Update to iD v2.15.3

[rails.git] / vendor / assets / polyfill / es6.js

diff --git a/vendor/assets/polyfill/es6.js b/vendor/assets/polyfill/es6.js
index ae2436e1a7cc56fafb736809d914fd3936ec536e..d23ba923f7f13ca58b5004371c676b2ff62412e6 100644 (file)
--- a/vendor/assets/polyfill/es6.js
+++ b/vendor/assets/polyfill/es6.js
@@ -1,87 +1,60 @@
-/* Polyfill service v3.27.1
+/* Polyfill service v3.34.0

  * For detailed credits and licence information see https://github.com/financial-times/polyfill-service.
  * 
  * Features requested: es6
  * 
  * For detailed credits and licence information see https://github.com/financial-times/polyfill-service.
  * 
  * Features requested: es6
  * 

+ * - _ESAbstract.ArrayCreate, License: CC0 (required by "Array.from", "es6", "Array.of", "_ESAbstract.ArraySpeciesCreate", "Array.prototype.filter", "Symbol", "Map", "Set", "Symbol.hasInstance", "Symbol.isConcatSpreadable", "Symbol.iterator", "Array.prototype.@@iterator", "String.prototype.@@iterator", "Symbol.match", "Symbol.replace", "Symbol.search", "Symbol.species", "Symbol.split", "Symbol.toPrimitive", "Symbol.toStringTag", "Symbol.unscopables", "Array.prototype.map")
+ * - _ESAbstract.Call, License: CC0 (required by "Array.from", "es6", "Array.prototype.find", "Array.prototype.findIndex", "WeakMap", "WeakSet", "_ESAbstract.GetIterator", "Map", "Set", "_ESAbstract.IteratorClose", "_ESAbstract.IteratorNext", "_ESAbstract.IteratorStep", "Array.prototype.forEach", "Object.setPrototypeOf", "Symbol", "Symbol.hasInstance", "Symbol.isConcatSpreadable", "Symbol.iterator", "Array.prototype.@@iterator", "String.prototype.@@iterator", "Symbol.match", "Symbol.replace", "Symbol.search", "Symbol.species", "Symbol.split", "Symbol.toPrimitive", "Symbol.toStringTag", "Symbol.unscopables", "Array.prototype.filter", "Array.prototype.map", "_ESAbstract.ToPrimitive", "_ESAbstract.ToString", "Array.of", "Array.prototype.fill", "String.prototype.codePointAt", "String.prototype.endsWith", "String.prototype.includes", "String.prototype.repeat", "String.prototype.startsWith", "_ESAbstract.OrdinaryToPrimitive")
+ * - _ESAbstract.Get, License: CC0 (required by "Array.from", "es6", "Array.prototype.fill", "Array.prototype.find", "Array.prototype.findIndex", "Object.assign", "RegExp.prototype.flags", "WeakMap", "WeakSet", "_ESAbstract.IteratorValue", "Map", "Set", "_ESAbstract.IteratorComplete", "_ESAbstract.IteratorStep", "Array.prototype.forEach", "Object.setPrototypeOf", "Symbol", "Symbol.hasInstance", "Symbol.isConcatSpreadable", "Symbol.iterator", "Array.prototype.@@iterator", "String.prototype.@@iterator", "Symbol.match", "Symbol.replace", "Symbol.search", "Symbol.species", "Symbol.split", "Symbol.toPrimitive", "Symbol.toStringTag", "Symbol.unscopables", "_ESAbstract.IsRegExp", "String.prototype.endsWith", "String.prototype.includes", "String.prototype.startsWith", "Array.prototype.filter", "Array.prototype.map", "_ESAbstract.GetPrototypeFromConstructor", "_ESAbstract.OrdinaryCreateFromConstructor", "_ESAbstract.Construct", "Array.of", "Object.defineProperties", "Object.create", "_ESAbstract.GetIterator", "_ArrayIterator", "Array.prototype.entries", "Array.prototype.keys", "Array.prototype.values", "_Iterator", "_StringIterator", "_ESAbstract.ArraySpeciesCreate", "_ESAbstract.OrdinaryToPrimitive", "_ESAbstract.ToPrimitive", "_ESAbstract.ToString", "String.prototype.codePointAt", "String.prototype.repeat")
+ * - _ESAbstract.HasProperty, License: CC0 (required by "Array.prototype.copyWithin", "es6", "Array.prototype.forEach", "Object.setPrototypeOf", "Symbol", "Map", "Array.from", "Set", "Symbol.hasInstance", "Symbol.isConcatSpreadable", "Symbol.iterator", "Array.prototype.@@iterator", "String.prototype.@@iterator", "Symbol.match", "Symbol.replace", "Symbol.search", "Symbol.species", "Symbol.split", "Symbol.toPrimitive", "Symbol.toStringTag", "Symbol.unscopables", "Array.prototype.filter", "Array.prototype.map")
+ * - _ESAbstract.IsArray, License: CC0 (required by "String.fromCodePoint", "es6", "WeakMap", "WeakSet", "Array.isArray", "Map", "Array.from", "Set", "_ESAbstract.ArraySpeciesCreate", "Array.prototype.filter", "Symbol", "Symbol.hasInstance", "Symbol.isConcatSpreadable", "Symbol.iterator", "Array.prototype.@@iterator", "String.prototype.@@iterator", "Symbol.match", "Symbol.replace", "Symbol.search", "Symbol.species", "Symbol.split", "Symbol.toPrimitive", "Symbol.toStringTag", "Symbol.unscopables", "Array.prototype.map")

  * - _ESAbstract.IsCallable, License: CC0 (required by "Array.from", "es6", "Array.prototype.find", "Array.prototype.findIndex", "Map", "Set", "WeakMap", "WeakSet", "_ESAbstract.GetMethod", "Array.prototype.forEach", "Object.setPrototypeOf", "Symbol", "Symbol.hasInstance", "Symbol.isConcatSpreadable", "Symbol.iterator", "Array.prototype.@@iterator", "String.prototype.@@iterator", "Symbol.match", "Symbol.replace", "Symbol.search", "Symbol.species", "Symbol.split", "Symbol.toPrimitive", "Symbol.toStringTag", "Symbol.unscopables", "Array.prototype.filter", "Array.prototype.map", "Function.prototype.bind", "_ESAbstract.Construct", "Array.of", "Object.getOwnPropertyDescriptor", "Object.assign", "_ESAbstract.OrdinaryToPrimitive", "_ESAbstract.ToPrimitive", "_ESAbstract.ToString", "Array.prototype.fill", "String.prototype.codePointAt", "String.prototype.endsWith", "String.prototype.includes", "String.prototype.repeat", "String.prototype.startsWith")
  * - _ESAbstract.IsCallable, License: CC0 (required by "Array.from", "es6", "Array.prototype.find", "Array.prototype.findIndex", "Map", "Set", "WeakMap", "WeakSet", "_ESAbstract.GetMethod", "Array.prototype.forEach", "Object.setPrototypeOf", "Symbol", "Symbol.hasInstance", "Symbol.isConcatSpreadable", "Symbol.iterator", "Array.prototype.@@iterator", "String.prototype.@@iterator", "Symbol.match", "Symbol.replace", "Symbol.search", "Symbol.species", "Symbol.split", "Symbol.toPrimitive", "Symbol.toStringTag", "Symbol.unscopables", "Array.prototype.filter", "Array.prototype.map", "Function.prototype.bind", "_ESAbstract.Construct", "Array.of", "Object.getOwnPropertyDescriptor", "Object.assign", "_ESAbstract.OrdinaryToPrimitive", "_ESAbstract.ToPrimitive", "_ESAbstract.ToString", "Array.prototype.fill", "String.prototype.codePointAt", "String.prototype.endsWith", "String.prototype.includes", "String.prototype.repeat", "String.prototype.startsWith")

- * - Object.defineProperty, License: CC0 (required by "Function.name", "es6", "Map", "Array.from", "Number.Epsilon", "Number.MAX_SAFE_INTEGER", "Number.MIN_SAFE_INTEGER", "Object.setPrototypeOf", "RegExp.prototype.flags", "Set", "Symbol.hasInstance", "Symbol.isConcatSpreadable", "Symbol.iterator", "Array.prototype.@@iterator", "String.prototype.@@iterator", "Symbol.match", "Symbol.replace", "Symbol.search", "Symbol.species", "Symbol.split", "Symbol.toPrimitive", "Symbol.toStringTag", "Symbol.unscopables", "Symbol", "WeakMap", "WeakSet", "_ESAbstract.CreateMethodProperty", "Array.of", "Array.prototype.copyWithin", "Array.prototype.entries", "Array.prototype.fill", "Array.prototype.find", "Array.prototype.findIndex", "Array.prototype.keys", "Array.prototype.values", "Math.acosh", "Math.asinh", "Math.atanh", "Math.cbrt", "Math.clz32", "Math.cosh", "Math.expm1", "Math.fround", "Math.hypot", "Math.imul", "Math.log10", "Math.log1p", "Math.log2", "Math.sign", "Math.sinh", "Math.tanh", "Math.trunc", "Number.isFinite", "Number.isInteger", "Number.isNaN", "Number.isSafeInteger", "Number.parseFloat", "Number.parseInt", "Object.assign", "Object.is", "String.prototype.codePointAt", "String.prototype.endsWith", "String.prototype.includes", "String.prototype.repeat", "String.prototype.startsWith", "_ArrayIterator", "_ESAbstract.OrdinaryCreateFromConstructor", "_ESAbstract.Construct", "_StringIterator", "_ESAbstract.CreateDataProperty", "_ESAbstract.CreateDataPropertyOrThrow", "_ESAbstract.CreateIterResultObject", "_Iterator", "Object.defineProperties", "Object.create", "_ESAbstract.GetIterator")
- * - _ESAbstract.CreateMethodProperty, License: CC0 (required by "Array.from", "es6", "Array.of", "Array.prototype.@@iterator", "Array.prototype.copyWithin", "Array.prototype.entries", "Array.prototype.fill", "Array.prototype.find", "Array.prototype.findIndex", "Array.prototype.keys", "Array.prototype.values", "Map", "Math.acosh", "Math.asinh", "Math.atanh", "Math.cbrt", "Math.clz32", "Math.cosh", "Math.expm1", "Math.fround", "Math.hypot", "Math.imul", "Math.log10", "Math.log1p", "Math.log2", "Math.sign", "Math.sinh", "Math.tanh", "Math.trunc", "Number.isFinite", "Number.isInteger", "Number.isNaN", "Number.isSafeInteger", "Number.parseFloat", "Number.parseInt", "Object.assign", "Object.is", "Object.setPrototypeOf", "Set", "String.prototype.@@iterator", "String.prototype.codePointAt", "String.prototype.endsWith", "String.prototype.includes", "String.prototype.repeat", "String.prototype.startsWith", "WeakMap", "WeakSet", "Array.isArray", "Object.create", "Symbol", "Symbol.hasInstance", "Symbol.isConcatSpreadable", "Symbol.iterator", "Symbol.match", "Symbol.replace", "Symbol.search", "Symbol.species", "Symbol.split", "Symbol.toPrimitive", "Symbol.toStringTag", "Symbol.unscopables", "_ESAbstract.GetIterator", "_ArrayIterator", "_ESAbstract.OrdinaryCreateFromConstructor", "_ESAbstract.Construct", "Object.getOwnPropertyDescriptor", "Array.prototype.forEach", "Object.getPrototypeOf", "Object.getOwnPropertyNames", "Array.prototype.filter", "Array.prototype.map", "Object.freeze", "Function.prototype.bind", "Object.defineProperties", "_Iterator", "_StringIterator")
+ * - _ESAbstract.RequireObjectCoercible, License: CC0 (required by "String.prototype.@@iterator", "es6", "String.prototype.codePointAt", "String.prototype.endsWith", "String.prototype.includes", "String.prototype.repeat", "String.prototype.startsWith")
+ * - _ESAbstract.SameValueNonNumber, License: CC0 (required by "_ESAbstract.SameValueZero", "Map", "es6", "Array.from", "Set", "WeakSet", "_ESAbstract.SameValue", "Object.is", "String.fromCodePoint", "WeakMap")
+ * - _ESAbstract.ToBoolean, License: CC0 (required by "Array.prototype.find", "es6", "Array.prototype.findIndex", "RegExp.prototype.flags", "_ESAbstract.IteratorComplete", "Map", "Array.from", "Set", "_ESAbstract.IteratorStep", "WeakMap", "WeakSet", "_ESAbstract.IsRegExp", "String.prototype.endsWith", "String.prototype.includes", "String.prototype.startsWith", "Array.prototype.filter", "Symbol", "Symbol.hasInstance", "Symbol.isConcatSpreadable", "Symbol.iterator", "Array.prototype.@@iterator", "String.prototype.@@iterator", "Symbol.match", "Symbol.replace", "Symbol.search", "Symbol.species", "Symbol.split", "Symbol.toPrimitive", "Symbol.toStringTag", "Symbol.unscopables")
+ * - _ESAbstract.ToInteger, License: CC0 (required by "Array.prototype.copyWithin", "es6", "Array.prototype.fill", "Number.isInteger", "Number.isSafeInteger", "String.fromCodePoint", "String.prototype.codePointAt", "String.prototype.endsWith", "String.prototype.includes", "String.prototype.repeat", "String.prototype.startsWith", "_ESAbstract.ToLength", "Array.from", "Array.prototype.find", "Array.prototype.findIndex")
+ * - _ESAbstract.ToLength, License: CC0 (required by "Array.from", "es6", "Array.prototype.fill", "Array.prototype.find", "Array.prototype.findIndex", "Array.prototype.forEach", "Object.setPrototypeOf", "Symbol", "Map", "Set", "Symbol.hasInstance", "Symbol.isConcatSpreadable", "Symbol.iterator", "Array.prototype.@@iterator", "String.prototype.@@iterator", "Symbol.match", "Symbol.replace", "Symbol.search", "Symbol.species", "Symbol.split", "Symbol.toPrimitive", "Symbol.toStringTag", "Symbol.unscopables", "Array.prototype.filter", "Array.prototype.map")
+ * - _ESAbstract.ToNumber, License: CC0 (required by "String.fromCodePoint", "es6")

  * - _ESAbstract.ToObject, License: CC0 (required by "Array.from", "es6", "Array.prototype.entries", "Array.prototype.fill", "Array.prototype.find", "Array.prototype.findIndex", "Array.prototype.keys", "Array.prototype.values", "Array.prototype.@@iterator", "Object.assign", "Array.prototype.forEach", "Object.setPrototypeOf", "Symbol", "Map", "Set", "Symbol.hasInstance", "Symbol.isConcatSpreadable", "Symbol.iterator", "String.prototype.@@iterator", "Symbol.match", "Symbol.replace", "Symbol.search", "Symbol.species", "Symbol.split", "Symbol.toPrimitive", "Symbol.toStringTag", "Symbol.unscopables", "Array.prototype.filter", "Array.prototype.map", "_ESAbstract.GetV", "_ESAbstract.GetMethod", "_ESAbstract.GetIterator", "WeakMap", "WeakSet", "Object.defineProperties", "Object.create", "_ArrayIterator", "_ESAbstract.OrdinaryCreateFromConstructor", "_ESAbstract.Construct", "Array.of", "_Iterator", "_StringIterator")
  * - _ESAbstract.GetV, License: CC0 (required by "_ESAbstract.GetMethod", "Array.from", "es6", "Map", "Set", "_ESAbstract.GetIterator", "WeakMap", "WeakSet")
  * - _ESAbstract.GetMethod, License: CC0 (required by "Array.from", "es6", "Map", "Set", "_ESAbstract.IsConstructor", "Array.of", "_ESAbstract.GetIterator", "WeakMap", "WeakSet", "_ESAbstract.IteratorClose", "_ESAbstract.ToPrimitive", "_ESAbstract.ToString", "Array.prototype.fill", "Array.prototype.find", "Array.prototype.findIndex", "String.prototype.@@iterator", "String.prototype.codePointAt", "String.prototype.endsWith", "String.prototype.includes", "String.prototype.repeat", "String.prototype.startsWith")
  * - _ESAbstract.ToObject, License: CC0 (required by "Array.from", "es6", "Array.prototype.entries", "Array.prototype.fill", "Array.prototype.find", "Array.prototype.findIndex", "Array.prototype.keys", "Array.prototype.values", "Array.prototype.@@iterator", "Object.assign", "Array.prototype.forEach", "Object.setPrototypeOf", "Symbol", "Map", "Set", "Symbol.hasInstance", "Symbol.isConcatSpreadable", "Symbol.iterator", "String.prototype.@@iterator", "Symbol.match", "Symbol.replace", "Symbol.search", "Symbol.species", "Symbol.split", "Symbol.toPrimitive", "Symbol.toStringTag", "Symbol.unscopables", "Array.prototype.filter", "Array.prototype.map", "_ESAbstract.GetV", "_ESAbstract.GetMethod", "_ESAbstract.GetIterator", "WeakMap", "WeakSet", "Object.defineProperties", "Object.create", "_ArrayIterator", "_ESAbstract.OrdinaryCreateFromConstructor", "_ESAbstract.Construct", "Array.of", "_Iterator", "_StringIterator")
  * - _ESAbstract.GetV, License: CC0 (required by "_ESAbstract.GetMethod", "Array.from", "es6", "Map", "Set", "_ESAbstract.GetIterator", "WeakMap", "WeakSet")
  * - _ESAbstract.GetMethod, License: CC0 (required by "Array.from", "es6", "Map", "Set", "_ESAbstract.IsConstructor", "Array.of", "_ESAbstract.GetIterator", "WeakMap", "WeakSet", "_ESAbstract.IteratorClose", "_ESAbstract.ToPrimitive", "_ESAbstract.ToString", "Array.prototype.fill", "Array.prototype.find", "Array.prototype.findIndex", "String.prototype.@@iterator", "String.prototype.codePointAt", "String.prototype.endsWith", "String.prototype.includes", "String.prototype.repeat", "String.prototype.startsWith")

- * - _ESAbstract.ToInteger, License: CC0 (required by "Array.prototype.copyWithin", "es6", "Array.prototype.fill", "Number.isInteger", "Number.isSafeInteger", "String.prototype.codePointAt", "String.prototype.endsWith", "String.prototype.includes", "String.prototype.repeat", "String.prototype.startsWith", "_ESAbstract.ToLength", "Array.from", "Array.prototype.find", "Array.prototype.findIndex")
- * - _ESAbstract.ToLength, License: CC0 (required by "Array.from", "es6", "Array.prototype.fill", "Array.prototype.find", "Array.prototype.findIndex", "Array.prototype.forEach", "Object.setPrototypeOf", "Symbol", "Map", "Set", "Symbol.hasInstance", "Symbol.isConcatSpreadable", "Symbol.iterator", "Array.prototype.@@iterator", "String.prototype.@@iterator", "Symbol.match", "Symbol.replace", "Symbol.search", "Symbol.species", "Symbol.split", "Symbol.toPrimitive", "Symbol.toStringTag", "Symbol.unscopables", "Array.prototype.filter", "Array.prototype.map")
- * - _ESAbstract.Get, License: CC0 (required by "Array.from", "es6", "Array.prototype.fill", "Array.prototype.find", "Array.prototype.findIndex", "Object.assign", "RegExp.prototype.flags", "WeakMap", "WeakSet", "_ESAbstract.IteratorValue", "Map", "Set", "_ESAbstract.IteratorComplete", "_ESAbstract.IteratorStep", "Array.prototype.forEach", "Object.setPrototypeOf", "Symbol", "Symbol.hasInstance", "Symbol.isConcatSpreadable", "Symbol.iterator", "Array.prototype.@@iterator", "String.prototype.@@iterator", "Symbol.match", "Symbol.replace", "Symbol.search", "Symbol.species", "Symbol.split", "Symbol.toPrimitive", "Symbol.toStringTag", "Symbol.unscopables", "_ESAbstract.IsRegExp", "String.prototype.endsWith", "String.prototype.includes", "String.prototype.startsWith", "Array.prototype.filter", "Array.prototype.map", "_ESAbstract.GetPrototypeFromConstructor", "_ESAbstract.OrdinaryCreateFromConstructor", "_ESAbstract.Construct", "Array.of", "Object.defineProperties", "Object.create", "_ESAbstract.GetIterator", "_ArrayIterator", "Array.prototype.entries", "Array.prototype.keys", "Array.prototype.values", "_Iterator", "_StringIterator", "_ESAbstract.ArraySpeciesCreate", "_ESAbstract.OrdinaryToPrimitive", "_ESAbstract.ToPrimitive", "_ESAbstract.ToString", "String.prototype.codePointAt", "String.prototype.repeat")
- * - _ESAbstract.HasProperty, License: CC0 (required by "Array.prototype.copyWithin", "es6", "Array.prototype.forEach", "Object.setPrototypeOf", "Symbol", "Map", "Array.from", "Set", "Symbol.hasInstance", "Symbol.isConcatSpreadable", "Symbol.iterator", "Array.prototype.@@iterator", "String.prototype.@@iterator", "Symbol.match", "Symbol.replace", "Symbol.search", "Symbol.species", "Symbol.split", "Symbol.toPrimitive", "Symbol.toStringTag", "Symbol.unscopables", "Array.prototype.filter", "Array.prototype.map")
- * - _ESAbstract.Call, License: CC0 (required by "Array.from", "es6", "Array.prototype.find", "Array.prototype.findIndex", "WeakMap", "WeakSet", "_ESAbstract.GetIterator", "Map", "Set", "_ESAbstract.IteratorClose", "_ESAbstract.IteratorNext", "_ESAbstract.IteratorStep", "Array.prototype.forEach", "Object.setPrototypeOf", "Symbol", "Symbol.hasInstance", "Symbol.isConcatSpreadable", "Symbol.iterator", "Array.prototype.@@iterator", "String.prototype.@@iterator", "Symbol.match", "Symbol.replace", "Symbol.search", "Symbol.species", "Symbol.split", "Symbol.toPrimitive", "Symbol.toStringTag", "Symbol.unscopables", "Array.prototype.filter", "Array.prototype.map", "_ESAbstract.ToPrimitive", "_ESAbstract.ToString", "Array.of", "Array.prototype.fill", "String.prototype.codePointAt", "String.prototype.endsWith", "String.prototype.includes", "String.prototype.repeat", "String.prototype.startsWith", "_ESAbstract.OrdinaryToPrimitive")
- * - _ESAbstract.Type, License: CC0 (required by "Map", "es6", "Array.from", "Number.isFinite", "Number.isInteger", "Number.isNaN", "Number.isSafeInteger", "RegExp.prototype.flags", "WeakMap", "WeakSet", "_ESAbstract.IsConstructor", "Array.of", "_ESAbstract.GetIterator", "Set", "_ESAbstract.IteratorClose", "_ESAbstract.ToString", "Array.prototype.fill", "Array.prototype.find", "Array.prototype.findIndex", "String.prototype.@@iterator", "String.prototype.codePointAt", "String.prototype.endsWith", "String.prototype.includes", "String.prototype.repeat", "String.prototype.startsWith", "_ESAbstract.IteratorValue", "_ESAbstract.CreateIterResultObject", "_ESAbstract.IteratorComplete", "_ESAbstract.IteratorStep", "_ESAbstract.IteratorNext", "_ESAbstract.SameValueZero", "Object.create", "Object.setPrototypeOf", "Symbol", "Symbol.hasInstance", "Symbol.isConcatSpreadable", "Symbol.iterator", "Array.prototype.@@iterator", "Symbol.match", "Symbol.replace", "Symbol.search", "Symbol.species", "Symbol.split", "Symbol.toPrimitive", "Symbol.toStringTag", "Symbol.unscopables", "_ArrayIterator", "Array.prototype.entries", "Array.prototype.keys", "Array.prototype.values", "_ESAbstract.OrdinaryCreateFromConstructor", "_ESAbstract.Construct", "_ESAbstract.SameValue", "Object.is", "_ESAbstract.IsRegExp", "_ESAbstract.ToPrimitive", "_ESAbstract.GetPrototypeFromConstructor", "Object.defineProperties", "_Iterator", "_StringIterator", "_ESAbstract.ArraySpeciesCreate", "Array.prototype.filter", "Array.prototype.map", "_ESAbstract.OrdinaryToPrimitive")
- * - _ESAbstract.OrdinaryToPrimitive, License: CC0 (required by "_ESAbstract.ToPrimitive", "_ESAbstract.ToString", "Array.from", "es6", "Array.of", "Array.prototype.fill", "Array.prototype.find", "Array.prototype.findIndex", "String.prototype.@@iterator", "String.prototype.codePointAt", "String.prototype.endsWith", "String.prototype.includes", "String.prototype.repeat", "String.prototype.startsWith")
- * - _ESAbstract.ToPrimitive, License: CC0 (required by "_ESAbstract.ToString", "Array.from", "es6", "Array.of", "Array.prototype.fill", "Array.prototype.find", "Array.prototype.findIndex", "String.prototype.@@iterator", "String.prototype.codePointAt", "String.prototype.endsWith", "String.prototype.includes", "String.prototype.repeat", "String.prototype.startsWith")
- * - _ESAbstract.ToString, License: CC0 (required by "Array.from", "es6", "Array.of", "Array.prototype.fill", "Array.prototype.find", "Array.prototype.findIndex", "String.prototype.@@iterator", "String.prototype.codePointAt", "String.prototype.endsWith", "String.prototype.includes", "String.prototype.repeat", "String.prototype.startsWith", "Array.prototype.forEach", "Object.setPrototypeOf", "Symbol", "Map", "Set", "Symbol.hasInstance", "Symbol.isConcatSpreadable", "Symbol.iterator", "Array.prototype.@@iterator", "Symbol.match", "Symbol.replace", "Symbol.search", "Symbol.species", "Symbol.split", "Symbol.toPrimitive", "Symbol.toStringTag", "Symbol.unscopables", "Array.prototype.filter", "Array.prototype.map")
- * - Array.prototype.forEach, License: CC0 (required by "Object.setPrototypeOf", "es6", "Symbol", "Map", "Array.from", "Set", "Symbol.hasInstance", "Symbol.isConcatSpreadable", "Symbol.iterator", "Array.prototype.@@iterator", "String.prototype.@@iterator", "Symbol.match", "Symbol.replace", "Symbol.search", "Symbol.species", "Symbol.split", "Symbol.toPrimitive", "Symbol.toStringTag", "Symbol.unscopables")
- * - _ESAbstract.IsArray, License: CC0 (required by "WeakMap", "es6", "WeakSet", "Array.isArray", "Map", "Array.from", "Set", "_ESAbstract.ArraySpeciesCreate", "Array.prototype.filter", "Symbol", "Symbol.hasInstance", "Symbol.isConcatSpreadable", "Symbol.iterator", "Array.prototype.@@iterator", "String.prototype.@@iterator", "Symbol.match", "Symbol.replace", "Symbol.search", "Symbol.species", "Symbol.split", "Symbol.toPrimitive", "Symbol.toStringTag", "Symbol.unscopables", "Array.prototype.map")
- * - _ESAbstract.ArrayCreate, License: CC0 (required by "Array.from", "es6", "Array.of", "_ESAbstract.ArraySpeciesCreate", "Array.prototype.filter", "Symbol", "Map", "Set", "Symbol.hasInstance", "Symbol.isConcatSpreadable", "Symbol.iterator", "Array.prototype.@@iterator", "String.prototype.@@iterator", "Symbol.match", "Symbol.replace", "Symbol.search", "Symbol.species", "Symbol.split", "Symbol.toPrimitive", "Symbol.toStringTag", "Symbol.unscopables", "Array.prototype.map")
- * - _ESAbstract.IsConstructor, License: CC0 (required by "Array.from", "es6", "Array.of", "_ESAbstract.Construct", "_ESAbstract.ArraySpeciesCreate", "Array.prototype.filter", "Symbol", "Map", "Set", "Symbol.hasInstance", "Symbol.isConcatSpreadable", "Symbol.iterator", "Array.prototype.@@iterator", "String.prototype.@@iterator", "Symbol.match", "Symbol.replace", "Symbol.search", "Symbol.species", "Symbol.split", "Symbol.toPrimitive", "Symbol.toStringTag", "Symbol.unscopables", "Array.prototype.map")
+ * - _ESAbstract.ToUint32, License: CC0 (required by "Math.clz32", "es6", "Math.imul")
+ * - _ESAbstract.Type, License: CC0 (required by "Map", "es6", "Array.from", "Number.isFinite", "Number.isInteger", "Number.isNaN", "Number.isSafeInteger", "Object.seal", "RegExp.prototype.flags", "WeakMap", "WeakSet", "_ESAbstract.IsConstructor", "Array.of", "_ESAbstract.GetIterator", "Set", "_ESAbstract.IteratorClose", "_ESAbstract.ToString", "Array.prototype.fill", "Array.prototype.find", "Array.prototype.findIndex", "String.prototype.@@iterator", "String.prototype.codePointAt", "String.prototype.endsWith", "String.prototype.includes", "String.prototype.repeat", "String.prototype.startsWith", "_ESAbstract.IteratorValue", "_ESAbstract.CreateIterResultObject", "_ESAbstract.IteratorComplete", "_ESAbstract.IteratorStep", "_ESAbstract.IteratorNext", "_ESAbstract.SameValueZero", "Object.create", "Object.setPrototypeOf", "Symbol", "Symbol.hasInstance", "Symbol.isConcatSpreadable", "Symbol.iterator", "Array.prototype.@@iterator", "Symbol.match", "Symbol.replace", "Symbol.search", "Symbol.species", "Symbol.split", "Symbol.toPrimitive", "Symbol.toStringTag", "Symbol.unscopables", "_ArrayIterator", "Array.prototype.entries", "Array.prototype.keys", "Array.prototype.values", "_ESAbstract.OrdinaryCreateFromConstructor", "_ESAbstract.Construct", "_ESAbstract.SameValue", "Object.is", "String.fromCodePoint", "_ESAbstract.IsRegExp", "_ESAbstract.ToPrimitive", "_ESAbstract.GetPrototypeFromConstructor", "Object.defineProperties", "_Iterator", "_StringIterator", "_ESAbstract.ArraySpeciesCreate", "Array.prototype.filter", "Array.prototype.map", "_ESAbstract.OrdinaryToPrimitive")

  * - _ESAbstract.GetPrototypeFromConstructor, License: CC0 (required by "_ESAbstract.OrdinaryCreateFromConstructor", "Map", "es6", "Array.from", "Set", "WeakMap", "WeakSet", "_ESAbstract.Construct", "Array.of")
  * - _ESAbstract.GetPrototypeFromConstructor, License: CC0 (required by "_ESAbstract.OrdinaryCreateFromConstructor", "Map", "es6", "Array.from", "Set", "WeakMap", "WeakSet", "_ESAbstract.Construct", "Array.of")

- * - Object.keys, License: MIT (required by "Object.assign", "es6", "Symbol", "Map", "Array.from", "Set", "Symbol.hasInstance", "Symbol.isConcatSpreadable", "Symbol.iterator", "Array.prototype.@@iterator", "String.prototype.@@iterator", "Symbol.match", "Symbol.replace", "Symbol.search", "Symbol.species", "Symbol.split", "Symbol.toPrimitive", "Symbol.toStringTag", "Symbol.unscopables", "Object.defineProperties", "Object.create", "Object.setPrototypeOf", "_ESAbstract.GetIterator", "WeakMap", "WeakSet", "_ArrayIterator", "Array.prototype.entries", "Array.prototype.keys", "Array.prototype.values", "_ESAbstract.OrdinaryCreateFromConstructor", "_ESAbstract.Construct", "Array.of", "_Iterator", "_StringIterator")
- * - Function.prototype.bind, License: MIT (required by "_ESAbstract.Construct", "Array.from", "es6", "Array.of", "Object.getOwnPropertyDescriptor", "Object.assign", "Object.setPrototypeOf", "Symbol", "Map", "Set", "Symbol.hasInstance", "Symbol.isConcatSpreadable", "Symbol.iterator", "Array.prototype.@@iterator", "String.prototype.@@iterator", "Symbol.match", "Symbol.replace", "Symbol.search", "Symbol.species", "Symbol.split", "Symbol.toPrimitive", "Symbol.toStringTag", "Symbol.unscopables", "_Iterator", "_ArrayIterator", "Array.prototype.entries", "Array.prototype.keys", "Array.prototype.values", "_StringIterator")
- * - Object.getOwnPropertyDescriptor, License: CC0 (required by "Object.assign", "es6", "Object.setPrototypeOf", "Symbol", "Map", "Array.from", "Set", "Symbol.hasInstance", "Symbol.isConcatSpreadable", "Symbol.iterator", "Array.prototype.@@iterator", "String.prototype.@@iterator", "Symbol.match", "Symbol.replace", "Symbol.search", "Symbol.species", "Symbol.split", "Symbol.toPrimitive", "Symbol.toStringTag", "Symbol.unscopables", "Object.defineProperties", "Object.create", "_ESAbstract.GetIterator", "WeakMap", "WeakSet", "_ArrayIterator", "Array.prototype.entries", "Array.prototype.keys", "Array.prototype.values", "_ESAbstract.OrdinaryCreateFromConstructor", "_ESAbstract.Construct", "Array.of", "_Iterator", "_StringIterator")
- * - Object.defineProperties, License: CC0 (required by "Object.create", "Map", "es6", "Array.from", "Object.setPrototypeOf", "Set", "Symbol", "Symbol.hasInstance", "Symbol.isConcatSpreadable", "Symbol.iterator", "Array.prototype.@@iterator", "String.prototype.@@iterator", "Symbol.match", "Symbol.replace", "Symbol.search", "Symbol.species", "Symbol.split", "Symbol.toPrimitive", "Symbol.toStringTag", "Symbol.unscopables", "_ESAbstract.GetIterator", "WeakMap", "WeakSet", "_ArrayIterator", "Array.prototype.entries", "Array.prototype.keys", "Array.prototype.values", "_ESAbstract.OrdinaryCreateFromConstructor", "_ESAbstract.Construct", "Array.of", "_Iterator", "_StringIterator")
- * - Object.create, License: CC0 (required by "Map", "es6", "Array.from", "Object.setPrototypeOf", "Set", "Symbol", "Symbol.hasInstance", "Symbol.isConcatSpreadable", "Symbol.iterator", "Array.prototype.@@iterator", "String.prototype.@@iterator", "Symbol.match", "Symbol.replace", "Symbol.search", "Symbol.species", "Symbol.split", "Symbol.toPrimitive", "Symbol.toStringTag", "Symbol.unscopables", "_ESAbstract.GetIterator", "WeakMap", "WeakSet", "_ArrayIterator", "Array.prototype.entries", "Array.prototype.keys", "Array.prototype.values", "_ESAbstract.OrdinaryCreateFromConstructor", "_ESAbstract.Construct", "Array.of", "_StringIterator")
- * - Object.getPrototypeOf, License: CC0 (required by "Object.setPrototypeOf", "es6", "_ESAbstract.OrdinaryCreateFromConstructor", "Map", "Array.from", "Set", "WeakMap", "WeakSet", "_ESAbstract.Construct", "Array.of")
- * - _ESAbstract.OrdinaryCreateFromConstructor, License: CC0 (required by "Map", "es6", "Array.from", "Set", "WeakMap", "WeakSet", "_ESAbstract.Construct", "Array.of")
- * - _ESAbstract.Construct, License: CC0 (required by "Array.from", "es6", "Array.of", "_ESAbstract.ArraySpeciesCreate", "Array.prototype.filter", "Symbol", "Map", "Set", "Symbol.hasInstance", "Symbol.isConcatSpreadable", "Symbol.iterator", "Array.prototype.@@iterator", "String.prototype.@@iterator", "Symbol.match", "Symbol.replace", "Symbol.search", "Symbol.species", "Symbol.split", "Symbol.toPrimitive", "Symbol.toStringTag", "Symbol.unscopables", "Array.prototype.map")
- * - _ESAbstract.ArraySpeciesCreate, License: CC0 (required by "Array.prototype.filter", "Symbol", "es6", "Map", "Array.from", "Set", "Symbol.hasInstance", "Symbol.isConcatSpreadable", "Symbol.iterator", "Array.prototype.@@iterator", "String.prototype.@@iterator", "Symbol.match", "Symbol.replace", "Symbol.search", "Symbol.species", "Symbol.split", "Symbol.toPrimitive", "Symbol.toStringTag", "Symbol.unscopables", "Array.prototype.map")
- * - _ESAbstract.ToBoolean, License: CC0 (required by "Array.prototype.find", "es6", "Array.prototype.findIndex", "RegExp.prototype.flags", "_ESAbstract.IteratorComplete", "Map", "Array.from", "Set", "_ESAbstract.IteratorStep", "WeakMap", "WeakSet", "_ESAbstract.IsRegExp", "String.prototype.endsWith", "String.prototype.includes", "String.prototype.startsWith", "Array.prototype.filter", "Symbol", "Symbol.hasInstance", "Symbol.isConcatSpreadable", "Symbol.iterator", "Array.prototype.@@iterator", "String.prototype.@@iterator", "Symbol.match", "Symbol.replace", "Symbol.search", "Symbol.species", "Symbol.split", "Symbol.toPrimitive", "Symbol.toStringTag", "Symbol.unscopables")
- * - _ESAbstract.CreateDataProperty, License: CC0 (required by "_ESAbstract.CreateDataPropertyOrThrow", "Array.from", "es6", "Array.of", "_ESAbstract.CreateIterResultObject", "Map", "Set")
- * - _ESAbstract.CreateDataPropertyOrThrow, License: CC0 (required by "Array.from", "es6", "Array.of", "Array.prototype.filter", "Symbol", "Map", "Set", "Symbol.hasInstance", "Symbol.isConcatSpreadable", "Symbol.iterator", "Array.prototype.@@iterator", "String.prototype.@@iterator", "Symbol.match", "Symbol.replace", "Symbol.search", "Symbol.species", "Symbol.split", "Symbol.toPrimitive", "Symbol.toStringTag", "Symbol.unscopables", "Array.prototype.map")
- * - Array.prototype.filter, License: CC0 (required by "Symbol", "es6", "Map", "Array.from", "Set", "Symbol.hasInstance", "Symbol.isConcatSpreadable", "Symbol.iterator", "Array.prototype.@@iterator", "String.prototype.@@iterator", "Symbol.match", "Symbol.replace", "Symbol.search", "Symbol.species", "Symbol.split", "Symbol.toPrimitive", "Symbol.toStringTag", "Symbol.unscopables")
- * - Array.prototype.map, License: CC0 (required by "Symbol", "es6", "Map", "Array.from", "Set", "Symbol.hasInstance", "Symbol.isConcatSpreadable", "Symbol.iterator", "Array.prototype.@@iterator", "String.prototype.@@iterator", "Symbol.match", "Symbol.replace", "Symbol.search", "Symbol.species", "Symbol.split", "Symbol.toPrimitive", "Symbol.toStringTag", "Symbol.unscopables")
- * - Object.getOwnPropertyNames, License: CC0 (required by "Object.setPrototypeOf", "es6", "Symbol", "Map", "Array.from", "Set", "Symbol.hasInstance", "Symbol.isConcatSpreadable", "Symbol.iterator", "Array.prototype.@@iterator", "String.prototype.@@iterator", "Symbol.match", "Symbol.replace", "Symbol.search", "Symbol.species", "Symbol.split", "Symbol.toPrimitive", "Symbol.toStringTag", "Symbol.unscopables")
- * - Object.freeze, License: CC0 (required by "Symbol", "es6", "Map", "Array.from", "Set", "Symbol.hasInstance", "Symbol.isConcatSpreadable", "Symbol.iterator", "Array.prototype.@@iterator", "String.prototype.@@iterator", "Symbol.match", "Symbol.replace", "Symbol.search", "Symbol.species", "Symbol.split", "Symbol.toPrimitive", "Symbol.toStringTag", "Symbol.unscopables")
- * - Symbol, License: MIT (required by "es6", "Map", "Array.from", "Set", "Symbol.hasInstance", "Symbol.isConcatSpreadable", "Symbol.iterator", "Array.prototype.@@iterator", "String.prototype.@@iterator", "Symbol.match", "Symbol.replace", "Symbol.search", "Symbol.species", "Symbol.split", "Symbol.toPrimitive", "Symbol.toStringTag", "Symbol.unscopables", "WeakMap", "WeakSet", "_Iterator", "_ArrayIterator", "Array.prototype.entries", "Array.prototype.keys", "Array.prototype.values", "_StringIterator")
- * - Symbol.iterator, License: MIT (required by "es6", "Array.from", "Array.prototype.@@iterator", "Map", "Set", "String.prototype.@@iterator", "_Iterator", "_ArrayIterator", "Array.prototype.entries", "Array.prototype.keys", "Array.prototype.values", "_StringIterator")
- * - _ESAbstract.GetIterator, License: CC0 (required by "Array.from", "es6", "Map", "Set", "WeakMap", "WeakSet")
+ * - _ESAbstract.IsConstructor, License: CC0 (required by "Array.from", "es6", "Array.of", "_ESAbstract.Construct", "_ESAbstract.ArraySpeciesCreate", "Array.prototype.filter", "Symbol", "Map", "Set", "Symbol.hasInstance", "Symbol.isConcatSpreadable", "Symbol.iterator", "Array.prototype.@@iterator", "String.prototype.@@iterator", "Symbol.match", "Symbol.replace", "Symbol.search", "Symbol.species", "Symbol.split", "Symbol.toPrimitive", "Symbol.toStringTag", "Symbol.unscopables", "Array.prototype.map")
+ * - _ESAbstract.IsRegExp, License: CC0 (required by "String.prototype.endsWith", "es6", "String.prototype.includes", "String.prototype.startsWith")

  * - _ESAbstract.IteratorClose, License: CC0 (required by "Array.from", "es6", "Map", "Set", "WeakMap", "WeakSet")
  * - _ESAbstract.IteratorClose, License: CC0 (required by "Array.from", "es6", "Map", "Set", "WeakMap", "WeakSet")

- * - _ESAbstract.IteratorNext, License: CC0 (required by "Map", "es6", "Array.from", "Set", "_ESAbstract.IteratorStep", "WeakMap", "WeakSet")

  * - _ESAbstract.IteratorComplete, License: CC0 (required by "Map", "es6", "Array.from", "Set", "_ESAbstract.IteratorStep", "WeakMap", "WeakSet")
  * - _ESAbstract.IteratorComplete, License: CC0 (required by "Map", "es6", "Array.from", "Set", "_ESAbstract.IteratorStep", "WeakMap", "WeakSet")

+ * - _ESAbstract.IteratorNext, License: CC0 (required by "Map", "es6", "Array.from", "Set", "_ESAbstract.IteratorStep", "WeakMap", "WeakSet")

  * - _ESAbstract.IteratorStep, License: CC0 (required by "Array.from", "es6", "Map", "Set", "WeakMap", "WeakSet")
  * - _ESAbstract.IteratorValue, License: CC0 (required by "Array.from", "es6", "Map", "Set", "WeakMap", "WeakSet")
  * - _ESAbstract.IteratorStep, License: CC0 (required by "Array.from", "es6", "Map", "Set", "WeakMap", "WeakSet")
  * - _ESAbstract.IteratorValue, License: CC0 (required by "Array.from", "es6", "Map", "Set", "WeakMap", "WeakSet")

- * - _ESAbstract.CreateIterResultObject, License: CC0 (required by "Map", "es6", "Array.from", "Set")
- * - _ESAbstract.SameValueNonNumber, License: CC0 (required by "_ESAbstract.SameValueZero", "Map", "es6", "Array.from", "Set", "WeakSet", "_ESAbstract.SameValue", "Object.is", "WeakMap")
+ * - _ESAbstract.OrdinaryToPrimitive, License: CC0 (required by "_ESAbstract.ToPrimitive", "_ESAbstract.ToString", "Array.from", "es6", "Array.of", "Array.prototype.fill", "Array.prototype.find", "Array.prototype.findIndex", "String.prototype.@@iterator", "String.prototype.codePointAt", "String.prototype.endsWith", "String.prototype.includes", "String.prototype.repeat", "String.prototype.startsWith")
+ * - _ESAbstract.SameValue, License: CC0 (required by "Object.is", "es6", "String.fromCodePoint", "WeakMap")

  * - _ESAbstract.SameValueZero, License: CC0 (required by "Map", "es6", "Array.from", "Set", "WeakSet")
  * - _ESAbstract.SameValueZero, License: CC0 (required by "Map", "es6", "Array.from", "Set", "WeakSet")

+ * - _ESAbstract.ToPrimitive, License: CC0 (required by "_ESAbstract.ToString", "Array.from", "es6", "Array.of", "Array.prototype.fill", "Array.prototype.find", "Array.prototype.findIndex", "String.prototype.@@iterator", "String.prototype.codePointAt", "String.prototype.endsWith", "String.prototype.includes", "String.prototype.repeat", "String.prototype.startsWith")
+ * - _ESAbstract.ToString, License: CC0 (required by "Array.from", "es6", "Array.of", "Array.prototype.fill", "Array.prototype.find", "Array.prototype.findIndex", "String.prototype.@@iterator", "String.prototype.codePointAt", "String.prototype.endsWith", "String.prototype.includes", "String.prototype.repeat", "String.prototype.startsWith", "Array.prototype.forEach", "Object.setPrototypeOf", "Symbol", "Map", "Set", "Symbol.hasInstance", "Symbol.isConcatSpreadable", "Symbol.iterator", "Array.prototype.@@iterator", "Symbol.match", "Symbol.replace", "Symbol.search", "Symbol.species", "Symbol.split", "Symbol.toPrimitive", "Symbol.toStringTag", "Symbol.unscopables", "Array.prototype.filter", "Array.prototype.map")
+ * - _ESAbstract.UTF16Decode, License: CC0 (required by "String.prototype.codePointAt", "es6")
+ * - _ESAbstract.UTF16Encoding, License: CC0 (required by "String.fromCodePoint", "es6")
+ * - _TypedArray, License: MIT (required by "Math.fround", "es6")
+ * - Object.defineProperty, License: CC0 (required by "Function.prototype.name", "es6", "Map", "Array.from", "Number.Epsilon", "Number.MAX_SAFE_INTEGER", "Number.MIN_SAFE_INTEGER", "Object.setPrototypeOf", "RegExp.prototype.flags", "Set", "Symbol.hasInstance", "Symbol.isConcatSpreadable", "Symbol.iterator", "Array.prototype.@@iterator", "String.prototype.@@iterator", "Symbol.match", "Symbol.replace", "Symbol.search", "Symbol.species", "Symbol.split", "Symbol.toPrimitive", "Symbol.toStringTag", "Symbol.unscopables", "Symbol", "WeakMap", "WeakSet", "_ESAbstract.CreateMethodProperty", "Array.of", "Array.prototype.copyWithin", "Array.prototype.entries", "Array.prototype.fill", "Array.prototype.find", "Array.prototype.findIndex", "Array.prototype.keys", "Array.prototype.values", "Math.acosh", "Math.asinh", "Math.atanh", "Math.cbrt", "Math.clz32", "Math.cosh", "Math.expm1", "Math.fround", "Math.hypot", "Math.imul", "Math.log10", "Math.log1p", "Math.log2", "Math.sign", "Math.sinh", "Math.tanh", "Math.trunc", "Number.isFinite", "Number.isInteger", "Number.isNaN", "Number.isSafeInteger", "Number.parseFloat", "Number.parseInt", "Object.assign", "Object.is", "Object.seal", "String.fromCodePoint", "String.prototype.codePointAt", "String.prototype.endsWith", "String.prototype.includes", "String.prototype.repeat", "String.prototype.startsWith", "_ArrayIterator", "_ESAbstract.OrdinaryCreateFromConstructor", "_ESAbstract.Construct", "_StringIterator", "_ESAbstract.CreateDataProperty", "_ESAbstract.CreateDataPropertyOrThrow", "_ESAbstract.CreateIterResultObject", "_Iterator", "Object.defineProperties", "Object.create", "_ESAbstract.GetIterator")
+ * - _ESAbstract.CreateDataProperty, License: CC0 (required by "_ESAbstract.CreateDataPropertyOrThrow", "Array.from", "es6", "Array.of", "_ESAbstract.CreateIterResultObject", "Map", "Set")
+ * - _ESAbstract.CreateDataPropertyOrThrow, License: CC0 (required by "Array.from", "es6", "Array.of", "Array.prototype.filter", "Symbol", "Map", "Set", "Symbol.hasInstance", "Symbol.isConcatSpreadable", "Symbol.iterator", "Array.prototype.@@iterator", "String.prototype.@@iterator", "Symbol.match", "Symbol.replace", "Symbol.search", "Symbol.species", "Symbol.split", "Symbol.toPrimitive", "Symbol.toStringTag", "Symbol.unscopables", "Array.prototype.map")
+ * - _ESAbstract.CreateIterResultObject, License: CC0 (required by "Map", "es6", "Array.from", "Set")
+ * - _ESAbstract.CreateMethodProperty, License: CC0 (required by "Array.from", "es6", "Array.of", "Array.prototype.@@iterator", "Array.prototype.copyWithin", "Array.prototype.entries", "Array.prototype.fill", "Array.prototype.find", "Array.prototype.findIndex", "Array.prototype.keys", "Array.prototype.values", "Map", "Math.acosh", "Math.asinh", "Math.atanh", "Math.cbrt", "Math.clz32", "Math.cosh", "Math.expm1", "Math.fround", "Math.hypot", "Math.imul", "Math.log10", "Math.log1p", "Math.log2", "Math.sign", "Math.sinh", "Math.tanh", "Math.trunc", "Number.isFinite", "Number.isInteger", "Number.isNaN", "Number.isSafeInteger", "Number.parseFloat", "Number.parseInt", "Object.assign", "Object.is", "Object.seal", "Object.setPrototypeOf", "Set", "String.fromCodePoint", "String.prototype.@@iterator", "String.prototype.codePointAt", "String.prototype.endsWith", "String.prototype.includes", "String.prototype.repeat", "String.prototype.startsWith", "WeakMap", "WeakSet", "Array.isArray", "Object.create", "Symbol", "Symbol.hasInstance", "Symbol.isConcatSpreadable", "Symbol.iterator", "Symbol.match", "Symbol.replace", "Symbol.search", "Symbol.species", "Symbol.split", "Symbol.toPrimitive", "Symbol.toStringTag", "Symbol.unscopables", "_ESAbstract.GetIterator", "_ArrayIterator", "_ESAbstract.OrdinaryCreateFromConstructor", "_ESAbstract.Construct", "Object.getOwnPropertyDescriptor", "Object.keys", "Array.prototype.forEach", "Object.getPrototypeOf", "Object.getOwnPropertyNames", "Array.prototype.filter", "Array.prototype.map", "Object.freeze", "Function.prototype.bind", "Object.defineProperties", "_Iterator", "_StringIterator")

  * - Array.isArray, License: CC0 (required by "Map", "es6", "Array.from", "Set", "WeakMap")
  * - Array.isArray, License: CC0 (required by "Map", "es6", "Array.from", "Set", "WeakMap")

- * - Symbol.species, License: MIT (required by "es6", "Map", "Array.from", "Set")
- * - Map, License: CC0 (required by "es6", "Array.from")
- * - Set, License: CC0 (required by "es6", "Array.from")
- * - Array.from, License: CC0 (required by "es6")
- * - Array.of, License: CC0 (required by "es6")
- * - Object.assign, License: CC0 (required by "es6", "_Iterator", "_ArrayIterator", "Array.prototype.entries", "Array.prototype.keys", "Array.prototype.values", "Array.prototype.@@iterator", "_StringIterator", "String.prototype.@@iterator")
- * - Symbol.toStringTag, License: MIT (required by "es6", "_Iterator", "_ArrayIterator", "Array.prototype.entries", "Array.prototype.keys", "Array.prototype.values", "Array.prototype.@@iterator", "_StringIterator", "String.prototype.@@iterator")
- * - _Iterator, License: MIT (required by "_ArrayIterator", "Array.prototype.entries", "es6", "Array.prototype.keys", "Array.prototype.values", "Array.prototype.@@iterator", "_StringIterator", "String.prototype.@@iterator")
- * - Object.setPrototypeOf, License: MIT (required by "es6", "_ArrayIterator", "Array.prototype.entries", "Array.prototype.keys", "Array.prototype.values", "Array.prototype.@@iterator", "_StringIterator", "String.prototype.@@iterator")
- * - _ESAbstract.RequireObjectCoercible, License: CC0 (required by "String.prototype.@@iterator", "es6", "String.prototype.codePointAt", "String.prototype.endsWith", "String.prototype.includes", "String.prototype.repeat", "String.prototype.startsWith")
- * - _ESAbstract.IsRegExp, License: CC0 (required by "String.prototype.endsWith", "es6", "String.prototype.includes", "String.prototype.startsWith")
- * - String.prototype.includes, License: CC0 (required by "es6", "_ArrayIterator", "Array.prototype.entries", "Array.prototype.keys", "Array.prototype.values", "Array.prototype.@@iterator")
- * - _ArrayIterator, License: MIT (required by "Array.prototype.entries", "es6", "Array.prototype.keys", "Array.prototype.values", "Array.prototype.@@iterator")
- * - Array.prototype.values, License: MIT (required by "es6", "Array.prototype.@@iterator")
- * - Array.prototype.@@iterator, License: CC0 (required by "es6")

  * - Array.prototype.copyWithin, License: MIT (required by "es6")
  * - Array.prototype.copyWithin, License: MIT (required by "es6")

- * - Array.prototype.entries, License: CC0 (required by "es6")

  * - Array.prototype.fill, License: CC0 (required by "es6")
  * - Array.prototype.find, License: CC0 (required by "es6")
  * - Array.prototype.findIndex, License: CC0 (required by "es6")
  * - Array.prototype.fill, License: CC0 (required by "es6")
  * - Array.prototype.find, License: CC0 (required by "es6")
  * - Array.prototype.findIndex, License: CC0 (required by "es6")

- * - Array.prototype.keys, License: CC0 (required by "es6")
- * - Function.name, License: MIT (required by "es6")
+ * - Array.prototype.forEach, License: CC0 (required by "Object.setPrototypeOf", "es6", "Symbol", "Map", "Array.from", "Set", "Symbol.hasInstance", "Symbol.isConcatSpreadable", "Symbol.iterator", "Array.prototype.@@iterator", "String.prototype.@@iterator", "Symbol.match", "Symbol.replace", "Symbol.search", "Symbol.species", "Symbol.split", "Symbol.toPrimitive", "Symbol.toStringTag", "Symbol.unscopables")
+ * - Function.prototype.bind, License: MIT (required by "_ESAbstract.Construct", "Array.from", "es6", "Array.of", "Object.getOwnPropertyDescriptor", "Object.assign", "Object.setPrototypeOf", "Symbol", "Map", "Set", "Symbol.hasInstance", "Symbol.isConcatSpreadable", "Symbol.iterator", "Array.prototype.@@iterator", "String.prototype.@@iterator", "Symbol.match", "Symbol.replace", "Symbol.search", "Symbol.species", "Symbol.split", "Symbol.toPrimitive", "Symbol.toStringTag", "Symbol.unscopables", "_Iterator", "_ArrayIterator", "Array.prototype.entries", "Array.prototype.keys", "Array.prototype.values", "_StringIterator")

  * - Math.acosh, License: CC0 (required by "es6")
  * - Math.asinh, License: CC0 (required by "es6")
  * - Math.atanh, License: CC0 (required by "es6")
  * - Math.cbrt, License: CC0 (required by "es6")
  * - Math.acosh, License: CC0 (required by "es6")
  * - Math.asinh, License: CC0 (required by "es6")
  * - Math.atanh, License: CC0 (required by "es6")
  * - Math.cbrt, License: CC0 (required by "es6")

- * - _ESAbstract.ToUint32, License: CC0 (required by "Math.clz32", "es6", "Math.imul")

  * - Math.clz32, License: CC0 (required by "es6")
  * - Math.cosh, License: CC0 (required by "es6")
  * - Math.expm1, License: CC0 (required by "es6")
  * - Math.clz32, License: CC0 (required by "es6")
  * - Math.cosh, License: CC0 (required by "es6")
  * - Math.expm1, License: CC0 (required by "es6")

- * - _TypedArray, License: Copyright 2010, Linden Research, Inc. Copyright 2014, Joshua Bell. (required by "Math.fround", "es6")

  * - Math.fround, License: CC0 (required by "es6")
  * - Math.hypot, License: CC0 (required by "es6")
  * - Math.imul, License: CC0 (required by "es6")
  * - Math.fround, License: CC0 (required by "es6")
  * - Math.hypot, License: CC0 (required by "es6")
  * - Math.imul, License: CC0 (required by "es6")


@@ -92,39 +65,142 @@
  * - Math.sinh, License: CC0 (required by "es6")
  * - Math.tanh, License: CC0 (required by "es6")
  * - Math.trunc, License: CC0 (required by "es6")
  * - Math.sinh, License: CC0 (required by "es6")
  * - Math.tanh, License: CC0 (required by "es6")
  * - Math.trunc, License: CC0 (required by "es6")

- * - Number.Epsilon, License: MIT (required by "es6")
- * - Number.MAX_SAFE_INTEGER, License: MIT (required by "es6")
- * - Number.MIN_SAFE_INTEGER, License: MIT (required by "es6")

  * - Number.isFinite, License: MIT (required by "es6")
  * - Number.isInteger, License: MIT (required by "es6")
  * - Number.isNaN, License: MIT (required by "es6")
  * - Number.isSafeInteger, License: MIT (required by "es6")
  * - Number.parseFloat, License: MIT (required by "es6")
  * - Number.parseInt, License: MIT (required by "es6")
  * - Number.isFinite, License: MIT (required by "es6")
  * - Number.isInteger, License: MIT (required by "es6")
  * - Number.isNaN, License: MIT (required by "es6")
  * - Number.isSafeInteger, License: MIT (required by "es6")
  * - Number.parseFloat, License: MIT (required by "es6")
  * - Number.parseInt, License: MIT (required by "es6")

- * - _ESAbstract.SameValue, License: CC0 (required by "Object.is", "es6", "WeakMap")
+ * - Function.prototype.name, License: MIT (required by "es6")
+ * - Number.Epsilon, License: MIT (required by "es6")
+ * - Number.MAX_SAFE_INTEGER, License: MIT (required by "es6")
+ * - Number.MIN_SAFE_INTEGER, License: MIT (required by "es6")
+ * - Object.freeze, License: CC0 (required by "Symbol", "es6", "Map", "Array.from", "Set", "Symbol.hasInstance", "Symbol.isConcatSpreadable", "Symbol.iterator", "Array.prototype.@@iterator", "String.prototype.@@iterator", "Symbol.match", "Symbol.replace", "Symbol.search", "Symbol.species", "Symbol.split", "Symbol.toPrimitive", "Symbol.toStringTag", "Symbol.unscopables")
+ * - Object.getOwnPropertyDescriptor, License: CC0 (required by "Object.assign", "es6", "Object.setPrototypeOf", "Symbol", "Map", "Array.from", "Set", "Symbol.hasInstance", "Symbol.isConcatSpreadable", "Symbol.iterator", "Array.prototype.@@iterator", "String.prototype.@@iterator", "Symbol.match", "Symbol.replace", "Symbol.search", "Symbol.species", "Symbol.split", "Symbol.toPrimitive", "Symbol.toStringTag", "Symbol.unscopables", "Object.defineProperties", "Object.create", "_ESAbstract.GetIterator", "WeakMap", "WeakSet", "_ArrayIterator", "Array.prototype.entries", "Array.prototype.keys", "Array.prototype.values", "_ESAbstract.OrdinaryCreateFromConstructor", "_ESAbstract.Construct", "Array.of", "_Iterator", "_StringIterator")
+ * - Object.getOwnPropertyNames, License: CC0 (required by "Object.setPrototypeOf", "es6", "Symbol", "Map", "Array.from", "Set", "Symbol.hasInstance", "Symbol.isConcatSpreadable", "Symbol.iterator", "Array.prototype.@@iterator", "String.prototype.@@iterator", "Symbol.match", "Symbol.replace", "Symbol.search", "Symbol.species", "Symbol.split", "Symbol.toPrimitive", "Symbol.toStringTag", "Symbol.unscopables")
+ * - Object.getPrototypeOf, License: CC0 (required by "Object.setPrototypeOf", "es6", "_ESAbstract.OrdinaryCreateFromConstructor", "Map", "Array.from", "Set", "WeakMap", "WeakSet", "_ESAbstract.Construct", "Array.of")

  * - Object.is, License: CC0 (required by "es6")
  * - Object.is, License: CC0 (required by "es6")

+ * - Object.keys, License: MIT (required by "Object.assign", "es6", "Symbol", "Map", "Array.from", "Set", "Symbol.hasInstance", "Symbol.isConcatSpreadable", "Symbol.iterator", "Array.prototype.@@iterator", "String.prototype.@@iterator", "Symbol.match", "Symbol.replace", "Symbol.search", "Symbol.species", "Symbol.split", "Symbol.toPrimitive", "Symbol.toStringTag", "Symbol.unscopables", "Object.defineProperties", "Object.create", "Object.setPrototypeOf", "_ESAbstract.GetIterator", "WeakMap", "WeakSet", "_ArrayIterator", "Array.prototype.entries", "Array.prototype.keys", "Array.prototype.values", "_ESAbstract.OrdinaryCreateFromConstructor", "_ESAbstract.Construct", "Array.of", "_Iterator", "_StringIterator")
+ * - Object.assign, License: CC0 (required by "es6", "_Iterator", "_ArrayIterator", "Array.prototype.entries", "Array.prototype.keys", "Array.prototype.values", "Array.prototype.@@iterator", "_StringIterator", "String.prototype.@@iterator")
+ * - Object.defineProperties, License: CC0 (required by "Object.create", "Map", "es6", "Array.from", "Object.setPrototypeOf", "Set", "Symbol", "Symbol.hasInstance", "Symbol.isConcatSpreadable", "Symbol.iterator", "Array.prototype.@@iterator", "String.prototype.@@iterator", "Symbol.match", "Symbol.replace", "Symbol.search", "Symbol.species", "Symbol.split", "Symbol.toPrimitive", "Symbol.toStringTag", "Symbol.unscopables", "_ESAbstract.GetIterator", "WeakMap", "WeakSet", "_ArrayIterator", "Array.prototype.entries", "Array.prototype.keys", "Array.prototype.values", "_ESAbstract.OrdinaryCreateFromConstructor", "_ESAbstract.Construct", "Array.of", "_Iterator", "_StringIterator")
+ * - Object.create, License: CC0 (required by "Map", "es6", "Array.from", "Object.setPrototypeOf", "Set", "Symbol", "Symbol.hasInstance", "Symbol.isConcatSpreadable", "Symbol.iterator", "Array.prototype.@@iterator", "String.prototype.@@iterator", "Symbol.match", "Symbol.replace", "Symbol.search", "Symbol.species", "Symbol.split", "Symbol.toPrimitive", "Symbol.toStringTag", "Symbol.unscopables", "_ESAbstract.GetIterator", "WeakMap", "WeakSet", "_ArrayIterator", "Array.prototype.entries", "Array.prototype.keys", "Array.prototype.values", "_ESAbstract.OrdinaryCreateFromConstructor", "_ESAbstract.Construct", "Array.of", "_StringIterator")
+ * - _ESAbstract.GetIterator, License: CC0 (required by "Array.from", "es6", "Map", "Set", "WeakMap", "WeakSet")
+ * - _ESAbstract.OrdinaryCreateFromConstructor, License: CC0 (required by "Map", "es6", "Array.from", "Set", "WeakMap", "WeakSet", "_ESAbstract.Construct", "Array.of")
+ * - _ESAbstract.Construct, License: CC0 (required by "Array.from", "es6", "Array.of", "_ESAbstract.ArraySpeciesCreate", "Array.prototype.filter", "Symbol", "Map", "Set", "Symbol.hasInstance", "Symbol.isConcatSpreadable", "Symbol.iterator", "Array.prototype.@@iterator", "String.prototype.@@iterator", "Symbol.match", "Symbol.replace", "Symbol.search", "Symbol.species", "Symbol.split", "Symbol.toPrimitive", "Symbol.toStringTag", "Symbol.unscopables", "Array.prototype.map")
+ * - _ESAbstract.ArraySpeciesCreate, License: CC0 (required by "Array.prototype.filter", "Symbol", "es6", "Map", "Array.from", "Set", "Symbol.hasInstance", "Symbol.isConcatSpreadable", "Symbol.iterator", "Array.prototype.@@iterator", "String.prototype.@@iterator", "Symbol.match", "Symbol.replace", "Symbol.search", "Symbol.species", "Symbol.split", "Symbol.toPrimitive", "Symbol.toStringTag", "Symbol.unscopables", "Array.prototype.map")
+ * - Array.prototype.filter, License: CC0 (required by "Symbol", "es6", "Map", "Array.from", "Set", "Symbol.hasInstance", "Symbol.isConcatSpreadable", "Symbol.iterator", "Array.prototype.@@iterator", "String.prototype.@@iterator", "Symbol.match", "Symbol.replace", "Symbol.search", "Symbol.species", "Symbol.split", "Symbol.toPrimitive", "Symbol.toStringTag", "Symbol.unscopables")
+ * - Array.prototype.map, License: CC0 (required by "Symbol", "es6", "Map", "Array.from", "Set", "Symbol.hasInstance", "Symbol.isConcatSpreadable", "Symbol.iterator", "Array.prototype.@@iterator", "String.prototype.@@iterator", "Symbol.match", "Symbol.replace", "Symbol.search", "Symbol.species", "Symbol.split", "Symbol.toPrimitive", "Symbol.toStringTag", "Symbol.unscopables")
+ * - Array.of, License: CC0 (required by "es6")
+ * - Object.seal, License: MIT (required by "es6")
+ * - Object.setPrototypeOf, License: MIT (required by "es6", "_ArrayIterator", "Array.prototype.entries", "Array.prototype.keys", "Array.prototype.values", "Array.prototype.@@iterator", "_StringIterator", "String.prototype.@@iterator")

  * - Promise, License: MIT (required by "es6")
  * - RegExp.prototype.flags, License: MIT (required by "es6")
  * - Promise, License: MIT (required by "es6")
  * - RegExp.prototype.flags, License: MIT (required by "es6")

- * - _StringIterator, License: MIT (required by "String.prototype.@@iterator", "es6")
- * - String.prototype.@@iterator, License: CC0 (required by "es6")
- * - _ESAbstract.UTF16Decode, License: CC0 (required by "String.prototype.codePointAt", "es6")
+ * - String.fromCodePoint, License: MIT (required by "es6")

  * - String.prototype.codePointAt, License: MIT (required by "es6")
  * - String.prototype.endsWith, License: CC0 (required by "es6")
  * - String.prototype.codePointAt, License: MIT (required by "es6")
  * - String.prototype.endsWith, License: CC0 (required by "es6")

+ * - String.prototype.includes, License: CC0 (required by "es6", "_ArrayIterator", "Array.prototype.entries", "Array.prototype.keys", "Array.prototype.values", "Array.prototype.@@iterator")

  * - String.prototype.repeat, License: CC0 (required by "es6")
  * - String.prototype.startsWith, License: CC0 (required by "es6")
  * - String.prototype.repeat, License: CC0 (required by "es6")
  * - String.prototype.startsWith, License: CC0 (required by "es6")

+ * - Symbol, License: MIT (required by "es6", "Map", "Array.from", "Set", "Symbol.hasInstance", "Symbol.isConcatSpreadable", "Symbol.iterator", "Array.prototype.@@iterator", "String.prototype.@@iterator", "Symbol.match", "Symbol.replace", "Symbol.search", "Symbol.species", "Symbol.split", "Symbol.toPrimitive", "Symbol.toStringTag", "Symbol.unscopables", "WeakMap", "WeakSet", "_Iterator", "_ArrayIterator", "Array.prototype.entries", "Array.prototype.keys", "Array.prototype.values", "_StringIterator")

  * - Symbol.hasInstance, License: MIT (required by "es6")
  * - Symbol.isConcatSpreadable, License: MIT (required by "es6")
  * - Symbol.hasInstance, License: MIT (required by "es6")
  * - Symbol.isConcatSpreadable, License: MIT (required by "es6")

+ * - Symbol.iterator, License: MIT (required by "es6", "Array.from", "Array.prototype.@@iterator", "Map", "Set", "String.prototype.@@iterator", "_Iterator", "_ArrayIterator", "Array.prototype.entries", "Array.prototype.keys", "Array.prototype.values", "_StringIterator")

  * - Symbol.match, License: MIT (required by "es6")
  * - Symbol.replace, License: MIT (required by "es6")
  * - Symbol.search, License: MIT (required by "es6")
  * - Symbol.match, License: MIT (required by "es6")
  * - Symbol.replace, License: MIT (required by "es6")
  * - Symbol.search, License: MIT (required by "es6")

+ * - Symbol.species, License: MIT (required by "es6", "Map", "Array.from", "Set")
+ * - Map, License: CC0 (required by "es6", "Array.from")
+ * - Set, License: CC0 (required by "es6", "Array.from")
+ * - Array.from, License: CC0 (required by "es6")

  * - Symbol.split, License: MIT (required by "es6")
  * - Symbol.toPrimitive, License: MIT (required by "es6")
  * - Symbol.split, License: MIT (required by "es6")
  * - Symbol.toPrimitive, License: MIT (required by "es6")

+ * - Symbol.toStringTag, License: MIT (required by "es6", "_Iterator", "_ArrayIterator", "Array.prototype.entries", "Array.prototype.keys", "Array.prototype.values", "Array.prototype.@@iterator", "_StringIterator", "String.prototype.@@iterator")
+ * - _Iterator, License: MIT (required by "_ArrayIterator", "Array.prototype.entries", "es6", "Array.prototype.keys", "Array.prototype.values", "Array.prototype.@@iterator", "_StringIterator", "String.prototype.@@iterator")
+ * - _ArrayIterator, License: MIT (required by "Array.prototype.entries", "es6", "Array.prototype.keys", "Array.prototype.values", "Array.prototype.@@iterator")
+ * - Array.prototype.entries, License: CC0 (required by "es6")
+ * - Array.prototype.keys, License: CC0 (required by "es6")
+ * - Array.prototype.values, License: MIT (required by "es6", "Array.prototype.@@iterator")
+ * - Array.prototype.@@iterator, License: CC0 (required by "es6")
+ * - _StringIterator, License: MIT (required by "String.prototype.@@iterator", "es6")
+ * - String.prototype.@@iterator, License: CC0 (required by "es6")

  * - Symbol.unscopables, License: MIT (required by "es6")
  * - Symbol.unscopables, License: MIT (required by "es6")

- * - WeakMap, License: CC0 (required by "es6")
- * - WeakSet, License: CC0 (required by "es6") */
+ * - WeakMap, License: MIT (required by "es6")
+ * - WeakSet, License: MIT (required by "es6") */

 
 (function(undefined) {
 
 
 (function(undefined) {
 

+// _ESAbstract.ArrayCreate
+// 9.4.2.2. ArrayCreate ( length [ , proto ] )
+function ArrayCreate(length /* [, proto] */) { // eslint-disable-line no-unused-vars
+       // 1. Assert: length is an integer Number ≥ 0.
+       // 2. If length is -0, set length to +0.
+       if (1 / length === -Infinity) {
+               length = 0;
+       }
+       // 3. If length>2^32-1, throw a RangeError exception.
+       if (length > (Math.pow(2, 32) - 1)) {
+               throw new RangeError('Invalid array length');
+       }
+       // 4. If proto is not present, set proto to the intrinsic object %ArrayPrototype%.
+       // 5. Let A be a newly created Array exotic object.
+       var A = [];
+       // 6. Set A's essential internal methods except for [[DefineOwnProperty]] to the default ordinary object definitions specified in 9.1.
+       // 7. Set A.[[DefineOwnProperty]] as specified in 9.4.2.1.
+       // 8. Set A.[[Prototype]] to proto.
+       // 9. Set A.[[Extensible]] to true.
+       // 10. Perform ! OrdinaryDefineOwnProperty(A, "length", PropertyDescriptor{[[Value]]: length, [[Writable]]: true, [[Enumerable]]: false, [[Configurable]]: false}).
+       A.length = length;
+       // 11. Return A.
+       return A;
+}
+
+// _ESAbstract.Call
+/* global IsCallable */
+// 7.3.12. Call ( F, V [ , argumentsList ] )
+function Call(F, V /* [, argumentsList] */) { // eslint-disable-line no-unused-vars
+       // 1. If argumentsList is not present, set argumentsList to a new empty List.
+       var argumentsList = arguments.length > 2 ? arguments[2] : [];
+       // 2. If IsCallable(F) is false, throw a TypeError exception.
+       if (IsCallable(F) === false) {
+               throw new TypeError(Object.prototype.toString.call(F) + 'is not a function.');
+       }
+       // 3. Return ? F.[[Call]](V, argumentsList).
+       return F.apply(V, argumentsList);
+}
+
+// _ESAbstract.Get
+// 7.3.1. Get ( O, P )
+function Get(O, P) { // eslint-disable-line no-unused-vars
+       // 1. Assert: Type(O) is Object.
+       // 2. Assert: IsPropertyKey(P) is true.
+       // 3. Return ? O.[[Get]](P, O).
+       return O[P];
+}
+
+// _ESAbstract.HasProperty
+// 7.3.10. HasProperty ( O, P )
+function HasProperty(O, P) { // eslint-disable-line no-unused-vars
+       // Assert: Type(O) is Object.
+       // Assert: IsPropertyKey(P) is true.
+       // Return ? O.[[HasProperty]](P).
+       return P in O;
+}
+
+// _ESAbstract.IsArray
+// 7.2.2. IsArray ( argument )
+function IsArray(argument) { // eslint-disable-line no-unused-vars
+       // 1. If Type(argument) is not Object, return false.
+       // 2. If argument is an Array exotic object, return true.
+       // 3. If argument is a Proxy exotic object, then
+               // a. If argument.[[ProxyHandler]] is null, throw a TypeError exception.
+               // b. Let target be argument.[[ProxyTarget]].
+               // c. Return ? IsArray(target).
+       // 4. Return false.
+
+       // Polyfill.io - We can skip all the above steps and check the string returned from Object.prototype.toString().
+       return Object.prototype.toString.call(argument) === '[object Array]';
+}
+

 // _ESAbstract.IsCallable
 // 7.2.3. IsCallable ( argument )
 function IsCallable(argument) { // eslint-disable-line no-unused-vars
 // _ESAbstract.IsCallable
 // 7.2.3. IsCallable ( argument )
 function IsCallable(argument) { // eslint-disable-line no-unused-vars


@@ -135,102 +211,105 @@ function IsCallable(argument) { // eslint-disable-line no-unused-vars
        // Polyfill.io - Only function objects have a [[Call]] internal method. This means we can simplify this function to check that the argument has a type of function.
        return typeof argument === 'function';
 }
        // Polyfill.io - Only function objects have a [[Call]] internal method. This means we can simplify this function to check that the argument has a type of function.
        return typeof argument === 'function';
 }

-if (!(// In IE8, defineProperty could only act on DOM elements, so full support
-// for the feature requires the ability to set a property on an arbitrary object
-'defineProperty' in Object && (function() {
-       try {
-               var a = {};
-               Object.defineProperty(a, 'test', {value:42});
-               return true;
-       } catch(e) {
-               return false
-       }
-}()))) {

 
 

-// Object.defineProperty
-(function (nativeDefineProperty) {
+// _ESAbstract.RequireObjectCoercible
+// 7.2.1. RequireObjectCoercible ( argument )
+// The abstract operation ToObject converts argument to a value of type Object according to Table 12:
+// Table 12: ToObject Conversions
+/*
+|----------------------------------------------------------------------------------------------------------------------------------------------------|
+| Argument Type | Result                                                                                                                             |
+|----------------------------------------------------------------------------------------------------------------------------------------------------|
+| Undefined     | Throw a TypeError exception.                                                                                                       |
+| Null          | Throw a TypeError exception.                                                                                                       |
+| Boolean       | Return argument.                                                                                                                   |
+| Number        | Return argument.                                                                                                                   |
+| String        | Return argument.                                                                                                                   |
+| Symbol        | Return argument.                                                                                                                   |
+| Object        | Return argument.                                                                                                                   |
+|----------------------------------------------------------------------------------------------------------------------------------------------------|
+*/
+function RequireObjectCoercible(argument) { // eslint-disable-line no-unused-vars
+       if (argument === null || argument === undefined) {
+               throw TypeError();
+       }
+  return argument;
+}

 
 

-       var supportsAccessors = Object.prototype.hasOwnProperty('__defineGetter__');
-       var ERR_ACCESSORS_NOT_SUPPORTED = 'Getters & setters cannot be defined on this javascript engine';
-       var ERR_VALUE_ACCESSORS = 'A property cannot both have accessors and be writable or have a value';
+// _ESAbstract.SameValueNonNumber
+// 7.2.12. SameValueNonNumber ( x, y )
+function SameValueNonNumber(x, y) { // eslint-disable-line no-unused-vars
+       // 1. Assert: Type(x) is not Number.
+       // 2. Assert: Type(x) is the same as Type(y).
+       // 3. If Type(x) is Undefined, return true.
+       // 4. If Type(x) is Null, return true.
+       // 5. If Type(x) is String, then
+               // a. If x and y are exactly the same sequence of code units (same length and same code units at corresponding indices), return true; otherwise, return false.
+       // 6. If Type(x) is Boolean, then
+               // a. If x and y are both true or both false, return true; otherwise, return false.
+       // 7. If Type(x) is Symbol, then
+               // a. If x and y are both the same Symbol value, return true; otherwise, return false.
+       // 8. If x and y are the same Object value, return true. Otherwise, return false.

 
 

-       // Polyfill.io - This does not use CreateMethodProperty because our CreateMethodProperty function uses Object.defineProperty.
-       Object['defineProperty'] = function defineProperty(object, property, descriptor) {
+       // Polyfill.io - We can skip all above steps because the === operator does it all for us.
+       return x === y;
+}

 
 

-               // Where native support exists, assume it
-               if (nativeDefineProperty && (object === window || object === document || object === Element.prototype || object instanceof Element)) {
-                       return nativeDefineProperty(object, property, descriptor);
-               }
-
-               if (object === null || !(object instanceof Object || typeof object === 'object')) {
-                       throw new TypeError('Object.defineProperty called on non-object');
-               }
-
-               if (!(descriptor instanceof Object)) {
-                       throw new TypeError('Property description must be an object');
-               }
-
-               var propertyString = String(property);
-               var hasValueOrWritable = 'value' in descriptor || 'writable' in descriptor;
-               var getterType = 'get' in descriptor && typeof descriptor.get;
-               var setterType = 'set' in descriptor && typeof descriptor.set;
-
-               // handle descriptor.get
-               if (getterType) {
-                       if (getterType !== 'function') {
-                               throw new TypeError('Getter must be a function');
-                       }
-                       if (!supportsAccessors) {
-                               throw new TypeError(ERR_ACCESSORS_NOT_SUPPORTED);
-                       }
-                       if (hasValueOrWritable) {
-                               throw new TypeError(ERR_VALUE_ACCESSORS);
-                       }
-                       Object.__defineGetter__.call(object, propertyString, descriptor.get);
-               } else {
-                       object[propertyString] = descriptor.value;
-               }
-
-               // handle descriptor.set
-               if (setterType) {
-                       if (setterType !== 'function') {
-                               throw new TypeError('Setter must be a function');
-                       }
-                       if (!supportsAccessors) {
-                               throw new TypeError(ERR_ACCESSORS_NOT_SUPPORTED);
-                       }
-                       if (hasValueOrWritable) {
-                               throw new TypeError(ERR_VALUE_ACCESSORS);
-                       }
-                       Object.__defineSetter__.call(object, propertyString, descriptor.set);
-               }
-
-               // OK to define value unconditionally - if a getter has been specified as well, an error would be thrown above
-               if ('value' in descriptor) {
-                       object[propertyString] = descriptor.value;
-               }
-
-               return object;
-       };
-}(Object.defineProperty));
+// _ESAbstract.ToBoolean
+// 7.1.2. ToBoolean ( argument )
+// The abstract operation ToBoolean converts argument to a value of type Boolean according to Table 9:
+/*
+--------------------------------------------------------------------------------------------------------------
+| Argument Type | Result                                                                                     |
+--------------------------------------------------------------------------------------------------------------
+| Undefined     | Return false.                                                                              |
+| Null          | Return false.                                                                              |
+| Boolean       | Return argument.                                                                           |
+| Number        | If argument is +0, -0, or NaN, return false; otherwise return true.                        |
+| String        | If argument is the empty String (its length is zero), return false; otherwise return true. |
+| Symbol        | Return true.                                                                               |
+| Object        | Return true.                                                                               |
+--------------------------------------------------------------------------------------------------------------
+*/
+function ToBoolean(argument) { // eslint-disable-line no-unused-vars
+       return Boolean(argument);
+}

 
 

+// _ESAbstract.ToInteger
+// 7.1.4. ToInteger ( argument )
+function ToInteger(argument) { // eslint-disable-line no-unused-vars
+       // 1. Let number be ? ToNumber(argument).
+       var number = Number(argument);
+       // 2. If number is NaN, return +0.
+       if (isNaN(number)) {
+               return 0;
+       }
+       // 3. If number is +0, -0, +∞, or -∞, return number.
+       if (1/number === Infinity || 1/number === -Infinity || number === Infinity || number === -Infinity) {
+               return number;
+       }
+       // 4. Return the number value that is the same sign as number and whose magnitude is floor(abs(number)).
+       return ((number < 0) ? -1 : 1) * Math.floor(Math.abs(number));

 }
 
 }
 

+// _ESAbstract.ToLength
+/* global ToInteger */
+// 7.1.15. ToLength ( argument )
+function ToLength(argument) { // eslint-disable-line no-unused-vars
+       // 1. Let len be ? ToInteger(argument).
+       var len = ToInteger(argument);
+       // 2. If len ≤ +0, return +0.
+       if (len <= 0) {
+               return 0;
+       }
+       // 3. Return min(len, 253-1).
+       return Math.min(len, Math.pow(2, 53) -1);
+}

 
 

-// _ESAbstract.CreateMethodProperty
-// 7.3.5. CreateMethodProperty ( O, P, V )
-function CreateMethodProperty(O, P, V) { // eslint-disable-line no-unused-vars
-       // 1. Assert: Type(O) is Object.
-       // 2. Assert: IsPropertyKey(P) is true.
-       // 3. Let newDesc be the PropertyDescriptor{[[Value]]: V, [[Writable]]: true, [[Enumerable]]: false, [[Configurable]]: true}.
-       var newDesc = {
-               value: V,
-               writable: true,
-               enumerable: false,
-               configurable: true
-       };
-       // 4. Return ? O.[[DefineOwnProperty]](P, newDesc).
-       Object.defineProperty(O, P, newDesc);
+// _ESAbstract.ToNumber
+// 7.1.3. ToNumber ( argument )
+function ToNumber(argument) { // eslint-disable-line no-unused-vars
+       return Number(argument);

 }
 
 // _ESAbstract.ToObject
 }
 
 // _ESAbstract.ToObject


@@ -287,67 +366,21 @@ function GetMethod(V, P) { // eslint-disable-line no-unused-vars
        return func;
 }
 
        return func;
 }
 

-// _ESAbstract.ToInteger
-// 7.1.4. ToInteger ( argument )
-function ToInteger(argument) { // eslint-disable-line no-unused-vars
+// _ESAbstract.ToUint32
+// 7.1.6. ToUint32 ( argument )
+function ToUint32(argument) { // eslint-disable-line no-unused-vars

        // 1. Let number be ? ToNumber(argument).
        var number = Number(argument);
        // 1. Let number be ? ToNumber(argument).
        var number = Number(argument);

-       // 2. If number is NaN, return +0.
-       if (isNaN(number)) {
-               return 0;
-       }
-       // 3. If number is +0, -0, +∞, or -∞, return number.
-       if (1/number === Infinity || 1/number === -Infinity || number === Infinity || number === -Infinity) {
-               return number;
-       }
-       // 4. Return the number value that is the same sign as number and whose magnitude is floor(abs(number)).
-       return ((number < 0) ? -1 : 1) * Math.floor(Math.abs(number));
-}
-
-// _ESAbstract.ToLength
-/* global ToInteger */
-// 7.1.15. ToLength ( argument )
-function ToLength(argument) { // eslint-disable-line no-unused-vars
-       // 1. Let len be ? ToInteger(argument).
-       var len = ToInteger(argument);
-       // 2. If len ≤ +0, return +0.
-       if (len <= 0) {
+       // 2. If number is NaN, +0, -0, +∞, or -∞, return +0.
+       if (isNaN(number) || 1/number === Infinity || 1/number === -Infinity || number === Infinity || number === -Infinity) {

                return 0;
        }
                return 0;
        }

-       // 3. Return min(len, 253-1).
-       return Math.min(len, Math.pow(2, 53) -1);
-}
-
-// _ESAbstract.Get
-// 7.3.1. Get ( O, P )
-function Get(O, P) { // eslint-disable-line no-unused-vars
-       // 1. Assert: Type(O) is Object.
-       // 2. Assert: IsPropertyKey(P) is true.
-       // 3. Return ? O.[[Get]](P, O).
-       return O[P];
-}
-
-// _ESAbstract.HasProperty
-// 7.3.10. HasProperty ( O, P )
-function HasProperty(O, P) { // eslint-disable-line no-unused-vars
-       // Assert: Type(O) is Object.
-       // Assert: IsPropertyKey(P) is true.
-       // Return ? O.[[HasProperty]](P).
-       return P in O;
-}
-
-// _ESAbstract.Call
-/* global IsCallable */
-// 7.3.12. Call ( F, V [ , argumentsList ] )
-function Call(F, V /* [, argumentsList] */) { // eslint-disable-line no-unused-vars
-       // 1. If argumentsList is not present, set argumentsList to a new empty List.
-       var argumentsList = arguments.length > 2 ? arguments[2] : [];
-       // 2. If IsCallable(F) is false, throw a TypeError exception.
-       if (IsCallable(F) === false) {
-               throw new TypeError(Object.prototype.toString.call(F) + 'is not a function.');
-       }
-       // 3. Return ? F.[[Call]](V, argumentsList).
-       return F.apply(V, argumentsList);
+       // 3. Let int be the mathematical value that is the same sign as number and whose magnitude is floor(abs(number)).
+       var int = ((number < 0) ? -1 : 1) * Math.floor(Math.abs(number));
+       // 4. Let int32bit be int modulo 2^32.
+       var int32bit = int >>> 0;
+       // 5. Return int32bit.
+       return int32bit;

 }
 
 // _ESAbstract.Type
 }
 
 // _ESAbstract.Type


@@ -373,5476 +406,5788 @@ function Type(x) { // eslint-disable-line no-unused-vars
        }
 }
 
        }
 }
 

-// _ESAbstract.OrdinaryToPrimitive
-/* global Get, IsCallable, Call, Type */
-// 7.1.1.1. OrdinaryToPrimitive ( O, hint )
-function OrdinaryToPrimitive(O, hint) { // eslint-disable-line no-unused-vars
-       // 1. Assert: Type(O) is Object.
-       // 2. Assert: Type(hint) is String and its value is either "string" or "number".
-       // 3. If hint is "string", then
-       if (hint === 'string') {
-               // a. Let methodNames be « "toString", "valueOf" ».
-               var methodNames = ['toString', 'valueOf'];
-               // 4. Else,
-       } else {
-               // a. Let methodNames be « "valueOf", "toString" ».
-               methodNames = ['valueOf', 'toString'];
-       }
-       // 5. For each name in methodNames in List order, do
-       for (var i = 0; i < methodNames.length; ++i) {
-               var name = methodNames[i];
-               // a. Let method be ? Get(O, name).
-               var method = Get(O, name);
-               // b. If IsCallable(method) is true, then
-               if (IsCallable(method)) {
-                       // i. Let result be ? Call(method, O).
-                       var result = Call(method, O);
-                       // ii. If Type(result) is not Object, return result.
-                       if (Type(result) !== 'object') {
-                               return result;
-                       }
-               }
+// _ESAbstract.GetPrototypeFromConstructor
+/* global Get, Type */
+// 9.1.14. GetPrototypeFromConstructor ( constructor, intrinsicDefaultProto )
+function GetPrototypeFromConstructor(constructor, intrinsicDefaultProto) { // eslint-disable-line no-unused-vars
+       // 1. Assert: intrinsicDefaultProto is a String value that is this specification's name of an intrinsic object. The corresponding object must be an intrinsic that is intended to be used as the [[Prototype]] value of an object.
+       // 2. Assert: IsCallable(constructor) is true.
+       // 3. Let proto be ? Get(constructor, "prototype").
+       var proto = Get(constructor, "prototype");
+       // 4. If Type(proto) is not Object, then
+       if (Type(proto) !== 'object') {
+               // a. Let realm be ? GetFunctionRealm(constructor).
+               // b. Set proto to realm's intrinsic object named intrinsicDefaultProto.
+               proto = intrinsicDefaultProto;

        }
        }

-       // 6. Throw a TypeError exception.
-       throw new TypeError('Cannot convert to primitive.');
+       // 5. Return proto.
+       return proto;

 }
 
 }
 

-// _ESAbstract.ToPrimitive
-/* global Type, GetMethod, Call, OrdinaryToPrimitive */
-// 7.1.1. ToPrimitive ( input [ , PreferredType ] )
-function ToPrimitive(input /* [, PreferredType] */) { // eslint-disable-line no-unused-vars
-       var PreferredType = arguments.length > 1 ? arguments[1] : undefined;
-       // 1. Assert: input is an ECMAScript language value.
-       // 2. If Type(input) is Object, then
-       if (Type(input) === 'object') {
-               // a. If PreferredType is not present, let hint be "default".
-               if (arguments.length < 2) {
-                       var hint = 'default';
-                       // b. Else if PreferredType is hint String, let hint be "string".
-               } else if (PreferredType === String) {
-                       hint = 'string';
-                       // c. Else PreferredType is hint Number, let hint be "number".
-               } else if (PreferredType === Number) {
-                       hint = 'number';
-               }
-               // d. Let exoticToPrim be ? GetMethod(input, @@toPrimitive).
-               var exoticToPrim = typeof this.Symbol === 'function' && typeof this.Symbol.toPrimitive === 'symbol' ? GetMethod(input, this.Symbol.toPrimitive) : undefined;
-               // e. If exoticToPrim is not undefined, then
-               if (exoticToPrim !== undefined) {
-                       // i. Let result be ? Call(exoticToPrim, input, « hint »).
-                       var result = Call(exoticToPrim, input, [hint]);
-                       // ii. If Type(result) is not Object, return result.
-                       if (Type(result) !== 'object') {
-                               return result;
-                       }
-                       // iii. Throw a TypeError exception.
-                       throw new TypeError('Cannot convert exotic object to primitive.');
-               }
-               // f. If hint is "default", set hint to "number".
-               if (hint === 'default') {
-                       hint = 'number';
-               }
-               // g. Return ? OrdinaryToPrimitive(input, hint).
-               return OrdinaryToPrimitive(input, hint);
+// _ESAbstract.IsConstructor
+/* global Type */
+// 7.2.4. IsConstructor ( argument )
+function IsConstructor(argument) { // eslint-disable-line no-unused-vars
+       // 1. If Type(argument) is not Object, return false.
+       if (Type(argument) !== 'object') {
+               return false;

        }
        }

-       // 3. Return input
-       return input;
-}
+       // 2. If argument has a [[Construct]] internal method, return true.
+       // 3. Return false.

 
 

-// _ESAbstract.ToString
-/* global Type, ToPrimitive */
-// 7.1.12. ToString ( argument )
-// The abstract operation ToString converts argument to a value of type String according to Table 11:
-// Table 11: ToString Conversions
-/*
-|---------------|--------------------------------------------------------|
-| Argument Type | Result                                                 |
-|---------------|--------------------------------------------------------|
-| Undefined     | Return "undefined".                                    |
-|---------------|--------------------------------------------------------|
-| Null         | Return "null".                                         |
-|---------------|--------------------------------------------------------|
-| Boolean       | If argument is true, return "true".                    |
-|               | If argument is false, return "false".                  |
-|---------------|--------------------------------------------------------|
-| Number        | Return NumberToString(argument).                       |
-|---------------|--------------------------------------------------------|
-| String        | Return argument.                                       |
-|---------------|--------------------------------------------------------|
-| Symbol        | Throw a TypeError exception.                           |
-|---------------|--------------------------------------------------------|
-| Object        | Apply the following steps:                             |
-|               | Let primValue be ? ToPrimitive(argument, hint String). |
-|               | Return ? ToString(primValue).                          |
-|---------------|--------------------------------------------------------|
-*/
-function ToString(argument) { // eslint-disable-line no-unused-vars
-       switch(Type(argument)) {
-               case 'symbol':
-                       throw new TypeError('Cannot convert a Symbol value to a string');
-                       break;
-               case 'object':
-                       var primValue = ToPrimitive(argument, 'string');
-                       return ToString(primValue);
-               default:
-                       return String(argument);
-       }
+       // Polyfill.io - `new argument` is the only way  to truly test if a function is a constructor.
+       // We choose to not use`new argument` because the argument could have side effects when called.
+       // Instead we check to see if the argument is a function and if it has a prototype.
+       // Arrow functions do not have a [[Construct]] internal method, nor do they have a prototype.
+       return typeof argument === 'function' && !!argument.prototype;

 }
 }

-if (!('forEach' in Array.prototype)) {

 
 

-// Array.prototype.forEach
-/* global Call, CreateMethodProperty, Get, HasProperty, IsCallable, ToLength, ToObject, ToString */
-// 22.1.3.10. Array.prototype.forEach ( callbackfn [ , thisArg ] )
-CreateMethodProperty(Array.prototype, 'forEach', function forEach(callbackfn /* [ , thisArg ] */) {
-       // 1. Let O be ? ToObject(this value).
-       var O = ToObject(this);
-       // Polyfill.io - If O is a String object, split it into an array in order to iterate correctly.
-       // We will use arrayLike in place of O when we are iterating through the list.
-       var arraylike = O instanceof String ? O.split('') : O;
-       // 2. Let len be ? ToLength(? Get(O, "length")).
-       var len = ToLength(Get(O, "length"));
-       // 3. If IsCallable(callbackfn) is false, throw a TypeError exception.
-       if (IsCallable(callbackfn) === false) {
-               throw new TypeError(callbackfn + ' is not a function');
+// _ESAbstract.IsRegExp
+/* global Type, Get, ToBoolean */
+// 7.2.8. IsRegExp ( argument )
+function IsRegExp(argument) { // eslint-disable-line no-unused-vars
+       // 1. If Type(argument) is not Object, return false.
+       if (Type(argument) !== 'object') {
+               return false;

        }
        }

-       // 4. If thisArg is present, let T be thisArg; else let T be undefined.
-       var T = arguments.length > 1 ? arguments[1] : undefined;
-       // 5. Let k be 0.
-       var k = 0;
-       // 6. Repeat, while k < len
-       while (k < len) {
-               // a. Let Pk be ! ToString(k).
-               var Pk = ToString(k);
-               // b. Let kPresent be ? HasProperty(O, Pk).
-               var kPresent = HasProperty(arraylike, Pk);
-               // c. If kPresent is true, then
-               if (kPresent) {
-                       // i. Let kValue be ? Get(O, Pk).
-                       var kValue = Get(arraylike, Pk);
-                       // ii. Perform ? Call(callbackfn, T, « kValue, k, O »).
-                       Call(callbackfn, T, [kValue, k, O]);
-               }
-               // d. Increase k by 1.
-               k = k + 1;
+       // 2. Let matcher be ? Get(argument, @@match).
+       var matcher = 'Symbol' in this && 'match' in this.Symbol ? Get(argument, this.Symbol.match) : undefined;
+       // 3. If matcher is not undefined, return ToBoolean(matcher).
+       if (matcher !== undefined) {
+               return ToBoolean(matcher);

        }
        }

-       // 7. Return undefined.
-       return undefined;
-});
-
+       // 4. If argument has a [[RegExpMatcher]] internal slot, return true.
+       try {
+               var lastIndex = argument.lastIndex;
+               argument.lastIndex = 0;
+               RegExp.prototype.exec.call(argument);
+               return true;
+       } catch (e) {} finally {
+               argument.lastIndex = lastIndex;
+       }
+       // 5. Return false.
+       return false;

 }
 
 }
 

+// _ESAbstract.IteratorClose
+/* global GetMethod, Type, Call */
+// 7.4.6. IteratorClose ( iteratorRecord, completion )
+function IteratorClose(iteratorRecord, completion) { // eslint-disable-line no-unused-vars
+       // 1. Assert: Type(iteratorRecord.[[Iterator]]) is Object.
+       if (Type(iteratorRecord['[[Iterator]]']) !== 'object') {
+               throw new Error(Object.prototype.toString.call(iteratorRecord['[[Iterator]]']) + 'is not an Object.');
+       }
+       // 2. Assert: completion is a Completion Record.
+       // Polyfill.io - Ignoring this step as there is no way to check if something is a Completion Record in userland JavaScript.

 
 

-// _ESAbstract.IsArray
-// 7.2.2. IsArray ( argument )
-function IsArray(argument) { // eslint-disable-line no-unused-vars
-       // 1. If Type(argument) is not Object, return false.
-       // 2. If argument is an Array exotic object, return true.
-       // 3. If argument is a Proxy exotic object, then
-               // a. If argument.[[ProxyHandler]] is null, throw a TypeError exception.
-               // b. Let target be argument.[[ProxyTarget]].
-               // c. Return ? IsArray(target).
-       // 4. Return false.
+       // 3. Let iterator be iteratorRecord.[[Iterator]].
+       var iterator = iteratorRecord['[[Iterator]]'];
+       // 4. Let return be ? GetMethod(iterator, "return").
+       // Polyfill.io - We name it  returnMethod because return is a keyword and can not be used as an identifier (E.G. variable name, function name etc).
+       var returnMethod = GetMethod(iterator, "return");
+       // 5. If return is undefined, return Completion(completion).
+       if (returnMethod === undefined) {
+               return completion;
+       }
+       // 6. Let innerResult be Call(return, iterator, « »).
+       try {
+               var innerResult = Call(returnMethod, iterator);
+       } catch (error) {
+               var innerException = error;
+       }
+       // 7. If completion.[[Type]] is throw, return Completion(completion).
+       if (completion) {
+               return completion;
+       }
+       // 8. If innerResult.[[Type]] is throw, return Completion(innerResult).
+       if (innerException) {
+               throw innerException;
+       }
+       // 9. If Type(innerResult.[[Value]]) is not Object, throw a TypeError exception.
+       if (Type(innerResult) !== 'object') {
+               throw new TypeError("Iterator's return method returned a non-object.");
+       }
+       // 10. Return Completion(completion).
+       return completion;
+}

 
 

-       // Polyfill.io - We can skip all the above steps and check the string returned from Object.prototype.toString().
-       return Object.prototype.toString.call(argument) === '[object Array]';
+// _ESAbstract.IteratorComplete
+/* global Type, ToBoolean, Get */
+// 7.4.3 IteratorComplete ( iterResult )
+function IteratorComplete(iterResult) { // eslint-disable-line no-unused-vars
+       // 1. Assert: Type(iterResult) is Object.
+       if (Type(iterResult) !== 'object') {
+               throw new Error(Object.prototype.toString.call(iterResult) + 'is not an Object.');
+       }
+       // 2. Return ToBoolean(? Get(iterResult, "done")).
+       return ToBoolean(Get(iterResult, "done"));

 }
 
 }
 

-// _ESAbstract.ArrayCreate
-// 9.4.2.2. ArrayCreate ( length [ , proto ] )
-function ArrayCreate(length /* [, proto] */) { // eslint-disable-line no-unused-vars
-       // 1. Assert: length is an integer Number ≥ 0.
-       // 2. If length is -0, set length to +0.
-       if (1 / length === -Infinity) {
-               length = 0;
+// _ESAbstract.IteratorNext
+/* global Call, Type */
+// 7.4.2. IteratorNext ( iteratorRecord [ , value ] )
+function IteratorNext(iteratorRecord /* [, value] */) { // eslint-disable-line no-unused-vars
+       // 1. If value is not present, then
+       if (arguments.length < 2) {
+               // a. Let result be ? Call(iteratorRecord.[[NextMethod]], iteratorRecord.[[Iterator]], « »).
+               var result = Call(iteratorRecord['[[NextMethod]]'], iteratorRecord['[[Iterator]]']);
+       // 2. Else,
+       } else {
+               // a. Let result be ? Call(iteratorRecord.[[NextMethod]], iteratorRecord.[[Iterator]], « value »).
+               result = Call(iteratorRecord['[[NextMethod]]'], iteratorRecord['[[Iterator]]'], [arguments[1]]);

        }
        }

-       // 3. If length>2^32-1, throw a RangeError exception.
-       if (length > (Math.pow(2, 32) - 1)) {
-               throw new RangeError('Invalid array length');
+       // 3. If Type(result) is not Object, throw a TypeError exception.
+       if (Type(result) !== 'object') {
+               throw new TypeError('bad iterator');

        }
        }

-       // 4. If proto is not present, set proto to the intrinsic object %ArrayPrototype%.
-       // 5. Let A be a newly created Array exotic object.
-       var A = [];
-       // 6. Set A's essential internal methods except for [[DefineOwnProperty]] to the default ordinary object definitions specified in 9.1.
-       // 7. Set A.[[DefineOwnProperty]] as specified in 9.4.2.1.
-       // 8. Set A.[[Prototype]] to proto.
-       // 9. Set A.[[Extensible]] to true.
-       // 10. Perform ! OrdinaryDefineOwnProperty(A, "length", PropertyDescriptor{[[Value]]: length, [[Writable]]: true, [[Enumerable]]: false, [[Configurable]]: false}).
-       A.length = length;
-       // 11. Return A.
-       return A;
+       // 4. Return result.
+       return result;

 }
 
 }
 

-// _ESAbstract.IsConstructor
-/* global Type */
-// 7.2.4. IsConstructor ( argument )
-function IsConstructor(argument) { // eslint-disable-line no-unused-vars
-       // 1. If Type(argument) is not Object, return false.
-       if (Type(argument) !== 'object') {
+// _ESAbstract.IteratorStep
+/* global IteratorNext, IteratorComplete */
+// 7.4.5. IteratorStep ( iteratorRecord )
+function IteratorStep(iteratorRecord) { // eslint-disable-line no-unused-vars
+       // 1. Let result be ? IteratorNext(iteratorRecord).
+       var result = IteratorNext(iteratorRecord);
+       // 2. Let done be ? IteratorComplete(result).
+       var done = IteratorComplete(result);
+       // 3. If done is true, return false.
+       if (done === true) {

                return false;
        }
                return false;
        }

-       // 2. If argument has a [[Construct]] internal method, return true.
-       // 3. Return false.
-
-       // Polyfill.io - `new argument` is the only way  to truly test if a function is a constructor.
-       // We choose to not use`new argument` because the argument could have side effects when called.
-       // Instead we check to see if the argument is a function and if it has a prototype.
-       // Arrow functions do not have a [[Construct]] internal method, nor do they have a prototype.
-       return typeof argument === 'function' && !!argument.prototype;
+       // 4. Return result.
+       return result;

 }
 
 }
 

-// _ESAbstract.GetPrototypeFromConstructor
-/* global Get, Type */
-// 9.1.14. GetPrototypeFromConstructor ( constructor, intrinsicDefaultProto )
-function GetPrototypeFromConstructor(constructor, intrinsicDefaultProto) { // eslint-disable-line no-unused-vars
-       // 1. Assert: intrinsicDefaultProto is a String value that is this specification's name of an intrinsic object. The corresponding object must be an intrinsic that is intended to be used as the [[Prototype]] value of an object.
-       // 2. Assert: IsCallable(constructor) is true.
-       // 3. Let proto be ? Get(constructor, "prototype").
-       var proto = Get(constructor, "prototype");
-       // 4. If Type(proto) is not Object, then
-       if (Type(proto) !== 'object') {
-               // a. Let realm be ? GetFunctionRealm(constructor).
-               // b. Set proto to realm's intrinsic object named intrinsicDefaultProto.
-               proto = intrinsicDefaultProto;
+// _ESAbstract.IteratorValue
+/* global Type, Get */
+// 7.4.4 IteratorValue ( iterResult )
+function IteratorValue(iterResult) { // eslint-disable-line no-unused-vars
+       // Assert: Type(iterResult) is Object.
+       if (Type(iterResult) !== 'object') {
+               throw new Error(Object.prototype.toString.call(iterResult) + 'is not an Object.');

        }
        }

-       // 5. Return proto.
-       return proto;
+       // Return ? Get(iterResult, "value").
+       return Get(iterResult, "value");

 }
 }

-if (!('keys' in Object && (function () {
-       // Safari 5.0 bug where Object.keys doesn't work with arguments
-       return (Object.keys(arguments)).length === 2;
-}(1, 2)) && (function () {
-       try {
-               // In ES6 Object.keys works on all object except `null` and `undefined`.
-               Object.keys('');
-               return true;
-       } catch (e) {
-               return false;
-       }
-}()))) {
-
-// Object.keys
-Object.keys = (function() {
-       'use strict';
-
-       // modified from https://github.com/es-shims/object-keys

 
 

-       var has = Object.prototype.hasOwnProperty;
-       var toStr = Object.prototype.toString;
-       var isEnumerable = Object.prototype.propertyIsEnumerable;
-       var hasDontEnumBug = !isEnumerable.call({ toString: null }, 'toString');
-       var hasProtoEnumBug = isEnumerable.call(function () {}, 'prototype');
-       var dontEnums = [
-               'toString',
-               'toLocaleString',
-               'valueOf',
-               'hasOwnProperty',
-               'isPrototypeOf',
-               'propertyIsEnumerable',
-               'constructor'
-       ];
-       var equalsConstructorPrototype = function (o) {
-               var ctor = o.constructor;
-               return ctor && ctor.prototype === o;
-       };
-       var excludedKeys = {
-               $console: true,
-               $external: true,
-               $frame: true,
-               $frameElement: true,
-               $frames: true,
-               $innerHeight: true,
-               $innerWidth: true,
-               $outerHeight: true,
-               $outerWidth: true,
-               $pageXOffset: true,
-               $pageYOffset: true,
-               $parent: true,
-               $scrollLeft: true,
-               $scrollTop: true,
-               $scrollX: true,
-               $scrollY: true,
-               $self: true,
-               $webkitIndexedDB: true,
-               $webkitStorageInfo: true,
-               $window: true
-       };
-       var hasAutomationEqualityBug = (function () {
-               /* global window */
-               if (typeof window === 'undefined') { return false; }
-               for (var k in window) {
-                       try {
-                               if (!excludedKeys['$' + k] && has.call(window, k) && window[k] !== null && typeof window[k] === 'object') {
-                                       try {
-                                               equalsConstructorPrototype(window[k]);
-                                       } catch (e) {
-                                               return true;
-                                       }
-                               }
-                       } catch (e) {
-                               return true;
+// _ESAbstract.OrdinaryToPrimitive
+/* global Get, IsCallable, Call, Type */
+// 7.1.1.1. OrdinaryToPrimitive ( O, hint )
+function OrdinaryToPrimitive(O, hint) { // eslint-disable-line no-unused-vars
+       // 1. Assert: Type(O) is Object.
+       // 2. Assert: Type(hint) is String and its value is either "string" or "number".
+       // 3. If hint is "string", then
+       if (hint === 'string') {
+               // a. Let methodNames be « "toString", "valueOf" ».
+               var methodNames = ['toString', 'valueOf'];
+               // 4. Else,
+       } else {
+               // a. Let methodNames be « "valueOf", "toString" ».
+               methodNames = ['valueOf', 'toString'];
+       }
+       // 5. For each name in methodNames in List order, do
+       for (var i = 0; i < methodNames.length; ++i) {
+               var name = methodNames[i];
+               // a. Let method be ? Get(O, name).
+               var method = Get(O, name);
+               // b. If IsCallable(method) is true, then
+               if (IsCallable(method)) {
+                       // i. Let result be ? Call(method, O).
+                       var result = Call(method, O);
+                       // ii. If Type(result) is not Object, return result.
+                       if (Type(result) !== 'object') {
+                               return result;

                        }
                }
                        }
                }

+       }
+       // 6. Throw a TypeError exception.
+       throw new TypeError('Cannot convert to primitive.');
+}
+
+// _ESAbstract.SameValue
+/* global Type, SameValueNonNumber */
+// 7.2.10. SameValue ( x, y )
+function SameValue(x, y) { // eslint-disable-line no-unused-vars
+       // 1. If Type(x) is different from Type(y), return false.
+       if (Type(x) !== Type(y)) {

                return false;
                return false;

-       }());
-       var equalsConstructorPrototypeIfNotBuggy = function (o) {
-               /* global window */
-               if (typeof window === 'undefined' || !hasAutomationEqualityBug) {
-                       return equalsConstructorPrototype(o);
+       }
+       // 2. If Type(x) is Number, then
+       if (Type(x) === 'number') {
+               // a. If x is NaN and y is NaN, return true.
+               if (isNaN(x) && isNaN(y)) {
+                       return true;

                }
                }

-               try {
-                       return equalsConstructorPrototype(o);
-               } catch (e) {
+               // Polyfill.io - 0 === -0 is true, but they are not the same value.
+               // b. If x is +0 and y is -0, return false.
+               // c. If x is -0 and y is +0, return false.
+               if (x === 0 && y === 0 && 1/x !== 1/y) {

                        return false;
                }
                        return false;
                }

-       };
-
-       function isArgumentsObject(value) {
-               var str = toStr.call(value);
-               var isArgs = str === '[object Arguments]';
-               if (!isArgs) {
-                       isArgs = str !== '[object Array]' &&
-                               value !== null &&
-                               typeof value === 'object' &&
-                               typeof value.length === 'number' &&
-                               value.length >= 0 &&
-                               toStr.call(value.callee) === '[object Function]';
+               // d. If x is the same Number value as y, return true.
+               if (x === y) {
+                       return true;

                }
                }

-               return isArgs;
+               // e. Return false.
+               return false;

        }
        }

+       // 3. Return SameValueNonNumber(x, y).
+       return SameValueNonNumber(x, y);
+}

 
 

-       return function keys(object) {
-               var isFunction = toStr.call(object) === '[object Function]';
-               var isArguments = isArgumentsObject(object);
-               var isString = toStr.call(object) === '[object String]';
-               var theKeys = [];
-
-               if (object === undefined || object === null) {
-                       throw new TypeError('Cannot convert undefined or null to object');
+// _ESAbstract.SameValueZero
+/* global Type, SameValueNonNumber */
+// 7.2.11. SameValueZero ( x, y )
+function SameValueZero (x, y) { // eslint-disable-line no-unused-vars
+       // 1. If Type(x) is different from Type(y), return false.
+       if (Type(x) !== Type(y)) {
+               return false;
+       }
+       // 2. If Type(x) is Number, then
+       if (Type(x) === 'number') {
+               // a. If x is NaN and y is NaN, return true.
+               if (isNaN(x) && isNaN(y)) {
+                       return true;

                }
                }

-
-               var skipProto = hasProtoEnumBug && isFunction;
-               if (isString && object.length > 0 && !has.call(object, 0)) {
-                       for (var i = 0; i < object.length; ++i) {
-                               theKeys.push(String(i));
-                       }
+               // b. If x is +0 and y is -0, return true.
+               if (1/x === Infinity && 1/y === -Infinity) {
+                       return true;

                }
                }

-
-               if (isArguments && object.length > 0) {
-                       for (var j = 0; j < object.length; ++j) {
-                               theKeys.push(String(j));
-                       }
-               } else {
-                       for (var name in object) {
-                               if (!(skipProto && name === 'prototype') && has.call(object, name)) {
-                                       theKeys.push(String(name));
-                               }
-                       }
+               // c. If x is -0 and y is +0, return true.
+               if (1/x === -Infinity && 1/y === Infinity) {
+                       return true;

                }
                }

+               // d. If x is the same Number value as y, return true.
+               if (x === y) {
+                       return true;
+               }
+               // e. Return false.
+               return false;
+       }
+       // 3. Return SameValueNonNumber(x, y).
+       return SameValueNonNumber(x, y);
+}

 
 

-               if (hasDontEnumBug) {
-                       var skipConstructor = equalsConstructorPrototypeIfNotBuggy(object);
-
-                       for (var k = 0; k < dontEnums.length; ++k) {
-                               if (!(skipConstructor && dontEnums[k] === 'constructor') && has.call(object, dontEnums[k])) {
-                                       theKeys.push(dontEnums[k]);
-                               }
+// _ESAbstract.ToPrimitive
+/* global Type, GetMethod, Call, OrdinaryToPrimitive */
+// 7.1.1. ToPrimitive ( input [ , PreferredType ] )
+function ToPrimitive(input /* [, PreferredType] */) { // eslint-disable-line no-unused-vars
+       var PreferredType = arguments.length > 1 ? arguments[1] : undefined;
+       // 1. Assert: input is an ECMAScript language value.
+       // 2. If Type(input) is Object, then
+       if (Type(input) === 'object') {
+               // a. If PreferredType is not present, let hint be "default".
+               if (arguments.length < 2) {
+                       var hint = 'default';
+                       // b. Else if PreferredType is hint String, let hint be "string".
+               } else if (PreferredType === String) {
+                       hint = 'string';
+                       // c. Else PreferredType is hint Number, let hint be "number".
+               } else if (PreferredType === Number) {
+                       hint = 'number';
+               }
+               // d. Let exoticToPrim be ? GetMethod(input, @@toPrimitive).
+               var exoticToPrim = typeof this.Symbol === 'function' && typeof this.Symbol.toPrimitive === 'symbol' ? GetMethod(input, this.Symbol.toPrimitive) : undefined;
+               // e. If exoticToPrim is not undefined, then
+               if (exoticToPrim !== undefined) {
+                       // i. Let result be ? Call(exoticToPrim, input, « hint »).
+                       var result = Call(exoticToPrim, input, [hint]);
+                       // ii. If Type(result) is not Object, return result.
+                       if (Type(result) !== 'object') {
+                               return result;

                        }
                        }

+                       // iii. Throw a TypeError exception.
+                       throw new TypeError('Cannot convert exotic object to primitive.');

                }
                }

-               return theKeys;
-       };
-}());
-
+               // f. If hint is "default", set hint to "number".
+               if (hint === 'default') {
+                       hint = 'number';
+               }
+               // g. Return ? OrdinaryToPrimitive(input, hint).
+               return OrdinaryToPrimitive(input, hint);
+       }
+       // 3. Return input
+       return input;

 }
 
 }
 

-if (!('bind' in Function.prototype)) {
-
-// Function.prototype.bind
-/* global CreateMethodProperty, IsCallable */
-// 19.2.3.2. Function.prototype.bind ( thisArg, ...args )
-// https://github.com/es-shims/es5-shim/blob/d6d7ff1b131c7ba14c798cafc598bb6780d37d3b/es5-shim.js#L182
-CreateMethodProperty(Function.prototype, 'bind', function bind(that) { // .length is 1
-       // add necessary es5-shim utilities
-       var $Array = Array;
-       var $Object = Object;
-       var ArrayPrototype = $Array.prototype;
-       var Empty = function Empty() { };
-       var array_slice = ArrayPrototype.slice;
-       var array_concat = ArrayPrototype.concat;
-       var array_push = ArrayPrototype.push;
-       var max = Math.max;
-       // /add necessary es5-shim utilities
-
-       // 1. Let Target be the this value.
-       var target = this;
-       // 2. If IsCallable(Target) is false, throw a TypeError exception.
-       if (!IsCallable(target)) {
-               throw new TypeError('Function.prototype.bind called on incompatible ' + target);
+// _ESAbstract.ToString
+/* global Type, ToPrimitive */
+// 7.1.12. ToString ( argument )
+// The abstract operation ToString converts argument to a value of type String according to Table 11:
+// Table 11: ToString Conversions
+/*
+|---------------|--------------------------------------------------------|
+| Argument Type | Result                                                 |
+|---------------|--------------------------------------------------------|
+| Undefined     | Return "undefined".                                    |
+|---------------|--------------------------------------------------------|
+| Null         | Return "null".                                         |
+|---------------|--------------------------------------------------------|
+| Boolean       | If argument is true, return "true".                    |
+|               | If argument is false, return "false".                  |
+|---------------|--------------------------------------------------------|
+| Number        | Return NumberToString(argument).                       |
+|---------------|--------------------------------------------------------|
+| String        | Return argument.                                       |
+|---------------|--------------------------------------------------------|
+| Symbol        | Throw a TypeError exception.                           |
+|---------------|--------------------------------------------------------|
+| Object        | Apply the following steps:                             |
+|               | Let primValue be ? ToPrimitive(argument, hint String). |
+|               | Return ? ToString(primValue).                          |
+|---------------|--------------------------------------------------------|
+*/
+function ToString(argument) { // eslint-disable-line no-unused-vars
+       switch(Type(argument)) {
+               case 'symbol':
+                       throw new TypeError('Cannot convert a Symbol value to a string');
+                       break;
+               case 'object':
+                       var primValue = ToPrimitive(argument, 'string');
+                       return ToString(primValue);
+               default:
+                       return String(argument);

        }
        }

-       // 3. Let A be a new (possibly empty) internal list of all of the
-       //   argument values provided after thisArg (arg1, arg2 etc), in order.
-       // XXX slicedArgs will stand in for "A" if used
-       var args = array_slice.call(arguments, 1); // for normal call
-       // 4. Let F be a new native ECMAScript object.
-       // 11. Set the [[Prototype]] internal property of F to the standard
-       //   built-in Function prototype object as specified in 15.3.3.1.
-       // 12. Set the [[Call]] internal property of F as described in
-       //   15.3.4.5.1.
-       // 13. Set the [[Construct]] internal property of F as described in
-       //   15.3.4.5.2.
-       // 14. Set the [[HasInstance]] internal property of F as described in
-       //   15.3.4.5.3.
-       var bound;
-       var binder = function () {
-
-               if (this instanceof bound) {
-                       // 15.3.4.5.2 [[Construct]]
-                       // When the [[Construct]] internal method of a function object,
-                       // F that was created using the bind function is called with a
-                       // list of arguments ExtraArgs, the following steps are taken:
-                       // 1. Let target be the value of F's [[TargetFunction]]
-                       //   internal property.
-                       // 2. If target has no [[Construct]] internal method, a
-                       //   TypeError exception is thrown.
-                       // 3. Let boundArgs be the value of F's [[BoundArgs]] internal
-                       //   property.
-                       // 4. Let args be a new list containing the same values as the
-                       //   list boundArgs in the same order followed by the same
-                       //   values as the list ExtraArgs in the same order.
-                       // 5. Return the result of calling the [[Construct]] internal
-                       //   method of target providing args as the arguments.
-
-                       var result = target.apply(
-                               this,
-                               array_concat.call(args, array_slice.call(arguments))
-                       );
-                       if ($Object(result) === result) {
-                               return result;
-                       }
-                       return this;
-
-               } else {
-                       // 15.3.4.5.1 [[Call]]
-                       // When the [[Call]] internal method of a function object, F,
-                       // which was created using the bind function is called with a
-                       // this value and a list of arguments ExtraArgs, the following
-                       // steps are taken:
-                       // 1. Let boundArgs be the value of F's [[BoundArgs]] internal
-                       //   property.
-                       // 2. Let boundThis be the value of F's [[BoundThis]] internal
-                       //   property.
-                       // 3. Let target be the value of F's [[TargetFunction]] internal
-                       //   property.
-                       // 4. Let args be a new list containing the same values as the
-                       //   list boundArgs in the same order followed by the same
-                       //   values as the list ExtraArgs in the same order.
-                       // 5. Return the result of calling the [[Call]] internal method
-                       //   of target providing boundThis as the this value and
-                       //   providing args as the arguments.
+}

 
 

-                       // equiv: target.call(this, ...boundArgs, ...args)
-                       return target.apply(
-                               that,
-                               array_concat.call(args, array_slice.call(arguments))
-                       );
+// _ESAbstract.UTF16Decode
+// 10.1.2. Static Semantics: UTF16Decode( lead, trail )
+function UTF16Decode(lead, trail) { // eslint-disable-line no-unused-vars
+       // 1. Assert: 0xD800 ≤ lead ≤ 0xDBFF and 0xDC00 ≤ trail ≤ 0xDFFF.
+       // 2. Let cp be (lead - 0xD800) × 0x400 + (trail - 0xDC00) + 0x10000.
+       var cp = (lead - 0xD800) * 0x400 + (trail - 0xDC00) + 0x10000;
+       // 3. Return the code point cp.
+       return cp;
+}

 
 

-               }
+// _ESAbstract.UTF16Encoding
+// 10.1.1. Static Semantics: UTF16Encoding ( cp )
+function UTF16Encoding(cp) { // eslint-disable-line no-unused-vars
+       // 1. Assert: 0 ≤ cp ≤ 0x10FFFF.
+       // 2. If cp ≤ 0xFFFF, return cp.
+       if (cp <= 0xFFFF) {
+               return cp;
+       } else {
+               // 3. Let cu1 be floor((cp - 0x10000) / 0x400) + 0xD800.
+               var cu1 = Math.floor((cp - 0x10000) / 0x400) + 0xD800;
+               // 4. Let cu2 be ((cp - 0x10000) modulo 0x400) + 0xDC00.
+               var cu2 = ((cp - 0x10000) % 0x400) + 0xDC00;
+               // 5. Return the code unit sequence consisting of cu1 followed by cu2.
+               return [cu1, cu2];
+       }
+}

 
 

-       };
+// _TypedArray
+/*
+ Copyright (c) 2010, Linden Research, Inc.
+ Copyright (c) 2014, Joshua Bell

 
 

-       // 15. If the [[Class]] internal property of Target is "Function", then
-       //     a. Let L be the length property of Target minus the length of A.
-       //     b. Set the length own property of F to either 0 or L, whichever is
-       //       larger.
-       // 16. Else set the length own property of F to 0.
+ Permission is hereby granted, free of charge, to any person obtaining a copy
+ of this software and associated documentation files (the "Software"), to deal
+ in the Software without restriction, including without limitation the rights
+ to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ copies of the Software, and to permit persons to whom the Software is
+ furnished to do so, subject to the following conditions:

 
 

-       var boundLength = max(0, target.length - args.length);
+ The above copyright notice and this permission notice shall be included in
+ all copies or substantial portions of the Software.

 
 

-       // 17. Set the attributes of the length own property of F to the values
-       //   specified in 15.3.5.1.
-       var boundArgs = [];
-       for (var i = 0; i < boundLength; i++) {
-               array_push.call(boundArgs, '$' + i);
-       }
+ THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ THE SOFTWARE.
+ $/LicenseInfo$
+ */

 
 

-       // XXX Build a dynamic function with desired amount of arguments is the only
-       // way to set the length property of a function.
-       // In environments where Content Security Policies enabled (Chrome extensions,
-       // for ex.) all use of eval or Function costructor throws an exception.
-       // However in all of these environments Function.prototype.bind exists
-       // and so this code will never be executed.
-       bound = Function('binder', 'return function (' + boundArgs.join(',') + '){ return binder.apply(this, arguments); }')(binder);
+// Original can be found at:
+//   https://bitbucket.org/lindenlab/llsd
+// Modifications by Joshua Bell inexorabletash@gmail.com
+//   https://github.com/inexorabletash/polyfill

 
 

-       if (target.prototype) {
-               Empty.prototype = target.prototype;
-               bound.prototype = new Empty();
-               // Clean up dangling references.
-               Empty.prototype = null;
-       }
+// ES3/ES5 implementation of the Krhonos Typed Array Specification
+//   Ref: http://www.khronos.org/registry/typedarray/specs/latest/
+//   Date: 2011-02-01
+//
+// Variations:
+//  * Allows typed_array.get/set() as alias for subscripts (typed_array[])
+//  * Gradually migrating structure from Khronos spec to ES2015 spec
+//
+// Caveats:
+//  * Beyond 10000 or so entries, polyfilled array accessors (ta[0],
+//    etc) become memory-prohibitive, so array creation will fail. Set
+//    self.TYPED_ARRAY_POLYFILL_NO_ARRAY_ACCESSORS=true to disable
+//    creation of accessors. Your code will need to use the
+//    non-standard get()/set() instead, and will need to add those to
+//    native arrays for interop.
+(function(global) {
+  'use strict';
+  var undefined = (void 0); // Paranoia

 
 

-       // TODO
-       // 18. Set the [[Extensible]] internal property of F to true.
+  // Beyond this value, index getters/setters (i.e. array[0], array[1]) are so slow to
+  // create, and consume so much memory, that the browser appears frozen.
+  var MAX_ARRAY_LENGTH = 1e5;

 
 

-       // TODO
-       // 19. Let thrower be the [[ThrowTypeError]] function Object (13.2.3).
-       // 20. Call the [[DefineOwnProperty]] internal method of F with
-       //   arguments "caller", PropertyDescriptor {[[Get]]: thrower, [[Set]]:
-       //   thrower, [[Enumerable]]: false, [[Configurable]]: false}, and
-       //   false.
-       // 21. Call the [[DefineOwnProperty]] internal method of F with
-       //   arguments "arguments", PropertyDescriptor {[[Get]]: thrower,
-       //   [[Set]]: thrower, [[Enumerable]]: false, [[Configurable]]: false},
-       //   and false.
+  // Approximations of internal ECMAScript conversion functions
+  function Type(v) {
+    switch(typeof v) {
+    case 'undefined': return 'undefined';
+    case 'boolean': return 'boolean';
+    case 'number': return 'number';
+    case 'string': return 'string';
+    default: return v === null ? 'null' : 'object';
+    }
+  }

 
 

-       // TODO
-       // NOTE Function objects created using Function.prototype.bind do not
-       // have a prototype property or the [[Code]], [[FormalParameters]], and
-       // [[Scope]] internal properties.
-       // XXX can't delete prototype in pure-js.
+  // Class returns internal [[Class]] property, used to avoid cross-frame instanceof issues:
+  function Class(v) { return Object.prototype.toString.call(v).replace(/^\[object *|\]$/g, ''); }
+  function IsCallable(o) { return typeof o === 'function'; }
+  function ToObject(v) {
+    if (v === null || v === undefined) throw TypeError();
+    return Object(v);
+  }
+  function ToInt32(v) { return v >> 0; }
+  function ToUint32(v) { return v >>> 0; }

 
 

-       // 22. Return F.
-       return bound;
-});
+  // Snapshot intrinsics
+  var LN2 = Math.LN2,
+      abs = Math.abs,
+      floor = Math.floor,
+      log = Math.log,
+      max = Math.max,
+      min = Math.min,
+      pow = Math.pow,
+      round = Math.round;

 
 

-}
+  // emulate ES5 getter/setter API using legacy APIs
+  // http://blogs.msdn.com/b/ie/archive/2010/09/07/transitioning-existing-code-to-the-es5-getter-setter-apis.aspx
+  // (second clause tests for Object.defineProperty() in IE<9 that only supports extending DOM prototypes, but
+  // note that IE<9 does not support __defineGetter__ or __defineSetter__ so it just renders the method harmless)

 
 

-if (!('getOwnPropertyDescriptor' in Object && typeof Object.getOwnPropertyDescriptor === 'function' && (function() {
-    try {
-       var object = {};
-        object.test = 0;
-        return Object.getOwnPropertyDescriptor(
-            object,
-            "test"
-        ).value === 0;
-    } catch (exception) {
-        return false
-    }
-}()))) {
+  (function() {
+    var orig = Object.defineProperty;
+    var dom_only = !(function(){try{return Object.defineProperty({},'x',{});}catch(_){return false;}}());

 
 

-// Object.getOwnPropertyDescriptor
-/* global CreateMethodProperty */
-(function () {
-       var call = Function.prototype.call;
-       var prototypeOfObject = Object.prototype;
-       var owns = call.bind(prototypeOfObject.hasOwnProperty);
+    if (!orig || dom_only) {
+      Object.defineProperty = function (o, prop, desc) {
+        // In IE8 try built-in implementation for defining properties on DOM prototypes.
+        if (orig)
+          try { return orig(o, prop, desc); } catch (_) {}
+        if (o !== Object(o))
+          throw TypeError('Object.defineProperty called on non-object');
+        if (Object.prototype.__defineGetter__ && ('get' in desc))
+          Object.prototype.__defineGetter__.call(o, prop, desc.get);
+        if (Object.prototype.__defineSetter__ && ('set' in desc))
+          Object.prototype.__defineSetter__.call(o, prop, desc.set);
+        if ('value' in desc)
+          o[prop] = desc.value;
+        return o;
+      };
+    }
+  }());

 
 

-       var lookupGetter;
-       var lookupSetter;
-       var supportsAccessors;
-       if ((supportsAccessors = owns(prototypeOfObject, "__defineGetter__"))) {
-           lookupGetter = call.bind(prototypeOfObject.__lookupGetter__);
-           lookupSetter = call.bind(prototypeOfObject.__lookupSetter__);
-       }
-       function doesGetOwnPropertyDescriptorWork(object) {
-           try {
-               object.sentinel = 0;
-               return Object.getOwnPropertyDescriptor(
-                   object,
-                   "sentinel"
-               ).value === 0;
-           } catch (exception) {
-               // returns falsy
-           }
-       }
-       // check whether getOwnPropertyDescriptor works if it's given. Otherwise,
-       // shim partially.
-       if (Object.defineProperty) {
-           var getOwnPropertyDescriptorWorksOnObject =
-               doesGetOwnPropertyDescriptorWork({});
-           var getOwnPropertyDescriptorWorksOnDom = typeof document == "undefined" ||
-               doesGetOwnPropertyDescriptorWork(document.createElement("div"));
-           if (!getOwnPropertyDescriptorWorksOnDom ||
-               !getOwnPropertyDescriptorWorksOnObject
-           ) {
-               var getOwnPropertyDescriptorFallback = Object.getOwnPropertyDescriptor;
-           }
-       }
+  // ES5: Make obj[index] an alias for obj._getter(index)/obj._setter(index, value)
+  // for index in 0 ... obj.length
+  function makeArrayAccessors(obj) {
+    if ('TYPED_ARRAY_POLYFILL_NO_ARRAY_ACCESSORS' in global)
+      return;

 
 

-       if (!Object.getOwnPropertyDescriptor || getOwnPropertyDescriptorFallback) {
-           var ERR_NON_OBJECT = "Object.getOwnPropertyDescriptor called on a non-object: ";
+    if (obj.length > MAX_ARRAY_LENGTH) throw RangeError('Array too large for polyfill');

 
 

-           CreateMethodProperty(Object, 'getOwnPropertyDescriptor', function getOwnPropertyDescriptor(object, property) {
-               if ((typeof object != "object" && typeof object != "function") || object === null) {
-                   throw new TypeError(ERR_NON_OBJECT + object);
-               }
+    function makeArrayAccessor(index) {
+      Object.defineProperty(obj, index, {
+        'get': function() { return obj._getter(index); },
+        'set': function(v) { obj._setter(index, v); },
+        enumerable: true,
+        configurable: false
+      });
+    }

 
 

-               // make a valiant attempt to use the real getOwnPropertyDescriptor
-               // for I8's DOM elements.
-               if (getOwnPropertyDescriptorFallback) {
-                   try {
-                       return getOwnPropertyDescriptorFallback.call(Object, object, property);
-                   } catch (exception) {
-                       // try the shim if the real one doesn't work
-                   }
-               }
+    var i;
+    for (i = 0; i < obj.length; i += 1) {
+      makeArrayAccessor(i);
+    }
+  }

 
 

-               // If object does not owns property return undefined immediately.
-               if (!owns(object, property)) {
-                   return;
-               }
+  // Internal conversion functions:
+  //    pack<Type>()   - take a number (interpreted as Type), output a byte array
+  //    unpack<Type>() - take a byte array, output a Type-like number

 
 

-               // If object has a property then it's for sure both `enumerable` and
-               // `configurable`.
-               var descriptor = { enumerable: true, configurable: true };
+  function as_signed(value, bits) { var s = 32 - bits; return (value << s) >> s; }
+  function as_unsigned(value, bits) { var s = 32 - bits; return (value << s) >>> s; }

 
 

-               // If JS engine supports accessor properties then property may be a
-               // getter or setter.
-               if (supportsAccessors) {
-                   // Unfortunately `__lookupGetter__` will return a getter even
-                   // if object has own non getter property along with a same named
-                   // inherited getter. To avoid misbehavior we temporary remove
-                   // `__proto__` so that `__lookupGetter__` will return getter only
-                   // if it's owned by an object.
-                   var prototype = object.__proto__;
-                   object.__proto__ = prototypeOfObject;
+  function packI8(n) { return [n & 0xff]; }
+  function unpackI8(bytes) { return as_signed(bytes[0], 8); }

 
 

-                   var getter = lookupGetter(object, property);
-                   var setter = lookupSetter(object, property);
+  function packU8(n) { return [n & 0xff]; }
+  function unpackU8(bytes) { return as_unsigned(bytes[0], 8); }

 
 

-                   // Once we have getter and setter we can put values back.
-                   object.__proto__ = prototype;
+  function packU8Clamped(n) { n = round(Number(n)); return [n < 0 ? 0 : n > 0xff ? 0xff : n & 0xff]; }

 
 

-                   if (getter || setter) {
-                       if (getter) {
-                           descriptor.get = getter;
-                       }
-                       if (setter) {
-                           descriptor.set = setter;
-                       }
-                       // If it was accessor property we're done and return here
-                       // in order to avoid adding `value` to the descriptor.
-                       return descriptor;
-                   }
-               }
+  function packI16(n) { return [n & 0xff, (n >> 8) & 0xff]; }
+  function unpackI16(bytes) { return as_signed(bytes[1] << 8 | bytes[0], 16); }

 
 

-               // If we got this far we know that object has an own property that is
-               // not an accessor so we set it as a value and return descriptor.
-               descriptor.value = object[property];
-                       descriptor.writable = true;
-               return descriptor;
-           });
-       }
-}());
+  function packU16(n) { return [n & 0xff, (n >> 8) & 0xff]; }
+  function unpackU16(bytes) { return as_unsigned(bytes[1] << 8 | bytes[0], 16); }

 
 

-}
+  function packI32(n) { return [n & 0xff, (n >> 8) & 0xff, (n >> 16) & 0xff, (n >> 24) & 0xff]; }
+  function unpackI32(bytes) { return as_signed(bytes[3] << 24 | bytes[2] << 16 | bytes[1] << 8 | bytes[0], 32); }

 
 

-if (!('defineProperties' in Object)) {
+  function packU32(n) { return [n & 0xff, (n >> 8) & 0xff, (n >> 16) & 0xff, (n >> 24) & 0xff]; }
+  function unpackU32(bytes) { return as_unsigned(bytes[3] << 24 | bytes[2] << 16 | bytes[1] << 8 | bytes[0], 32); }

 
 

-// Object.defineProperties
-/* global CreateMethodProperty, Get, ToObject, Type */
-// 19.1.2.3. Object.defineProperties ( O, Properties )
-CreateMethodProperty(Object, 'defineProperties', function defineProperties(O, Properties) {
-       // 1. If Type(O) is not Object, throw a TypeError exception.
-       if (Type(O) !== 'object') {
-               throw new TypeError('Object.defineProperties called on non-object');
-       }
-       // 2. Let props be ? ToObject(Properties).
-       var props = ToObject(Properties);
-       // 3. Let keys be ? props.[[OwnPropertyKeys]]().
-       /*
-               Polyfill.io - This step in our polyfill is not complying with the specification.
-               [[OwnPropertyKeys]] is meant to return ALL keys, including non-enumerable and symbols.
-               TODO: When we have Reflect.ownKeys, use that instead as it is the userland equivalent of [[OwnPropertyKeys]].
-       */
-       var keys = Object.keys(props);
-       // 4. Let descriptors be a new empty List.
-       var descriptors = [];
-       // 5. For each element nextKey of keys in List order, do
-       for (var i = 0; i < keys.length; i++) {
-               var nextKey = keys[i];
-               // a. Let propDesc be ? props.[[GetOwnProperty]](nextKey).
-               var propDesc = Object.getOwnPropertyDescriptor(props, nextKey);
-               // b. If propDesc is not undefined and propDesc.[[Enumerable]] is true, then
-               if (propDesc !== undefined && propDesc.enumerable) {
-                       // i. Let descObj be ? Get(props, nextKey).
-                       var descObj = Get(props, nextKey);
-                       // ii. Let desc be ? ToPropertyDescriptor(descObj).
-                       // Polyfill.io - We skip this step because Object.defineProperty deals with it.
-                       // TODO: Implement this step?
-                       var desc = descObj;
-                       // iii. Append the pair (a two element List) consisting of nextKey and desc to the end of descriptors.
-                       descriptors.push([nextKey, desc]);
-               }
-       }
-       // 6. For each pair from descriptors in list order, do
-       for (var i = 0; i < descriptors.length; i++){
-               // a. Let P be the first element of pair.
-               var P = descriptors[i][0];
-               // b. Let desc be the second element of pair.
-               var desc = descriptors[i][1];
-               // c. Perform ? DefinePropertyOrThrow(O, P, desc).
-               Object.defineProperty(O, P, desc);
-       }
-       // 7. Return O.
-       return O;
-});
+  function packIEEE754(v, ebits, fbits) {

 
 

-}
+    var bias = (1 << (ebits - 1)) - 1;

 
 

-if (!('create' in Object)) {
+    function roundToEven(n) {
+      var w = floor(n), f = n - w;
+      if (f < 0.5)
+        return w;
+      if (f > 0.5)
+        return w + 1;
+      return w % 2 ? w + 1 : w;
+    }

 
 

-// Object.create
-/* global CreateMethodProperty, Type */
-CreateMethodProperty(Object, 'create', function create(O, properties) {
-       // 1. If Type(O) is neither Object nor Null, throw a TypeError exception.
-       if (Type(O) !== 'object' && Type(O) !== 'null') {
-               throw new TypeError('Object prototype may only be an Object or null');
-       }
-       // 2. Let obj be ObjectCreate(O).
-       var obj = new Function('e', 'function Object() {}Object.prototype=e;return new Object')(O);
+    // Compute sign, exponent, fraction
+    var s, e, f;
+    if (v !== v) {
+      // NaN
+      // http://dev.w3.org/2006/webapi/WebIDL/#es-type-mapping
+      e = (1 << ebits) - 1; f = pow(2, fbits - 1); s = 0;
+    } else if (v === Infinity || v === -Infinity) {
+      e = (1 << ebits) - 1; f = 0; s = (v < 0) ? 1 : 0;
+    } else if (v === 0) {
+      e = 0; f = 0; s = (1 / v === -Infinity) ? 1 : 0;
+    } else {
+      s = v < 0;
+      v = abs(v);

 
 

-       obj.constructor.prototype = O;
+      if (v >= pow(2, 1 - bias)) {
+        // Normalized
+        e = min(floor(log(v) / LN2), 1023);
+        var significand = v / pow(2, e);
+        if (significand < 1) {
+          e -= 1;
+          significand *= 2;
+        }
+        if (significand >= 2) {
+          e += 1;
+          significand /= 2;
+        }
+        var d = pow(2, fbits);
+        f = roundToEven(significand * d) - d;
+        e += bias;
+        if (f / d >= 1) {
+          e += 1;
+          f = 0;
+        }
+        if (e > 2 * bias) {
+          // Overflow
+          e = (1 << ebits) - 1;
+          f = 0;
+        }
+      } else {
+        // Denormalized
+        e = 0;
+        f = roundToEven(v / pow(2, 1 - bias - fbits));
+      }
+    }

 
 

-       // 3. If Properties is not undefined, then
-       if (1 in arguments) {
-               // a. Return ? ObjectDefineProperties(obj, Properties).
-               return Object.defineProperties(obj, properties);
-       }
+    // Pack sign, exponent, fraction
+    var bits = [], i;
+    for (i = fbits; i; i -= 1) { bits.push(f % 2 ? 1 : 0); f = floor(f / 2); }
+    for (i = ebits; i; i -= 1) { bits.push(e % 2 ? 1 : 0); e = floor(e / 2); }
+    bits.push(s ? 1 : 0);
+    bits.reverse();
+    var str = bits.join('');

 
 

-       return obj;
-});
+    // Bits to bytes
+    var bytes = [];
+    while (str.length) {
+      bytes.unshift(parseInt(str.substring(0, 8), 2));
+      str = str.substring(8);
+    }
+    return bytes;
+  }

 
 

-}
+  function unpackIEEE754(bytes, ebits, fbits) {
+    // Bytes to bits
+    var bits = [], i, j, b, str,
+        bias, s, e, f;

 
 

-if (!('getPrototypeOf' in Object)) {
+    for (i = 0; i < bytes.length; ++i) {
+      b = bytes[i];
+      for (j = 8; j; j -= 1) {
+        bits.push(b % 2 ? 1 : 0); b = b >> 1;
+      }
+    }
+    bits.reverse();
+    str = bits.join('');

 
 

-// Object.getPrototypeOf
-/* global CreateMethodProperty */
-// Based on: https://github.com/es-shims/es5-shim/blob/master/es5-sham.js
+    // Unpack sign, exponent, fraction
+    bias = (1 << (ebits - 1)) - 1;
+    s = parseInt(str.substring(0, 1), 2) ? -1 : 1;
+    e = parseInt(str.substring(1, 1 + ebits), 2);
+    f = parseInt(str.substring(1 + ebits), 2);

 
 

-// https://github.com/es-shims/es5-shim/issues#issue/2
-// http://ejohn.org/blog/objectgetprototypeof/
-// recommended by fschaefer on github
-//
-// sure, and webreflection says ^_^
-// ... this will nerever possibly return null
-// ... Opera Mini breaks here with infinite loops
-CreateMethodProperty(Object, 'getPrototypeOf', function getPrototypeOf(object) {
-       if (object !== Object(object)) {
-               throw new TypeError('Object.getPrototypeOf called on non-object');
-       }
-       var proto = object.__proto__;
-       if (proto || proto === null) {
-               return proto;
-       } else if (typeof object.constructor == 'function' && object instanceof object.constructor) {
-    return object.constructor.prototype;
-  } else if (object instanceof Object) {
-               return Object.prototype;
-       } else {
-               // Correctly return null for Objects created with `Object.create(null)`
-               // (shammed or native) or `{ __proto__: null}`.  Also returns null for
-               // cross-realm objects on browsers that lack `__proto__` support (like
-               // IE <11), but that's the best we can do.
-               return null;
-       }
-});
+    // Produce number
+    if (e === (1 << ebits) - 1) {
+      return f !== 0 ? NaN : s * Infinity;
+    } else if (e > 0) {
+      // Normalized
+      return s * pow(2, e - bias) * (1 + f / pow(2, fbits));
+    } else if (f !== 0) {
+      // Denormalized
+      return s * pow(2, -(bias - 1)) * (f / pow(2, fbits));
+    } else {
+      return s < 0 ? -0 : 0;
+    }
+  }

 
 

-}
+  function unpackF64(b) { return unpackIEEE754(b, 11, 52); }
+  function packF64(v) { return packIEEE754(v, 11, 52); }
+  function unpackF32(b) { return unpackIEEE754(b, 8, 23); }
+  function packF32(v) { return packIEEE754(v, 8, 23); }

 
 

+  //
+  // 3 The ArrayBuffer Type
+  //

 
 

-// _ESAbstract.OrdinaryCreateFromConstructor
-/* global GetPrototypeFromConstructor */
-// 9.1.13. OrdinaryCreateFromConstructor ( constructor, intrinsicDefaultProto [ , internalSlotsList ] )
-function OrdinaryCreateFromConstructor(constructor, intrinsicDefaultProto) { // eslint-disable-line no-unused-vars
-       var internalSlotsList = arguments[2] || {};
-       // 1. Assert: intrinsicDefaultProto is a String value that is this specification's name of an intrinsic object.
-       // The corresponding object must be an intrinsic that is intended to be used as the[[Prototype]] value of an object.
+  (function() {

 
 

-       // 2. Let proto be ? GetPrototypeFromConstructor(constructor, intrinsicDefaultProto).
-       var proto = GetPrototypeFromConstructor(constructor, intrinsicDefaultProto);
+    function ArrayBuffer(length) {
+      length = ToInt32(length);
+      if (length < 0) throw RangeError('ArrayBuffer size is not a small enough positive integer.');
+      Object.defineProperty(this, 'byteLength', {value: length});
+      Object.defineProperty(this, '_bytes', {value: Array(length)});

 
 

-       // 3. Return ObjectCreate(proto, internalSlotsList).
-       // Polyfill.io - We do not pass internalSlotsList to Object.create because Object.create does not use the default ordinary object definitions specified in 9.1.
-       var obj = Object.create(proto);
-       for (var name in internalSlotsList) {
-               if (Object.prototype.hasOwnProperty.call(internalSlotsList, name)) {
-                       Object.defineProperty(obj, name, {
-                               configurable: true,
-                               enumerable: false,
-                               writable: true,
-                               value: internalSlotsList[name]
-                       });
-               }
-       }
-       return obj;
-}
+      for (var i = 0; i < length; i += 1)
+        this._bytes[i] = 0;
+    }

 
 

-// _ESAbstract.Construct
-/* global IsConstructor, OrdinaryCreateFromConstructor, Call */
-// 7.3.13. Construct ( F [ , argumentsList [ , newTarget ]] )
-function Construct(F /* [ , argumentsList [ , newTarget ]] */) { // eslint-disable-line no-unused-vars
-       // 1. If newTarget is not present, set newTarget to F.
-       var newTarget = arguments.length > 2 ? arguments[2] : F;
+    global.ArrayBuffer = global.ArrayBuffer || ArrayBuffer;

 
 

-       // 2. If argumentsList is not present, set argumentsList to a new empty List.
-       var argumentsList = arguments.length > 1 ? arguments[1] : [];
+    //
+    // 5 The Typed Array View Types
+    //

 
 

-       // 3. Assert: IsConstructor(F) is true.
-       if (!IsConstructor(F)) {
-               throw new TypeError('F must be a constructor.');
-       }
+    function $TypedArray$() {

 
 

-       // 4. Assert: IsConstructor(newTarget) is true.
-       if (!IsConstructor(newTarget)) {
-               throw new TypeError('newTarget must be a constructor.');
-       }
+      // %TypedArray% ( length )
+      if (!arguments.length || typeof arguments[0] !== 'object') {
+        return (function(length) {
+          length = ToInt32(length);
+          if (length < 0) throw RangeError('length is not a small enough positive integer.');
+          Object.defineProperty(this, 'length', {value: length});
+          Object.defineProperty(this, 'byteLength', {value: length * this.BYTES_PER_ELEMENT});
+          Object.defineProperty(this, 'buffer', {value: new ArrayBuffer(this.byteLength)});
+          Object.defineProperty(this, 'byteOffset', {value: 0});

 
 

-       // 5. Return ? F.[[Construct]](argumentsList, newTarget).
-       // Polyfill.io - If newTarget is the same as F, it is equivalent to new F(...argumentsList).
-       if (newTarget === F) {
-               return new (Function.prototype.bind.apply(F, [null].concat(argumentsList)))();
-       } else {
-               // Polyfill.io - This is mimicking section 9.2.2 step 5.a.
-               var obj = OrdinaryCreateFromConstructor(newTarget, Object.prototype);
-               return Call(F, obj, argumentsList);
-       }
-}
+         }).apply(this, arguments);
+      }

 
 

-// _ESAbstract.ArraySpeciesCreate
-/* global IsArray, ArrayCreate, Get, Type, IsConstructor, Construct */
-// 9.4.2.3. ArraySpeciesCreate ( originalArray, length )
-function ArraySpeciesCreate(originalArray, length) { // eslint-disable-line no-unused-vars
-       // 1. Assert: length is an integer Number ≥ 0.
-       // 2. If length is -0, set length to +0.
-       if (1/length === -Infinity) {
-               length = 0;
-       }
+      // %TypedArray% ( typedArray )
+      if (arguments.length >= 1 &&
+          Type(arguments[0]) === 'object' &&
+          arguments[0] instanceof $TypedArray$) {
+        return (function(typedArray){
+          if (this.constructor !== typedArray.constructor) throw TypeError();

 
 

-       // 3. Let isArray be ? IsArray(originalArray).
-       var isArray = IsArray(originalArray);
+          var byteLength = typedArray.length * this.BYTES_PER_ELEMENT;
+          Object.defineProperty(this, 'buffer', {value: new ArrayBuffer(byteLength)});
+          Object.defineProperty(this, 'byteLength', {value: byteLength});
+          Object.defineProperty(this, 'byteOffset', {value: 0});
+          Object.defineProperty(this, 'length', {value: typedArray.length});

 
 

-       // 4. If isArray is false, return ? ArrayCreate(length).
-       if (isArray === false) {
-               return ArrayCreate(length);
-       }
+          for (var i = 0; i < this.length; i += 1)
+            this._setter(i, typedArray._getter(i));

 
 

-       // 5. Let C be ? Get(originalArray, "constructor").
-       var C = Get(originalArray, 'constructor');
+        }).apply(this, arguments);
+      }

 
 

-       // Polyfill.io - We skip this section as not sure how to make a cross-realm normal Array, a same-realm Array.
-       // 6. If IsConstructor(C) is true, then
-       // if (IsConstructor(C)) {
-               // a. Let thisRealm be the current Realm Record.
-               // b. Let realmC be ? GetFunctionRealm(C).
-               // c. If thisRealm and realmC are not the same Realm Record, then
-                       // i. If SameValue(C, realmC.[[Intrinsics]].[[%Array%]]) is true, set C to undefined.
-       // }
-       // 7. If Type(C) is Object, then
-       if (Type(C) === 'object') {
-               // a. Set C to ? Get(C, @@species).
-               C = 'Symbol' in this && 'species' in this.Symbol ? Get(C, this.Symbol.species) : undefined;
-               // b. If C is null, set C to undefined.
-               if (C === null) {
-                       C = undefined;
-               }
-       }
-       // 8. If C is undefined, return ? ArrayCreate(length).
-       if (C === undefined) {
-               return ArrayCreate(length);
-       }
-       // 9. If IsConstructor(C) is false, throw a TypeError exception.
-       if (!IsConstructor(C)) {
-               throw new TypeError('C must be a constructor');
-       }
-       // 10. Return ? Construct(C, « length »).
-       return Construct(C, [length]);
-}
+      // %TypedArray% ( array )
+      if (arguments.length >= 1 &&
+          Type(arguments[0]) === 'object' &&
+          !(arguments[0] instanceof $TypedArray$) &&
+          !(arguments[0] instanceof ArrayBuffer || Class(arguments[0]) === 'ArrayBuffer')) {
+        return (function(array) {

 
 

-// _ESAbstract.ToBoolean
-// 7.1.2. ToBoolean ( argument )
-// The abstract operation ToBoolean converts argument to a value of type Boolean according to Table 9:
-/*
---------------------------------------------------------------------------------------------------------------
-| Argument Type | Result                                                                                     |
---------------------------------------------------------------------------------------------------------------
-| Undefined     | Return false.                                                                              |
-| Null          | Return false.                                                                              |
-| Boolean       | Return argument.                                                                           |
-| Number        | If argument is +0, -0, or NaN, return false; otherwise return true.                        |
-| String        | If argument is the empty String (its length is zero), return false; otherwise return true. |
-| Symbol        | Return true.                                                                               |
-| Object        | Return true.                                                                               |
---------------------------------------------------------------------------------------------------------------
-*/
-function ToBoolean(argument) { // eslint-disable-line no-unused-vars
-       return Boolean(argument);
-}
+          var byteLength = array.length * this.BYTES_PER_ELEMENT;
+          Object.defineProperty(this, 'buffer', {value: new ArrayBuffer(byteLength)});
+          Object.defineProperty(this, 'byteLength', {value: byteLength});
+          Object.defineProperty(this, 'byteOffset', {value: 0});
+          Object.defineProperty(this, 'length', {value: array.length});

 
 

-// _ESAbstract.CreateDataProperty
-// 7.3.4. CreateDataProperty ( O, P, V )
-// NOTE
-// This abstract operation creates a property whose attributes are set to the same defaults used for properties created by the ECMAScript language assignment operator.
-// Normally, the property will not already exist. If it does exist and is not configurable or if O is not extensible, [[DefineOwnProperty]] will return false.
-function CreateDataProperty(O, P, V) { // eslint-disable-line no-unused-vars
-       // 1. Assert: Type(O) is Object.
-       // 2. Assert: IsPropertyKey(P) is true.
-       // 3. Let newDesc be the PropertyDescriptor{ [[Value]]: V, [[Writable]]: true, [[Enumerable]]: true, [[Configurable]]: true }.
-       var newDesc = {
-               value: V,
-               writable: true,
-               enumerable: true,
-               configurable: true
-       };
-       // 4. Return ? O.[[DefineOwnProperty]](P, newDesc).
-       try {
-               Object.defineProperty(O, P, newDesc);
-               return true;
-       } catch (e) {
-               return false;
-       }
-}
-
-// _ESAbstract.CreateDataPropertyOrThrow
-/* global CreateDataProperty */
-// 7.3.6. CreateDataPropertyOrThrow ( O, P, V )
-function CreateDataPropertyOrThrow(O, P, V) { // eslint-disable-line no-unused-vars
-       // 1. Assert: Type(O) is Object.
-       // 2. Assert: IsPropertyKey(P) is true.
-       // 3. Let success be ? CreateDataProperty(O, P, V).
-       var success = CreateDataProperty(O, P, V);
-       // 4. If success is false, throw a TypeError exception.
-       if (!success) {
-               throw new TypeError('Cannot assign value `' + Object.prototype.toString.call(V) + '` to property `' + Object.prototype.toString.call(P) + '` on object `' + Object.prototype.toString.call(O) + '`');
-       }
-       // 5. Return success.
-       return success;
-}
-if (!('filter' in Array.prototype)) {
+          for (var i = 0; i < this.length; i += 1) {
+            var s = array[i];
+            this._setter(i, Number(s));
+          }
+        }).apply(this, arguments);
+      }

 
 

-// Array.prototype.filter
-/* global CreateMethodProperty, ToObject, ToLength, Get, IsCallable, ArraySpeciesCreate, ToString, HasProperty, ToBoolean, Call, CreateDataPropertyOrThrow */
-// 22.1.3.7. Array.prototype.filter ( callbackfn [ , thisArg ] )
-CreateMethodProperty(Array.prototype, 'filter', function filter(callbackfn /* [ , thisArg ] */) {
-       // 1. Let O be ? ToObject(this value).
-       var O = ToObject(this);
-       // 2. Let len be ? ToLength(? Get(O, "length")).
-       var len = ToLength(Get(O, "length"));
-       // 3. If IsCallable(callbackfn) is false, throw a TypeError exception.
-       if (IsCallable(callbackfn) === false) {
-               throw new TypeError(callbackfn + ' is not a function');
-       }
-       // 4. If thisArg is present, let T be thisArg; else let T be undefined.
-       var T = arguments.length > 1 ? arguments[1] : undefined;
-       // 5. Let A be ? ArraySpeciesCreate(O, 0).
-       var A = ArraySpeciesCreate(O, 0);
-       // 6. Let k be 0.
-       var k = 0;
-       // 7. Let to be 0.
-       var to = 0;
-       // 8. Repeat, while k < len
-       while (k < len) {
-               // a. Let Pk be ! ToString(k).
-               var Pk = ToString(k);
-               // b. Let kPresent be ? HasProperty(O, Pk).
-               var kPresent = HasProperty(O, Pk);
-               // c. If kPresent is true, then
-               if (kPresent) {
-                       // i. Let kValue be ? Get(O, Pk).
-                       var kValue = Get(O, Pk);
-                       // ii. Let selected be ToBoolean(? Call(callbackfn, T, « kValue, k, O »)).
-                       var selected = ToBoolean(Call(callbackfn, T, [kValue, k, O]));
-                       // iii. If selected is true, then
-                       if (selected) {
-                               // 1. Perform ? CreateDataPropertyOrThrow(A, ! ToString(to), kValue)
-                               CreateDataPropertyOrThrow(A, ToString(to), kValue);
-                               // 2. Increase to by 1.
-                               to = to + 1;
-                       }
+      // %TypedArray% ( buffer, byteOffset=0, length=undefined )
+      if (arguments.length >= 1 &&
+          Type(arguments[0]) === 'object' &&
+          (arguments[0] instanceof ArrayBuffer || Class(arguments[0]) === 'ArrayBuffer')) {
+        return (function(buffer, byteOffset, length) {

 
 

-               }
-               // d. Increase k by 1.
-               k = k + 1;
-       }
-       // 9. Return A.
-       return A;
-});
+          byteOffset = ToUint32(byteOffset);
+          if (byteOffset > buffer.byteLength)
+            throw RangeError('byteOffset out of range');

 
 

-}
+          // The given byteOffset must be a multiple of the element
+          // size of the specific type, otherwise an exception is raised.
+          if (byteOffset % this.BYTES_PER_ELEMENT)
+            throw RangeError('buffer length minus the byteOffset is not a multiple of the element size.');

 
 

-if (!('map' in Array.prototype)) {
+          if (length === undefined) {
+            var byteLength = buffer.byteLength - byteOffset;
+            if (byteLength % this.BYTES_PER_ELEMENT)
+              throw RangeError('length of buffer minus byteOffset not a multiple of the element size');
+            length = byteLength / this.BYTES_PER_ELEMENT;

 
 

-// Array.prototype.map
-/* global ArraySpeciesCreate, Call, CreateDataPropertyOrThrow, CreateMethodProperty, Get, HasProperty, IsCallable, ToLength, ToObject, ToString */
-/* global CreateMethodProperty, ToObject, ToLength, Get, ArraySpeciesCreate, ToString, HasProperty, Call, CreateDataPropertyOrThrow */
-// 22.1.3.16. Array.prototype.map ( callbackfn [ , thisArg ] )
-CreateMethodProperty(Array.prototype, 'map', function map(callbackfn /* [ , thisArg ] */) {
-       // 1. Let O be ? ToObject(this value).
-       var O = ToObject(this);
-       // 2. Let len be ? ToLength(? Get(O, "length")).
-       var len = ToLength(Get(O, "length"));
-       // 3. If IsCallable(callbackfn) is false, throw a TypeError exception.
-       if (IsCallable(callbackfn) === false) {
-               throw new TypeError(callbackfn + ' is not a function');
-       }
-       // 4. If thisArg is present, let T be thisArg; else let T be undefined.
-       var T = arguments.length > 1 ? arguments[1] : undefined;
-       // 5. Let A be ? ArraySpeciesCreate(O, len).
-       var A = ArraySpeciesCreate(O, len);
-       // 6. Let k be 0.
-       var k = 0;
-       // 7. Repeat, while k < len
-       while (k < len) {
-               // a. Let Pk be ! ToString(k).
-               var Pk = ToString(k);
-               // b. Let kPresent be ? HasProperty(O, Pk).
-               var kPresent = HasProperty(O, Pk);
-               // c. If kPresent is true, then
-               if (kPresent) {
-                       // i. Let kValue be ? Get(O, Pk).
-                       var kValue = Get(O, Pk);
-                       // ii. Let mappedValue be ? Call(callbackfn, T, « kValue, k, O »).
-                       var mappedValue = Call(callbackfn, T, [kValue, k, O]);
-                       // iii. Perform ? CreateDataPropertyOrThrow(A, Pk, mappedValue).
-                       CreateDataPropertyOrThrow(A, Pk, mappedValue);
-               }
-               // d. Increase k by 1.
-               k = k + 1;
-       }
-       // 8. Return A.
-       return A;
-});
+          } else {
+            length = ToUint32(length);
+            byteLength = length * this.BYTES_PER_ELEMENT;
+          }

 
 

-}
+          if ((byteOffset + byteLength) > buffer.byteLength)
+            throw RangeError('byteOffset and length reference an area beyond the end of the buffer');

 
 

-if (!('getOwnPropertyNames' in Object)) {
+          Object.defineProperty(this, 'buffer', {value: buffer});
+          Object.defineProperty(this, 'byteLength', {value: byteLength});
+          Object.defineProperty(this, 'byteOffset', {value: byteOffset});
+          Object.defineProperty(this, 'length', {value: length});

 
 

-// Object.getOwnPropertyNames
-/* global CreateMethodProperty */
+        }).apply(this, arguments);
+      }

 
 

-var toString = ({}).toString;
-var split = ''.split;
+      // %TypedArray% ( all other argument combinations )
+      throw TypeError();
+    }

 
 

-CreateMethodProperty(Object, 'getOwnPropertyNames', function getOwnPropertyNames(object) {
-       var buffer = [];
-       var key;
+    // Properties of the %TypedArray Instrinsic Object

 
 

-       // Non-enumerable properties cannot be discovered but can be checked for by name.
-       // Define those used internally by JS to allow an incomplete solution
-       var commonProps = ['length', "name", "arguments", "caller", "prototype", "observe", "unobserve"];
+    // %TypedArray%.from ( source , mapfn=undefined, thisArg=undefined )
+    Object.defineProperty($TypedArray$, 'from', {value: function(iterable) {
+      return new this(iterable);
+    }});

 
 

-       if (typeof object === 'undefined' || object === null) {
-               throw new TypeError('Cannot convert undefined or null to object');
-       }
+    // %TypedArray%.of ( ...items )
+    Object.defineProperty($TypedArray$, 'of', {value: function(/*...items*/) {
+      return new this(arguments);
+    }});

 
 

-       // Polyfill.io fallback for non-array-like strings which exist in some ES3 user-agents (IE 8)
-       object = toString.call(object) == '[object String]' ? split.call(object, '') : Object(object);
+    // %TypedArray%.prototype
+    var $TypedArrayPrototype$ = {};
+    $TypedArray$.prototype = $TypedArrayPrototype$;

 
 

-       // Enumerable properties only
-       for (key in object) {
-               if (Object.prototype.hasOwnProperty.call(object, key)) {
-                       buffer.push(key);
-               }
-       }
+    // WebIDL: getter type (unsigned long index);
+    Object.defineProperty($TypedArray$.prototype, '_getter', {value: function(index) {
+      if (arguments.length < 1) throw SyntaxError('Not enough arguments');

 
 

-       // Check for and add the common non-enumerable properties
-       for (var i=0, s=commonProps.length; i<s; i++) {
-               if (commonProps[i] in object) buffer.push(commonProps[i]);
-       }
+      index = ToUint32(index);
+      if (index >= this.length)
+        return undefined;

 
 

-       return buffer;
-});
+      var bytes = [], i, o;
+      for (i = 0, o = this.byteOffset + index * this.BYTES_PER_ELEMENT;
+           i < this.BYTES_PER_ELEMENT;
+           i += 1, o += 1) {
+        bytes.push(this.buffer._bytes[o]);
+      }
+      return this._unpack(bytes);
+    }});

 
 

-}
+    // NONSTANDARD: convenience alias for getter: type get(unsigned long index);
+    Object.defineProperty($TypedArray$.prototype, 'get', {value: $TypedArray$.prototype._getter});

 
 

-if (!('freeze' in Object)) {
+    // WebIDL: setter void (unsigned long index, type value);
+    Object.defineProperty($TypedArray$.prototype, '_setter', {value: function(index, value) {
+      if (arguments.length < 2) throw SyntaxError('Not enough arguments');

 
 

-// Object.freeze
-/* global CreateMethodProperty */
-// 19.1.2.6. Object.freeze ( O )
-CreateMethodProperty(Object, 'freeze', function freeze(O) {
-       // This feature cannot be implemented fully as a polyfill.
-       // We choose to silently fail which allows "securable" code
-       // to "gracefully" degrade to working but insecure code.
-       return O;
-});
+      index = ToUint32(index);
+      if (index >= this.length)
+        return;

 
 

-}
+      var bytes = this._pack(value), i, o;
+      for (i = 0, o = this.byteOffset + index * this.BYTES_PER_ELEMENT;
+           i < this.BYTES_PER_ELEMENT;
+           i += 1, o += 1) {
+        this.buffer._bytes[o] = bytes[i];
+      }
+    }});

 
 

-if (!('Symbol' in this && this.Symbol.length === 0)) {
+    // get %TypedArray%.prototype.buffer
+    // get %TypedArray%.prototype.byteLength
+    // get %TypedArray%.prototype.byteOffset
+    // -- applied directly to the object in the constructor

 
 

-// Symbol
-// A modification of https://github.com/WebReflection/get-own-property-symbols
-// (C) Andrea Giammarchi - MIT Licensed
+    // %TypedArray%.prototype.constructor
+    Object.defineProperty($TypedArray$.prototype, 'constructor', {value: $TypedArray$});

 
 

-(function (Object, GOPS, global) {
+    // %TypedArray%.prototype.copyWithin (target, start, end = this.length )
+    Object.defineProperty($TypedArray$.prototype, 'copyWithin', {value: function(target, start) {
+      var end = arguments[2];

 
 

-       var     setDescriptor;
-       var id = 0;
-       var random = '' + Math.random();
-       var prefix = '__\x01symbol:';
-       var prefixLength = prefix.length;
-       var internalSymbol = '__\x01symbol@@' + random;
-       var DP = 'defineProperty';
-       var DPies = 'defineProperties';
-       var GOPN = 'getOwnPropertyNames';
-       var GOPD = 'getOwnPropertyDescriptor';
-       var PIE = 'propertyIsEnumerable';
-       var ObjectProto = Object.prototype;
-       var hOP = ObjectProto.hasOwnProperty;
-       var pIE = ObjectProto[PIE];
-       var toString = ObjectProto.toString;
-       var concat = Array.prototype.concat;
-       var cachedWindowNames = typeof window === 'object' ? Object.getOwnPropertyNames(window) : [];
-       var nGOPN = Object[GOPN];
-       var gOPN = function getOwnPropertyNames (obj) {
-               if (toString.call(obj) === '[object Window]') {
-                       try {
-                               return nGOPN(obj);
-                       } catch (e) {
-                               // IE bug where layout engine calls userland gOPN for cross-domain `window` objects
-                               return concat.call([], cachedWindowNames);
-                       }
-               }
-               return nGOPN(obj);
-       };
-       var gOPD = Object[GOPD];
-       var create = Object.create;
-       var keys = Object.keys;
-       var freeze = Object.freeze || Object;
-       var defineProperty = Object[DP];
-       var $defineProperties = Object[DPies];
-       var descriptor = gOPD(Object, GOPN);
-       var addInternalIfNeeded = function (o, uid, enumerable) {
-               if (!hOP.call(o, internalSymbol)) {
-                       try {
-                               defineProperty(o, internalSymbol, {
-                                       enumerable: false,
-                                       configurable: false,
-                                       writable: false,
-                                       value: {}
-                               });
-                       } catch (e) {
-                               o[internalSymbol] = {};
-                       }
-               }
-               o[internalSymbol]['@@' + uid] = enumerable;
-       };
-       var createWithSymbols = function (proto, descriptors) {
-               var self = create(proto);
-               gOPN(descriptors).forEach(function (key) {
-                       if (propertyIsEnumerable.call(descriptors, key)) {
-                               $defineProperty(self, key, descriptors[key]);
-                       }
-               });
-               return self;
-       };
-       var copyAsNonEnumerable = function (descriptor) {
-               var newDescriptor = create(descriptor);
-               newDescriptor.enumerable = false;
-               return newDescriptor;
-       };
-       var get = function get(){};
-       var onlyNonSymbols = function (name) {
-               return name != internalSymbol &&
-                       !hOP.call(source, name);
-       };
-       var onlySymbols = function (name) {
-               return name != internalSymbol &&
-                       hOP.call(source, name);
-       };
-       var propertyIsEnumerable = function propertyIsEnumerable(key) {
-               var uid = '' + key;
-               return onlySymbols(uid) ? (
-                       hOP.call(this, uid) &&
-                       this[internalSymbol]['@@' + uid]
-               ) : pIE.call(this, key);
-       };
-       var setAndGetSymbol = function (uid) {
-               var descriptor = {
-                       enumerable: false,
-                       configurable: true,
-                       get: get,
-                       set: function (value) {
-                       setDescriptor(this, uid, {
-                               enumerable: false,
-                               configurable: true,
-                               writable: true,
-                               value: value
-                       });
-                       addInternalIfNeeded(this, uid, true);
-                       }
-               };
-               try {
-                       defineProperty(ObjectProto, uid, descriptor);
-               } catch (e) {
-                       ObjectProto[uid] = descriptor.value;
-               }
-               return freeze(source[uid] = defineProperty(
-                       Object(uid),
-                       'constructor',
-                       sourceConstructor
-               ));
-       };
-       var Symbol = function Symbol() {
-               var description = arguments[0];
-               if (this instanceof Symbol) {
-                       throw new TypeError('Symbol is not a constructor');
-               }
-               return setAndGetSymbol(
-                       prefix.concat(description || '', random, ++id)
-               );
-               };
-       var source = create(null);
-       var sourceConstructor = {value: Symbol};
-       var sourceMap = function (uid) {
-               return source[uid];
-               };
-       var $defineProperty = function defineProp(o, key, descriptor) {
-               var uid = '' + key;
-               if (onlySymbols(uid)) {
-                       setDescriptor(o, uid, descriptor.enumerable ?
-                               copyAsNonEnumerable(descriptor) : descriptor);
-                       addInternalIfNeeded(o, uid, !!descriptor.enumerable);
-               } else {
-                       defineProperty(o, key, descriptor);
-               }
-               return o;
-       };
+      var o = ToObject(this);
+      var lenVal = o.length;
+      var len = ToUint32(lenVal);
+      len = max(len, 0);
+      var relativeTarget = ToInt32(target);
+      var to;
+      if (relativeTarget < 0)
+        to = max(len + relativeTarget, 0);
+      else
+        to = min(relativeTarget, len);
+      var relativeStart = ToInt32(start);
+      var from;
+      if (relativeStart < 0)
+        from = max(len + relativeStart, 0);
+      else
+        from = min(relativeStart, len);
+      var relativeEnd;
+      if (end === undefined)
+        relativeEnd = len;
+      else
+        relativeEnd = ToInt32(end);
+      var final;
+      if (relativeEnd < 0)
+        final = max(len + relativeEnd, 0);
+      else
+        final = min(relativeEnd, len);
+      var count = min(final - from, len - to);
+      var direction;
+      if (from < to && to < from + count) {
+        direction = -1;
+        from = from + count - 1;
+        to = to + count - 1;
+      } else {
+        direction = 1;
+      }
+      while (count > 0) {
+        o._setter(to, o._getter(from));
+        from = from + direction;
+        to = to + direction;
+        count = count - 1;
+      }
+      return o;
+    }});
+
+    // %TypedArray%.prototype.entries ( )
+    // -- defined in es6.js to shim browsers w/ native TypedArrays
+
+    // %TypedArray%.prototype.every ( callbackfn, thisArg = undefined )
+    Object.defineProperty($TypedArray$.prototype, 'every', {value: function(callbackfn) {
+      if (this === undefined || this === null) throw TypeError();
+      var t = Object(this);
+      var len = ToUint32(t.length);
+      if (!IsCallable(callbackfn)) throw TypeError();
+      var thisArg = arguments[1];
+      for (var i = 0; i < len; i++) {
+        if (!callbackfn.call(thisArg, t._getter(i), i, t))
+          return false;
+      }
+      return true;
+    }});
+
+    // %TypedArray%.prototype.fill (value, start = 0, end = this.length )
+    Object.defineProperty($TypedArray$.prototype, 'fill', {value: function(value) {
+      var start = arguments[1],
+          end = arguments[2];
+
+      var o = ToObject(this);
+      var lenVal = o.length;
+      var len = ToUint32(lenVal);
+      len = max(len, 0);
+      var relativeStart = ToInt32(start);
+      var k;
+      if (relativeStart < 0)
+        k = max((len + relativeStart), 0);
+      else
+        k = min(relativeStart, len);
+      var relativeEnd;
+      if (end === undefined)
+        relativeEnd = len;
+      else
+        relativeEnd = ToInt32(end);
+      var final;
+      if (relativeEnd < 0)
+        final = max((len + relativeEnd), 0);
+      else
+        final = min(relativeEnd, len);
+      while (k < final) {
+        o._setter(k, value);
+        k += 1;
+      }
+      return o;
+    }});
+
+    // %TypedArray%.prototype.filter ( callbackfn, thisArg = undefined )
+    Object.defineProperty($TypedArray$.prototype, 'filter', {value: function(callbackfn) {
+      if (this === undefined || this === null) throw TypeError();
+      var t = Object(this);
+      var len = ToUint32(t.length);
+      if (!IsCallable(callbackfn)) throw TypeError();
+      var res = [];
+      var thisp = arguments[1];
+      for (var i = 0; i < len; i++) {
+        var val = t._getter(i); // in case fun mutates this
+        if (callbackfn.call(thisp, val, i, t))
+          res.push(val);
+      }
+      return new this.constructor(res);
+    }});
+
+    // %TypedArray%.prototype.find (predicate, thisArg = undefined)
+    Object.defineProperty($TypedArray$.prototype, 'find', {value: function(predicate) {
+      var o = ToObject(this);
+      var lenValue = o.length;
+      var len = ToUint32(lenValue);
+      if (!IsCallable(predicate)) throw TypeError();
+      var t = arguments.length > 1 ? arguments[1] : undefined;
+      var k = 0;
+      while (k < len) {
+        var kValue = o._getter(k);
+        var testResult = predicate.call(t, kValue, k, o);
+        if (Boolean(testResult))
+          return kValue;
+        ++k;
+      }
+      return undefined;
+    }});
+
+    // %TypedArray%.prototype.findIndex ( predicate, thisArg = undefined )
+    Object.defineProperty($TypedArray$.prototype, 'findIndex', {value: function(predicate) {
+      var o = ToObject(this);
+      var lenValue = o.length;
+      var len = ToUint32(lenValue);
+      if (!IsCallable(predicate)) throw TypeError();
+      var t = arguments.length > 1 ? arguments[1] : undefined;
+      var k = 0;
+      while (k < len) {
+        var kValue = o._getter(k);
+        var testResult = predicate.call(t, kValue, k, o);
+        if (Boolean(testResult))
+          return k;
+        ++k;
+      }
+      return -1;
+    }});

 
 

-       var onlyInternalSymbols = function (obj) {
-               return function (name) {
-                       return hOP.call(obj, internalSymbol) && hOP.call(obj[internalSymbol], '@@' + name);
-               };
-       };
-       var $getOwnPropertySymbols = function getOwnPropertySymbols(o) {
-               return gOPN(o).filter(o === ObjectProto ? onlyInternalSymbols(o) : onlySymbols).map(sourceMap);
-               }
-       ;
+    // %TypedArray%.prototype.forEach ( callbackfn, thisArg = undefined )
+    Object.defineProperty($TypedArray$.prototype, 'forEach', {value: function(callbackfn) {
+      if (this === undefined || this === null) throw TypeError();
+      var t = Object(this);
+      var len = ToUint32(t.length);
+      if (!IsCallable(callbackfn)) throw TypeError();
+      var thisp = arguments[1];
+      for (var i = 0; i < len; i++)
+        callbackfn.call(thisp, t._getter(i), i, t);
+    }});
+
+    // %TypedArray%.prototype.indexOf (searchElement, fromIndex = 0 )
+    Object.defineProperty($TypedArray$.prototype, 'indexOf', {value: function(searchElement) {
+      if (this === undefined || this === null) throw TypeError();
+      var t = Object(this);
+      var len = ToUint32(t.length);
+      if (len === 0) return -1;
+      var n = 0;
+      if (arguments.length > 0) {
+        n = Number(arguments[1]);
+        if (n !== n) {
+          n = 0;
+        } else if (n !== 0 && n !== (1 / 0) && n !== -(1 / 0)) {
+          n = (n > 0 || -1) * floor(abs(n));
+        }
+      }
+      if (n >= len) return -1;
+      var k = n >= 0 ? n : max(len - abs(n), 0);
+      for (; k < len; k++) {
+        if (t._getter(k) === searchElement) {
+          return k;
+        }
+      }
+      return -1;
+    }});
+
+    // %TypedArray%.prototype.join ( separator )
+    Object.defineProperty($TypedArray$.prototype, 'join', {value: function(separator) {
+      if (this === undefined || this === null) throw TypeError();
+      var t = Object(this);
+      var len = ToUint32(t.length);
+      var tmp = Array(len);
+      for (var i = 0; i < len; ++i)
+        tmp[i] = t._getter(i);
+      return tmp.join(separator === undefined ? ',' : separator); // Hack for IE7
+    }});
+
+    // %TypedArray%.prototype.keys ( )
+    // -- defined in es6.js to shim browsers w/ native TypedArrays
+
+    // %TypedArray%.prototype.lastIndexOf ( searchElement, fromIndex = this.length-1 )
+    Object.defineProperty($TypedArray$.prototype, 'lastIndexOf', {value: function(searchElement) {
+      if (this === undefined || this === null) throw TypeError();
+      var t = Object(this);
+      var len = ToUint32(t.length);
+      if (len === 0) return -1;
+      var n = len;
+      if (arguments.length > 1) {
+        n = Number(arguments[1]);
+        if (n !== n) {
+          n = 0;
+        } else if (n !== 0 && n !== (1 / 0) && n !== -(1 / 0)) {
+          n = (n > 0 || -1) * floor(abs(n));
+        }
+      }
+      var k = n >= 0 ? min(n, len - 1) : len - abs(n);
+      for (; k >= 0; k--) {
+        if (t._getter(k) === searchElement)
+          return k;
+      }
+      return -1;
+    }});
+
+    // get %TypedArray%.prototype.length
+    // -- applied directly to the object in the constructor
+
+    // %TypedArray%.prototype.map ( callbackfn, thisArg = undefined )
+    Object.defineProperty($TypedArray$.prototype, 'map', {value: function(callbackfn) {
+      if (this === undefined || this === null) throw TypeError();
+      var t = Object(this);
+      var len = ToUint32(t.length);
+      if (!IsCallable(callbackfn)) throw TypeError();
+      var res = []; res.length = len;
+      var thisp = arguments[1];
+      for (var i = 0; i < len; i++)
+        res[i] = callbackfn.call(thisp, t._getter(i), i, t);
+      return new this.constructor(res);
+    }});
+
+    // %TypedArray%.prototype.reduce ( callbackfn [, initialValue] )
+    Object.defineProperty($TypedArray$.prototype, 'reduce', {value: function(callbackfn) {
+      if (this === undefined || this === null) throw TypeError();
+      var t = Object(this);
+      var len = ToUint32(t.length);
+      if (!IsCallable(callbackfn)) throw TypeError();
+      // no value to return if no initial value and an empty array
+      if (len === 0 && arguments.length === 1) throw TypeError();
+      var k = 0;
+      var accumulator;
+      if (arguments.length >= 2) {
+        accumulator = arguments[1];
+      } else {
+        accumulator = t._getter(k++);
+      }
+      while (k < len) {
+        accumulator = callbackfn.call(undefined, accumulator, t._getter(k), k, t);
+        k++;
+      }
+      return accumulator;
+    }});
+
+    // %TypedArray%.prototype.reduceRight ( callbackfn [, initialValue] )
+    Object.defineProperty($TypedArray$.prototype, 'reduceRight', {value: function(callbackfn) {
+      if (this === undefined || this === null) throw TypeError();
+      var t = Object(this);
+      var len = ToUint32(t.length);
+      if (!IsCallable(callbackfn)) throw TypeError();
+      // no value to return if no initial value, empty array
+      if (len === 0 && arguments.length === 1) throw TypeError();
+      var k = len - 1;
+      var accumulator;
+      if (arguments.length >= 2) {
+        accumulator = arguments[1];
+      } else {
+        accumulator = t._getter(k--);
+      }
+      while (k >= 0) {
+        accumulator = callbackfn.call(undefined, accumulator, t._getter(k), k, t);
+        k--;
+      }
+      return accumulator;
+    }});
+
+    // %TypedArray%.prototype.reverse ( )
+    Object.defineProperty($TypedArray$.prototype, 'reverse', {value: function() {
+      if (this === undefined || this === null) throw TypeError();
+      var t = Object(this);
+      var len = ToUint32(t.length);
+      var half = floor(len / 2);
+      for (var i = 0, j = len - 1; i < half; ++i, --j) {
+        var tmp = t._getter(i);
+        t._setter(i, t._getter(j));
+        t._setter(j, tmp);
+      }
+      return t;
+    }});
+
+    // %TypedArray%.prototype.set(array, offset = 0 )
+    // %TypedArray%.prototype.set(typedArray, offset = 0 )
+    // WebIDL: void set(TypedArray array, optional unsigned long offset);
+    // WebIDL: void set(sequence<type> array, optional unsigned long offset);
+    Object.defineProperty($TypedArray$.prototype, 'set', {value: function(index, value) {
+      if (arguments.length < 1) throw SyntaxError('Not enough arguments');
+      var array, sequence, offset, len,
+          i, s, d,
+          byteOffset, byteLength, tmp;
+
+      if (typeof arguments[0] === 'object' && arguments[0].constructor === this.constructor) {
+        // void set(TypedArray array, optional unsigned long offset);
+        array = arguments[0];
+        offset = ToUint32(arguments[1]);
+
+        if (offset + array.length > this.length) {
+          throw RangeError('Offset plus length of array is out of range');
+        }
+
+        byteOffset = this.byteOffset + offset * this.BYTES_PER_ELEMENT;
+        byteLength = array.length * this.BYTES_PER_ELEMENT;
+
+        if (array.buffer === this.buffer) {
+          tmp = [];
+          for (i = 0, s = array.byteOffset; i < byteLength; i += 1, s += 1) {
+            tmp[i] = array.buffer._bytes[s];
+          }
+          for (i = 0, d = byteOffset; i < byteLength; i += 1, d += 1) {
+            this.buffer._bytes[d] = tmp[i];
+          }
+        } else {
+          for (i = 0, s = array.byteOffset, d = byteOffset;
+               i < byteLength; i += 1, s += 1, d += 1) {
+            this.buffer._bytes[d] = array.buffer._bytes[s];
+          }
+        }
+      } else if (typeof arguments[0] === 'object' && typeof arguments[0].length !== 'undefined') {
+        // void set(sequence<type> array, optional unsigned long offset);
+        sequence = arguments[0];
+        len = ToUint32(sequence.length);
+        offset = ToUint32(arguments[1]);
+
+        if (offset + len > this.length) {
+          throw RangeError('Offset plus length of array is out of range');
+        }
+
+        for (i = 0; i < len; i += 1) {
+          s = sequence[i];
+          this._setter(offset + i, Number(s));
+        }
+      } else {
+        throw TypeError('Unexpected argument type(s)');
+      }
+    }});
+
+    // %TypedArray%.prototype.slice ( start, end )
+    Object.defineProperty($TypedArray$.prototype, 'slice', {value: function(start, end) {
+      var o = ToObject(this);
+      var lenVal = o.length;
+      var len = ToUint32(lenVal);
+      var relativeStart = ToInt32(start);
+      var k = (relativeStart < 0) ? max(len + relativeStart, 0) : min(relativeStart, len);
+      var relativeEnd = (end === undefined) ? len : ToInt32(end);
+      var final = (relativeEnd < 0) ? max(len + relativeEnd, 0) : min(relativeEnd, len);
+      var count = final - k;
+      var c = o.constructor;
+      var a = new c(count);
+      var n = 0;
+      while (k < final) {
+        var kValue = o._getter(k);
+        a._setter(n, kValue);
+        ++k;
+        ++n;
+      }
+      return a;
+    }});
+
+    // %TypedArray%.prototype.some ( callbackfn, thisArg = undefined )
+    Object.defineProperty($TypedArray$.prototype, 'some', {value: function(callbackfn) {
+      if (this === undefined || this === null) throw TypeError();
+      var t = Object(this);
+      var len = ToUint32(t.length);
+      if (!IsCallable(callbackfn)) throw TypeError();
+      var thisp = arguments[1];
+      for (var i = 0; i < len; i++) {
+        if (callbackfn.call(thisp, t._getter(i), i, t)) {
+          return true;
+        }
+      }
+      return false;
+    }});

 
 

-       descriptor.value = $defineProperty;
-       defineProperty(Object, DP, descriptor);
+    // %TypedArray%.prototype.sort ( comparefn )
+    Object.defineProperty($TypedArray$.prototype, 'sort', {value: function(comparefn) {
+      if (this === undefined || this === null) throw TypeError();
+      var t = Object(this);
+      var len = ToUint32(t.length);
+      var tmp = Array(len);
+      for (var i = 0; i < len; ++i)
+        tmp[i] = t._getter(i);
+      function sortCompare(x, y) {
+        if (x !== x && y !== y) return +0;
+        if (x !== x) return 1;
+        if (y !== y) return -1;
+        if (comparefn !== undefined) {
+          return comparefn(x, y);
+        }
+        if (x < y) return -1;
+        if (x > y) return 1;
+        return +0;
+      }
+      tmp.sort(sortCompare);
+      for (i = 0; i < len; ++i)
+        t._setter(i, tmp[i]);
+      return t;
+    }});

 
 

-       descriptor.value = $getOwnPropertySymbols;
-       defineProperty(Object, GOPS, descriptor);
+    // %TypedArray%.prototype.subarray(begin = 0, end = this.length )
+    // WebIDL: TypedArray subarray(long begin, optional long end);
+    Object.defineProperty($TypedArray$.prototype, 'subarray', {value: function(start, end) {
+      function clamp(v, min, max) { return v < min ? min : v > max ? max : v; }

 
 

-       descriptor.value = function getOwnPropertyNames(o) {
-               return gOPN(o).filter(onlyNonSymbols);
-       };
-       defineProperty(Object, GOPN, descriptor);
+      start = ToInt32(start);
+      end = ToInt32(end);

 
 

-       descriptor.value = function defineProperties(o, descriptors) {
-               var symbols = $getOwnPropertySymbols(descriptors);
-               if (symbols.length) {
-               keys(descriptors).concat(symbols).forEach(function (uid) {
-                       if (propertyIsEnumerable.call(descriptors, uid)) {
-                       $defineProperty(o, uid, descriptors[uid]);
-                       }
-               });
-               } else {
-               $defineProperties(o, descriptors);
-               }
-               return o;
-       };
-       defineProperty(Object, DPies, descriptor);
+      if (arguments.length < 1) { start = 0; }
+      if (arguments.length < 2) { end = this.length; }

 
 

-       descriptor.value = propertyIsEnumerable;
-       defineProperty(ObjectProto, PIE, descriptor);
+      if (start < 0) { start = this.length + start; }
+      if (end < 0) { end = this.length + end; }

 
 

-       descriptor.value = Symbol;
-       defineProperty(global, 'Symbol', descriptor);
+      start = clamp(start, 0, this.length);
+      end = clamp(end, 0, this.length);

 
 

-       // defining `Symbol.for(key)`
-       descriptor.value = function (key) {
-               var uid = prefix.concat(prefix, key, random);
-               return uid in ObjectProto ? source[uid] : setAndGetSymbol(uid);
-       };
-       defineProperty(Symbol, 'for', descriptor);
+      var len = end - start;
+      if (len < 0) {
+        len = 0;
+      }

 
 

-       // defining `Symbol.keyFor(symbol)`
-       descriptor.value = function (symbol) {
-               if (onlyNonSymbols(symbol))
-               throw new TypeError(symbol + ' is not a symbol');
-               return hOP.call(source, symbol) ?
-               symbol.slice(prefixLength * 2, -random.length) :
-               void 0
-               ;
-       };
-       defineProperty(Symbol, 'keyFor', descriptor);
+      return new this.constructor(
+        this.buffer, this.byteOffset + start * this.BYTES_PER_ELEMENT, len);
+    }});

 
 

-       descriptor.value = function getOwnPropertyDescriptor(o, key) {
-               var descriptor = gOPD(o, key);
-               if (descriptor && onlySymbols(key)) {
-               descriptor.enumerable = propertyIsEnumerable.call(o, key);
-               }
-               return descriptor;
-       };
-       defineProperty(Object, GOPD, descriptor);
+    // %TypedArray%.prototype.toLocaleString ( )
+    // %TypedArray%.prototype.toString ( )
+    // %TypedArray%.prototype.values ( )
+    // %TypedArray%.prototype [ @@iterator ] ( )
+    // get %TypedArray%.prototype [ @@toStringTag ]
+    // -- defined in es6.js to shim browsers w/ native TypedArrays

 
 

-       descriptor.value = function (proto, descriptors) {
-               return arguments.length === 1 || typeof descriptors === "undefined" ?
-               create(proto) :
-               createWithSymbols(proto, descriptors);
-       };
-       defineProperty(Object, 'create', descriptor);
+    function makeTypedArray(elementSize, pack, unpack) {
+      // Each TypedArray type requires a distinct constructor instance with
+      // identical logic, which this produces.
+      var TypedArray = function() {
+        Object.defineProperty(this, 'constructor', {value: TypedArray});
+        $TypedArray$.apply(this, arguments);
+        makeArrayAccessors(this);
+      };
+      if ('__proto__' in TypedArray) {
+        TypedArray.__proto__ = $TypedArray$;
+      } else {
+        TypedArray.from = $TypedArray$.from;
+        TypedArray.of = $TypedArray$.of;
+      }

 
 

-       descriptor.value = function () {
-               var str = toString.call(this);
-               return (str === '[object String]' && onlySymbols(this)) ? '[object Symbol]' : str;
-       };
-       defineProperty(ObjectProto, 'toString', descriptor);
+      TypedArray.BYTES_PER_ELEMENT = elementSize;
+
+      var TypedArrayPrototype = function() {};
+      TypedArrayPrototype.prototype = $TypedArrayPrototype$;

 
 

+      TypedArray.prototype = new TypedArrayPrototype();

 
 

-       setDescriptor = function (o, key, descriptor) {
-               var protoDescriptor = gOPD(ObjectProto, key);
-               delete ObjectProto[key];
-               defineProperty(o, key, descriptor);
-               if (o !== ObjectProto) {
-                       defineProperty(ObjectProto, key, protoDescriptor);
-               }
-       };
+      Object.defineProperty(TypedArray.prototype, 'BYTES_PER_ELEMENT', {value: elementSize});
+      Object.defineProperty(TypedArray.prototype, '_pack', {value: pack});
+      Object.defineProperty(TypedArray.prototype, '_unpack', {value: unpack});

 
 

-}(Object, 'getOwnPropertySymbols', this));
+      return TypedArray;
+    }

 
 

-}
+    var Int8Array = makeTypedArray(1, packI8, unpackI8);
+    var Uint8Array = makeTypedArray(1, packU8, unpackU8);
+    var Uint8ClampedArray = makeTypedArray(1, packU8Clamped, unpackU8);
+    var Int16Array = makeTypedArray(2, packI16, unpackI16);
+    var Uint16Array = makeTypedArray(2, packU16, unpackU16);
+    var Int32Array = makeTypedArray(4, packI32, unpackI32);
+    var Uint32Array = makeTypedArray(4, packU32, unpackU32);
+    var Float32Array = makeTypedArray(4, packF32, unpackF32);
+    var Float64Array = makeTypedArray(8, packF64, unpackF64);

 
 

-if (!('Symbol' in this && 'iterator' in this.Symbol)) {
+    global.Int8Array = global.Int8Array || Int8Array;
+    global.Uint8Array = global.Uint8Array || Uint8Array;
+    global.Uint8ClampedArray = global.Uint8ClampedArray || Uint8ClampedArray;
+    global.Int16Array = global.Int16Array || Int16Array;
+    global.Uint16Array = global.Uint16Array || Uint16Array;
+    global.Int32Array = global.Int32Array || Int32Array;
+    global.Uint32Array = global.Uint32Array || Uint32Array;
+    global.Float32Array = global.Float32Array || Float32Array;
+    global.Float64Array = global.Float64Array || Float64Array;
+  }());

 
 

-// Symbol.iterator
-/* global Symbol */
-Object.defineProperty(Symbol, 'iterator', { value: Symbol('iterator') });
+  //
+  // 6 The DataView View Type
+  //

 
 

-}
+  (function() {
+    function r(array, index) {
+      return IsCallable(array.get) ? array.get(index) : array[index];
+    }

 
 

+    var IS_BIG_ENDIAN = (function() {
+      var u16array = new Uint16Array([0x1234]),
+          u8array = new Uint8Array(u16array.buffer);
+      return r(u8array, 0) === 0x12;
+    }());

 
 

-// _ESAbstract.GetIterator
-/* global GetMethod, Symbol, Call, Type, GetV */
-// 7.4.1. GetIterator ( obj [ , method ] )
-// The abstract operation GetIterator with argument obj and optional argument method performs the following steps:
-function GetIterator(obj /*, method */) { // eslint-disable-line no-unused-vars
-       // 1. If method is not present, then
-               // a. Set method to ? GetMethod(obj, @@iterator).
-       var method = arguments.length > 1 ? arguments[1] : GetMethod(obj, Symbol.iterator);
-       // 2. Let iterator be ? Call(method, obj).
-       var iterator = Call(method, obj);
-       // 3. If Type(iterator) is not Object, throw a TypeError exception.
-       if (Type(iterator) !== 'object') {
-               throw new TypeError('bad iterator');
-       }
-       // 4. Let nextMethod be ? GetV(iterator, "next").
-       var nextMethod = GetV(iterator, "next");
-       // 5. Let iteratorRecord be Record {[[Iterator]]: iterator, [[NextMethod]]: nextMethod, [[Done]]: false}.
-       var iteratorRecord = Object.create(null);
-       iteratorRecord['[[Iterator]]'] = iterator;
-       iteratorRecord['[[NextMethod]]'] = nextMethod;
-       iteratorRecord['[[Done]]'] = false;
-       // 6. Return iteratorRecord.
-       return iteratorRecord;
-}
+    // DataView(buffer, byteOffset=0, byteLength=undefined)
+    // WebIDL: Constructor(ArrayBuffer buffer,
+    //                     optional unsigned long byteOffset,
+    //                     optional unsigned long byteLength)
+    function DataView(buffer, byteOffset, byteLength) {
+      if (!(buffer instanceof ArrayBuffer || Class(buffer) === 'ArrayBuffer')) throw TypeError();

 
 

-// _ESAbstract.IteratorClose
-/* global GetMethod, Type, Call */
-// 7.4.6. IteratorClose ( iteratorRecord, completion )
-function IteratorClose(iteratorRecord, completion) { // eslint-disable-line no-unused-vars
-       // 1. Assert: Type(iteratorRecord.[[Iterator]]) is Object.
-       if (Type(iteratorRecord['[[Iterator]]']) !== 'object') {
-               throw new Error(Object.prototype.toString.call(iteratorRecord['[[Iterator]]']) + 'is not an Object.');
-       }
-       // 2. Assert: completion is a Completion Record.
-       // Polyfill.io - Ignoring this step as there is no way to check if something is a Completion Record in userland JavaScript.
+      byteOffset = ToUint32(byteOffset);
+      if (byteOffset > buffer.byteLength)
+        throw RangeError('byteOffset out of range');

 
 

-       // 3. Let iterator be iteratorRecord.[[Iterator]].
-       var iterator = iteratorRecord['[[Iterator]]'];
-       // 4. Let return be ? GetMethod(iterator, "return").
-       // Polyfill.io - We name it  returnMethod because return is a keyword and can not be used as an identifier (E.G. variable name, function name etc).
-       var returnMethod = GetMethod(iterator, "return");
-       // 5. If return is undefined, return Completion(completion).
-       if (returnMethod === undefined) {
-               return completion;
-       }
-       // 6. Let innerResult be Call(return, iterator, « »).
-       try {
-               var innerResult = Call(returnMethod, iterator);
-       } catch (error) {
-               var innerException = error;
-       }
-       // 7. If completion.[[Type]] is throw, return Completion(completion).
-       if (completion) {
-               return completion;
-       }
-       // 8. If innerResult.[[Type]] is throw, return Completion(innerResult).
-       if (innerException) {
-               throw innerException;
-       }
-       // 9. If Type(innerResult.[[Value]]) is not Object, throw a TypeError exception.
-       if (Type(innerResult) !== 'object') {
-               throw new TypeError("Iterator's return method returned a non-object.");
-       }
-       // 10. Return Completion(completion).
-       return completion;
-}
+      if (byteLength === undefined)
+        byteLength = buffer.byteLength - byteOffset;
+      else
+        byteLength = ToUint32(byteLength);

 
 

-// _ESAbstract.IteratorNext
-/* global Call, Type */
-// 7.4.2. IteratorNext ( iteratorRecord [ , value ] )
-function IteratorNext(iteratorRecord /* [, value] */) { // eslint-disable-line no-unused-vars
-       // 1. If value is not present, then
-       if (arguments.length < 2) {
-               // a. Let result be ? Call(iteratorRecord.[[NextMethod]], iteratorRecord.[[Iterator]], « »).
-               var result = Call(iteratorRecord['[[NextMethod]]'], iteratorRecord['[[Iterator]]']);
-       // 2. Else,
-       } else {
-               // a. Let result be ? Call(iteratorRecord.[[NextMethod]], iteratorRecord.[[Iterator]], « value »).
-               result = Call(iteratorRecord['[[NextMethod]]'], iteratorRecord['[[Iterator]]'], [arguments[1]]);
-       }
-       // 3. If Type(result) is not Object, throw a TypeError exception.
-       if (Type(result) !== 'object') {
-               throw new TypeError('bad iterator');
-       }
-       // 4. Return result.
-       return result;
-}
+      if ((byteOffset + byteLength) > buffer.byteLength)
+        throw RangeError('byteOffset and length reference an area beyond the end of the buffer');

 
 

-// _ESAbstract.IteratorComplete
-/* global Type, ToBoolean, Get */
-// 7.4.3 IteratorComplete ( iterResult )
-function IteratorComplete(iterResult) { // eslint-disable-line no-unused-vars
-       // 1. Assert: Type(iterResult) is Object.
-       if (Type(iterResult) !== 'object') {
-               throw new Error(Object.prototype.toString.call(iterResult) + 'is not an Object.');
-       }
-       // 2. Return ToBoolean(? Get(iterResult, "done")).
-       return ToBoolean(Get(iterResult, "done"));
-}
+      Object.defineProperty(this, 'buffer', {value: buffer});
+      Object.defineProperty(this, 'byteLength', {value: byteLength});
+      Object.defineProperty(this, 'byteOffset', {value: byteOffset});
+    };

 
 

-// _ESAbstract.IteratorStep
-/* global IteratorNext, IteratorComplete */
-// 7.4.5. IteratorStep ( iteratorRecord )
-function IteratorStep(iteratorRecord) { // eslint-disable-line no-unused-vars
-       // 1. Let result be ? IteratorNext(iteratorRecord).
-       var result = IteratorNext(iteratorRecord);
-       // 2. Let done be ? IteratorComplete(result).
-       var done = IteratorComplete(result);
-       // 3. If done is true, return false.
-       if (done === true) {
-               return false;
-       }
-       // 4. Return result.
-       return result;
-}
+    // get DataView.prototype.buffer
+    // get DataView.prototype.byteLength
+    // get DataView.prototype.byteOffset
+    // -- applied directly to instances by the constructor

 
 

-// _ESAbstract.IteratorValue
-/* global Type, Get */
-// 7.4.4 IteratorValue ( iterResult )
-function IteratorValue(iterResult) { // eslint-disable-line no-unused-vars
-       // Assert: Type(iterResult) is Object.
-       if (Type(iterResult) !== 'object') {
-               throw new Error(Object.prototype.toString.call(iterResult) + 'is not an Object.');
-       }
-       // Return ? Get(iterResult, "value").
-       return Get(iterResult, "value");
-}
+    function makeGetter(arrayType) {
+      return function GetViewValue(byteOffset, littleEndian) {
+        byteOffset = ToUint32(byteOffset);

 
 

-// _ESAbstract.CreateIterResultObject
-/* global Type, CreateDataProperty */
-// 7.4.7. CreateIterResultObject ( value, done )
-function CreateIterResultObject(value, done) { // eslint-disable-line no-unused-vars
-       // 1. Assert: Type(done) is Boolean.
-       if (Type(done) !== 'boolean') {
-               throw new Error();
-       }
-       // 2. Let obj be ObjectCreate(%ObjectPrototype%).
-       var obj = {};
-       // 3. Perform CreateDataProperty(obj, "value", value).
-       CreateDataProperty(obj, "value", value);
-       // 4. Perform CreateDataProperty(obj, "done", done).
-       CreateDataProperty(obj, "done", done);
-       // 5. Return obj.
-       return obj;
-}
+        if (byteOffset + arrayType.BYTES_PER_ELEMENT > this.byteLength)
+          throw RangeError('Array index out of range');

 
 

-// _ESAbstract.SameValueNonNumber
-// 7.2.12. SameValueNonNumber ( x, y )
-function SameValueNonNumber(x, y) { // eslint-disable-line no-unused-vars
-       // 1. Assert: Type(x) is not Number.
-       // 2. Assert: Type(x) is the same as Type(y).
-       // 3. If Type(x) is Undefined, return true.
-       // 4. If Type(x) is Null, return true.
-       // 5. If Type(x) is String, then
-               // a. If x and y are exactly the same sequence of code units (same length and same code units at corresponding indices), return true; otherwise, return false.
-       // 6. If Type(x) is Boolean, then
-               // a. If x and y are both true or both false, return true; otherwise, return false.
-       // 7. If Type(x) is Symbol, then
-               // a. If x and y are both the same Symbol value, return true; otherwise, return false.
-       // 8. If x and y are the same Object value, return true. Otherwise, return false.
+        byteOffset += this.byteOffset;

 
 

-       // Polyfill.io - We can skip all above steps because the === operator does it all for us.
-       return x === y;
-}
+        var uint8Array = new Uint8Array(this.buffer, byteOffset, arrayType.BYTES_PER_ELEMENT),
+            bytes = [];
+        for (var i = 0; i < arrayType.BYTES_PER_ELEMENT; i += 1)
+          bytes.push(r(uint8Array, i));

 
 

-// _ESAbstract.SameValueZero
-/* global Type, SameValueNonNumber */
-// 7.2.11. SameValueZero ( x, y )
-function SameValueZero (x, y) { // eslint-disable-line no-unused-vars
-       // 1. If Type(x) is different from Type(y), return false.
-       if (Type(x) !== Type(y)) {
-               return false;
-       }
-       // 2. If Type(x) is Number, then
-       if (Type(x) === 'number') {
-               // a. If x is NaN and y is NaN, return true.
-               if (isNaN(x) && isNaN(y)) {
-                       return true;
-               }
-               // b. If x is +0 and y is -0, return true.
-               if (1/x === Infinity && 1/y === -Infinity) {
-                       return true;
-               }
-               // c. If x is -0 and y is +0, return true.
-               if (1/x === -Infinity && 1/y === Infinity) {
-                       return true;
-               }
-               // d. If x is the same Number value as y, return true.
-               if (x === y) {
-                       return true;
-               }
-               // e. Return false.
-               return false;
-       }
-       // 3. Return SameValueNonNumber(x, y).
-       return SameValueNonNumber(x, y);
-}
-if (!('isArray' in Array)) {
+        if (Boolean(littleEndian) === Boolean(IS_BIG_ENDIAN))
+          bytes.reverse();

 
 

-// Array.isArray
-/* global CreateMethodProperty, IsArray */
-// 22.1.2.2. Array.isArray ( arg )
-CreateMethodProperty(Array, 'isArray', function isArray(arg) {
-       // 1. Return ? IsArray(arg).
-       return IsArray(arg);
-});
+        return r(new arrayType(new Uint8Array(bytes).buffer), 0);
+      };
+    }

 
 

-}
+    Object.defineProperty(DataView.prototype, 'getUint8', {value: makeGetter(Uint8Array)});
+    Object.defineProperty(DataView.prototype, 'getInt8', {value: makeGetter(Int8Array)});
+    Object.defineProperty(DataView.prototype, 'getUint16', {value: makeGetter(Uint16Array)});
+    Object.defineProperty(DataView.prototype, 'getInt16', {value: makeGetter(Int16Array)});
+    Object.defineProperty(DataView.prototype, 'getUint32', {value: makeGetter(Uint32Array)});
+    Object.defineProperty(DataView.prototype, 'getInt32', {value: makeGetter(Int32Array)});
+    Object.defineProperty(DataView.prototype, 'getFloat32', {value: makeGetter(Float32Array)});
+    Object.defineProperty(DataView.prototype, 'getFloat64', {value: makeGetter(Float64Array)});

 
 

-if (!('Symbol' in this && 'species' in this.Symbol)) {
+    function makeSetter(arrayType) {
+      return function SetViewValue(byteOffset, value, littleEndian) {
+        byteOffset = ToUint32(byteOffset);
+        if (byteOffset + arrayType.BYTES_PER_ELEMENT > this.byteLength)
+          throw RangeError('Array index out of range');

 
 

-// Symbol.species
-/* global Symbol */
-Object.defineProperty(Symbol, 'species', { value: Symbol('species') });
+        // Get bytes
+        var typeArray = new arrayType([value]),
+            byteArray = new Uint8Array(typeArray.buffer),
+            bytes = [], i, byteView;

 
 

-}
+        for (i = 0; i < arrayType.BYTES_PER_ELEMENT; i += 1)
+          bytes.push(r(byteArray, i));

 
 

-if (!('Map' in this && (function() {
-       try {
-               var m = new Map([[1, 1], [2, 2]]);
-               if (Map.length === 0) {
-                       if (m.size === 2) {
-                               if ('Symbol' in this && 'iterator' in Symbol && typeof m[Symbol.iterator] === 'function') {
-                                       return true;
-                               }
-                       }
-               }
-               return false;
-       } catch (e) {
-               return false;
-       }
-}()))) {
+        // Flip if necessary
+        if (Boolean(littleEndian) === Boolean(IS_BIG_ENDIAN))
+          bytes.reverse();

 
 

-// Map
-/* global CreateIterResultObject, CreateMethodProperty, GetIterator, IsCallable, IteratorClose, IteratorStep, IteratorValue, OrdinaryCreateFromConstructor, SameValueZero, Type, Symbol */
-(function (global) {
-       var supportsGetters = (function () {
-               try {
-                       var a = {};
-                       Object.defineProperty(a, 't', {
-                               configurable: true,
-                               enumerable: false,
-                               get: function () {
-                                       return true;
-                               },
-                               set: undefined
-                       });
-                       return !!a.t;
-               } catch (e) {
-                       return false;
-               }
-       }());
+        // Write them
+        byteView = new Uint8Array(this.buffer, byteOffset, arrayType.BYTES_PER_ELEMENT);
+        byteView.set(bytes);
+      };
+    }

 
 

-       // Deleted map items mess with iterator pointers, so rather than removing them mark them as deleted. Can't use undefined or null since those both valid keys so use a private symbol.
-       var undefMarker = Symbol('undef');
-       // 23.1.1.1 Map ( [ iterable ] )
-       var Map = function Map(/* iterable */) {
-               // 1. If NewTarget is undefined, throw a TypeError exception.
-               if (!(this instanceof Map)) {
-                       throw new TypeError('Constructor Map requires "new"');
-               }
-               // 2. Let map be ? OrdinaryCreateFromConstructor(NewTarget, "%MapPrototype%", « [[MapData]] »).
-               var map = OrdinaryCreateFromConstructor(this, Map.prototype, {
-                       _keys: [],
-                       _values: [],
-                       _size: 0,
-                       _es6Map: true
-               });
+    Object.defineProperty(DataView.prototype, 'setUint8', {value: makeSetter(Uint8Array)});
+    Object.defineProperty(DataView.prototype, 'setInt8', {value: makeSetter(Int8Array)});
+    Object.defineProperty(DataView.prototype, 'setUint16', {value: makeSetter(Uint16Array)});
+    Object.defineProperty(DataView.prototype, 'setInt16', {value: makeSetter(Int16Array)});
+    Object.defineProperty(DataView.prototype, 'setUint32', {value: makeSetter(Uint32Array)});
+    Object.defineProperty(DataView.prototype, 'setInt32', {value: makeSetter(Int32Array)});
+    Object.defineProperty(DataView.prototype, 'setFloat32', {value: makeSetter(Float32Array)});
+    Object.defineProperty(DataView.prototype, 'setFloat64', {value: makeSetter(Float64Array)});

 
 

-               // 3. Set map.[[MapData]] to a new empty List.
-               // Polyfill.io - This step was done as part of step two.
+    global.DataView = global.DataView || DataView;

 
 

-               // Some old engines do not support ES5 getters/setters.  Since Map only requires these for the size property, we can fall back to setting the size property statically each time the size of the map changes.
-               if (!supportsGetters) {
-                       Object.defineProperty(map, 'size', {
-                               configurable: true,
-                               enumerable: false,
-                               writable: true,
-                               value: 0
-                       });
-               }
+  }());

 
 

-               // 4. If iterable is not present, let iterable be undefined.
-               var iterable = arguments.length > 0 ? arguments[0] : undefined;
+}(self));
+if (!("defineProperty"in Object&&function(){try{var e={}
+return Object.defineProperty(e,"test",{value:42}),!0}catch(t){return!1}}()
+)) {
+
+// Object.defineProperty
+(function (nativeDefineProperty) {

 
 

-               // 5. If iterable is either undefined or null, return map.
-               if (iterable === null || iterable === undefined) {
-                       return map;
-               }
+       var supportsAccessors = Object.prototype.hasOwnProperty('__defineGetter__');
+       var ERR_ACCESSORS_NOT_SUPPORTED = 'Getters & setters cannot be defined on this javascript engine';
+       var ERR_VALUE_ACCESSORS = 'A property cannot both have accessors and be writable or have a value';

 
 

-               // 6. Let adder be ? Get(map, "set").
-               var adder = map.set;
+       // Polyfill.io - This does not use CreateMethodProperty because our CreateMethodProperty function uses Object.defineProperty.
+       Object['defineProperty'] = function defineProperty(object, property, descriptor) {

 
 

-               // 7. If IsCallable(adder) is false, throw a TypeError exception.
-               if (!IsCallable(adder)) {
-                       throw new TypeError("Map.prototype.set is not a function");
+               // Where native support exists, assume it
+               if (nativeDefineProperty && (object === window || object === document || object === Element.prototype || object instanceof Element)) {
+                       return nativeDefineProperty(object, property, descriptor);

                }
 
                }
 

-               // 8. Let iteratorRecord be ? GetIterator(iterable).
-               try {
-                       var iteratorRecord = GetIterator(iterable);
-                       // 9. Repeat,
-                       while (true) {
-                               // a. Let next be ? IteratorStep(iteratorRecord).
-                               var next = IteratorStep(iteratorRecord);
-                               // b. If next is false, return map.
-                               if (next === false) {
-                                       return map;
-                               }
-                               // c. Let nextItem be ? IteratorValue(next).
-                               var nextItem = IteratorValue(next);
-                               // d. If Type(nextItem) is not Object, then
-                               if (Type(nextItem) !== 'object') {
-                                       // i. Let error be Completion{[[Type]]: throw, [[Value]]: a newly created TypeError object, [[Target]]: empty}.
-                                       try {
-                                               throw new TypeError('Iterator value ' + nextItem + ' is not an entry object');
-                                       } catch (error) {
-                                               // ii. Return ? IteratorClose(iteratorRecord, error).
-                                               return IteratorClose(iteratorRecord, error);
-                                       }
-                               }
-                               try {
-                                       // Polyfill.io - The try catch accounts for steps: f, h, and j.
-
-                                       // e. Let k be Get(nextItem, "0").
-                                       var k = nextItem[0];
-                                       // f. If k is an abrupt completion, return ? IteratorClose(iteratorRecord, k).
-                                       // g. Let v be Get(nextItem, "1").
-                                       var v = nextItem[1];
-                                       // h. If v is an abrupt completion, return ? IteratorClose(iteratorRecord, v).
-                                       // i. Let status be Call(adder, map, « k.[[Value]], v.[[Value]] »).
-                                       adder.call(map, k, v);
-                               } catch (e) {
-                                       // j. If status is an abrupt completion, return ? IteratorClose(iteratorRecord, status).
-                                       return IteratorClose(iteratorRecord, e);
-                               }
-                       }
-               } catch (e) {
-                       // Polyfill.io - For user agents which do not have iteration methods on argument objects or arrays, we can special case those.
-                       if (Array.isArray(iterable) ||
-                               Object.prototype.toString.call(iterable) === '[object Arguments]' ||
-                               // IE 7 & IE 8 return '[object Object]' for the arguments object, we can detect by checking for the existence of the callee property
-                               (!!iterable.callee)) {
-                               var index;
-                               var length = iterable.length;
-                               for (index = 0; index < length; index++) {
-                                       adder.call(map, iterable[index][0], iterable[index][1]);
-                               }
-                       }
+               if (object === null || !(object instanceof Object || typeof object === 'object')) {
+                       throw new TypeError('Object.defineProperty called on non-object');

                }
                }

-               return map;
-       };

 
 

-       // 23.1.2.1. Map.prototype
-       // The initial value of Map.prototype is the intrinsic object %MapPrototype%.
-       // This property has the attributes { [[Writable]]: false, [[Enumerable]]: false, [[Configurable]]: false }.
-       Object.defineProperty(Map, 'prototype', {
-               configurable: false,
-               enumerable: false,
-               writable: false,
-               value: {}
-       });
+               if (!(descriptor instanceof Object)) {
+                       throw new TypeError('Property description must be an object');
+               }

 
 

-       // 23.1.2.2 get Map [ @@species ]
-       if (supportsGetters) {
-               Object.defineProperty(Map, Symbol.species, {
-                       configurable: true,
-                       enumerable: false,
-                       get: function () {
-                               // 1. Return the this value.
-                               return this;
-                       },
-                       set: undefined
-               });
-       } else {
-               CreateMethodProperty(Map, Symbol.species, Map);
-       }
+               var propertyString = String(property);
+               var hasValueOrWritable = 'value' in descriptor || 'writable' in descriptor;
+               var getterType = 'get' in descriptor && typeof descriptor.get;
+               var setterType = 'set' in descriptor && typeof descriptor.set;

 
 

-       // 23.1.3.1 Map.prototype.clear ( )
-       CreateMethodProperty(Map.prototype, 'clear', function clear() {
-                       // 1. Let M be the this value.
-                       var M = this;
-                       // 2. If Type(M) is not Object, throw a TypeError exception.
-                       if (Type(M) !== 'object') {
-                               throw new TypeError('Method Map.prototype.clear called on incompatible receiver ' + Object.prototype.toString.call(M));
-                       }
-                       // 3. If M does not have a [[MapData]] internal slot, throw a TypeError exception.
-                       if (M._es6Map !== true) {
-                               throw new TypeError('Method Map.prototype.clear called on incompatible receiver ' + Object.prototype.toString.call(M));
+               // handle descriptor.get
+               if (getterType) {
+                       if (getterType !== 'function') {
+                               throw new TypeError('Getter must be a function');

                        }
                        }

-                       // 4. Let entries be the List that is M.[[MapData]].
-                       var entries = M._keys;
-                       // 5. For each Record {[[Key]], [[Value]]} p that is an element of entries, do
-                       for (var i = 0; i < entries.length; i++) {
-                               // 5.a. Set p.[[Key]] to empty.
-                               M._keys[i] = undefMarker;
-                               // 5.b. Set p.[[Value]] to empty.
-                               M._values[i] = undefMarker;
+                       if (!supportsAccessors) {
+                               throw new TypeError(ERR_ACCESSORS_NOT_SUPPORTED);

                        }
                        }

-                       this._size = 0;
-                       if (!supportsGetters) {
-                               this.size = this._size;
+                       if (hasValueOrWritable) {
+                               throw new TypeError(ERR_VALUE_ACCESSORS);

                        }
                        }

-                       // 6. Return undefined.
-                       return undefined;
+                       Object.__defineGetter__.call(object, propertyString, descriptor.get);
+               } else {
+                       object[propertyString] = descriptor.value;

                }
                }

-       );

 
 

-       // 23.1.3.2. Map.prototype.constructor
-       CreateMethodProperty(Map.prototype, 'constructor', Map);
-
-       // 23.1.3.3. Map.prototype.delete ( key )
-       CreateMethodProperty(Map.prototype, 'delete', function (key) {
-                       // 1. Let M be the this value.
-                       var M = this;
-                       // 2. If Type(M) is not Object, throw a TypeError exception.
-                       if (Type(M) !== 'object') {
-                               throw new TypeError('Method Map.prototype.clear called on incompatible receiver ' + Object.prototype.toString.call(M));
+               // handle descriptor.set
+               if (setterType) {
+                       if (setterType !== 'function') {
+                               throw new TypeError('Setter must be a function');

                        }
                        }

-                       // 3. If M does not have a [[MapData]] internal slot, throw a TypeError exception.
-                       if (M._es6Map !== true) {
-                               throw new TypeError('Method Map.prototype.clear called on incompatible receiver ' + Object.prototype.toString.call(M));
+                       if (!supportsAccessors) {
+                               throw new TypeError(ERR_ACCESSORS_NOT_SUPPORTED);

                        }
                        }

-                       // 4. Let entries be the List that is M.[[MapData]].
-                       var entries = M._keys;
-                       // 5. For each Record {[[Key]], [[Value]]} p that is an element of entries, do
-                       for (var i = 0; i < entries.length; i++) {
-                               // a. If p.[[Key]] is not empty and SameValueZero(p.[[Key]], key) is true, then
-                               if (M._keys[i] !== undefMarker && SameValueZero(M._keys[i], key)) {
-                                       // i. Set p.[[Key]] to empty.
-                                       this._keys[i] = undefMarker;
-                                       // ii. Set p.[[Value]] to empty.
-                                       this._values[i] = undefMarker;
-                                       this._size = --this._size;
-                                       if (!supportsGetters) {
-                                               this.size = this._size;
-                                       }
-                                       // iii. Return true.
-                                       return true;
-                               }
+                       if (hasValueOrWritable) {
+                               throw new TypeError(ERR_VALUE_ACCESSORS);

                        }
                        }

-                       // 6. Return false.
-                       return false;
+                       Object.__defineSetter__.call(object, propertyString, descriptor.set);

                }
                }

-       );

 
 

-       // 23.1.3.4. Map.prototype.entries ( )
-       CreateMethodProperty(Map.prototype, 'entries', function entries () {
-                       // 1. Let M be the this value.
-                       var M = this;
-                       // 2. Return ? CreateMapIterator(M, "key+value").
-                       return CreateMapIterator(M, 'key+value');
-               }
-       );
+               // OK to define value unconditionally - if a getter has been specified as well, an error would be thrown above
+               if ('value' in descriptor) {
+                       object[propertyString] = descriptor.value;
+               }
+
+               return object;
+       };
+}(Object.defineProperty));
+
+}
+
+
+// _ESAbstract.CreateDataProperty
+// 7.3.4. CreateDataProperty ( O, P, V )
+// NOTE
+// This abstract operation creates a property whose attributes are set to the same defaults used for properties created by the ECMAScript language assignment operator.
+// Normally, the property will not already exist. If it does exist and is not configurable or if O is not extensible, [[DefineOwnProperty]] will return false.
+function CreateDataProperty(O, P, V) { // eslint-disable-line no-unused-vars
+       // 1. Assert: Type(O) is Object.
+       // 2. Assert: IsPropertyKey(P) is true.
+       // 3. Let newDesc be the PropertyDescriptor{ [[Value]]: V, [[Writable]]: true, [[Enumerable]]: true, [[Configurable]]: true }.
+       var newDesc = {
+               value: V,
+               writable: true,
+               enumerable: true,
+               configurable: true
+       };
+       // 4. Return ? O.[[DefineOwnProperty]](P, newDesc).
+       try {
+               Object.defineProperty(O, P, newDesc);
+               return true;
+       } catch (e) {
+               return false;
+       }
+}
+
+// _ESAbstract.CreateDataPropertyOrThrow
+/* global CreateDataProperty */
+// 7.3.6. CreateDataPropertyOrThrow ( O, P, V )
+function CreateDataPropertyOrThrow(O, P, V) { // eslint-disable-line no-unused-vars
+       // 1. Assert: Type(O) is Object.
+       // 2. Assert: IsPropertyKey(P) is true.
+       // 3. Let success be ? CreateDataProperty(O, P, V).
+       var success = CreateDataProperty(O, P, V);
+       // 4. If success is false, throw a TypeError exception.
+       if (!success) {
+               throw new TypeError('Cannot assign value `' + Object.prototype.toString.call(V) + '` to property `' + Object.prototype.toString.call(P) + '` on object `' + Object.prototype.toString.call(O) + '`');
+       }
+       // 5. Return success.
+       return success;
+}
+
+// _ESAbstract.CreateIterResultObject
+/* global Type, CreateDataProperty */
+// 7.4.7. CreateIterResultObject ( value, done )
+function CreateIterResultObject(value, done) { // eslint-disable-line no-unused-vars
+       // 1. Assert: Type(done) is Boolean.
+       if (Type(done) !== 'boolean') {
+               throw new Error();
+       }
+       // 2. Let obj be ObjectCreate(%ObjectPrototype%).
+       var obj = {};
+       // 3. Perform CreateDataProperty(obj, "value", value).
+       CreateDataProperty(obj, "value", value);
+       // 4. Perform CreateDataProperty(obj, "done", done).
+       CreateDataProperty(obj, "done", done);
+       // 5. Return obj.
+       return obj;
+}
+
+// _ESAbstract.CreateMethodProperty
+// 7.3.5. CreateMethodProperty ( O, P, V )
+function CreateMethodProperty(O, P, V) { // eslint-disable-line no-unused-vars
+       // 1. Assert: Type(O) is Object.
+       // 2. Assert: IsPropertyKey(P) is true.
+       // 3. Let newDesc be the PropertyDescriptor{[[Value]]: V, [[Writable]]: true, [[Enumerable]]: false, [[Configurable]]: true}.
+       var newDesc = {
+               value: V,
+               writable: true,
+               enumerable: false,
+               configurable: true
+       };
+       // 4. Return ? O.[[DefineOwnProperty]](P, newDesc).
+       Object.defineProperty(O, P, newDesc);
+}
+if (!("isArray"in Array
+)) {
+
+// Array.isArray
+/* global CreateMethodProperty, IsArray */
+// 22.1.2.2. Array.isArray ( arg )
+CreateMethodProperty(Array, 'isArray', function isArray(arg) {
+       // 1. Return ? IsArray(arg).
+       return IsArray(arg);
+});

 
 

-       // 23.1.3.5. Map.prototype.forEach ( callbackfn [ , thisArg ] )
-       CreateMethodProperty(Map.prototype, 'forEach', function (callbackFn) {
-                       // 1. Let M be the this value.
-                       var M = this;
-                       // 2. If Type(M) is not Object, throw a TypeError exception.
-                       if (Type(M) !== 'object') {
-                               throw new TypeError('Method Map.prototype.forEach called on incompatible receiver ' + Object.prototype.toString.call(M));
-                       }
-                       // 3. If M does not have a [[MapData]] internal slot, throw a TypeError exception.
-                       if (M._es6Map !== true) {
-                               throw new TypeError('Method Map.prototype.forEach called on incompatible receiver ' + Object.prototype.toString.call(M));
-                       }
-                       // 4. If IsCallable(callbackfn) is false, throw a TypeError exception.
-                       if (!IsCallable(callbackFn)) {
-                               throw new TypeError(Object.prototype.toString.call(callbackFn) + ' is not a function.');
-                       }
-                       // 5. If thisArg is present, let T be thisArg; else let T be undefined.
-                       if (arguments[1]) {
-                               var T = arguments[1];
-                       }
-                       // 6. Let entries be the List that is M.[[MapData]].
-                       var entries = M._keys;
-                       // 7. For each Record {[[Key]], [[Value]]} e that is an element of entries, in original key insertion order, do
-                       for (var i = 0; i < entries.length; i++) {
-                               // a. If e.[[Key]] is not empty, then
-                               if (M._keys[i] !== undefMarker && M._values[i] !== undefMarker ) {
-                                       // i. Perform ? Call(callbackfn, T, « e.[[Value]], e.[[Key]], M »).
-                                       callbackFn.call(T, M._values[i], M._keys[i], M);
-                               }
-                       }
-                       // 8. Return undefined.
-                       return undefined;
-               }
-       );
+}

 
 

-       // 23.1.3.6. Map.prototype.get ( key )
-       CreateMethodProperty(Map.prototype, 'get', function get(key) {
-                       // 1. Let M be the this value.
-                       var M = this;
-                       // 2. If Type(M) is not Object, throw a TypeError exception.
-                       if (Type(M) !== 'object') {
-                               throw new TypeError('Method Map.prototype.get called on incompatible receiver ' + Object.prototype.toString.call(M));
-                       }
-                       // 3. If M does not have a [[MapData]] internal slot, throw a TypeError exception.
-                       if (M._es6Map !== true) {
-                               throw new TypeError('Method Map.prototype.get called on incompatible receiver ' + Object.prototype.toString.call(M));
-                       }
-                       // 4. Let entries be the List that is M.[[MapData]].
-                       var entries = M._keys;
-                       // 5. For each Record {[[Key]], [[Value]]} p that is an element of entries, do
-                       for (var i = 0; i < entries.length; i++) {
-                               // a. If p.[[Key]] is not empty and SameValueZero(p.[[Key]], key) is true, return p.[[Value]].
-                               if (M._keys[i] !== undefMarker && SameValueZero(M._keys[i], key)) {
-                                       return M._values[i];
-                               }
-                       }
-                       // 6. Return undefined.
-                       return undefined;
-               });
+if (!("copyWithin"in Array.prototype&&function(){try{var t=function n(){}
+t.prototype[0]="foo"
+var o=new t
+o[1]=1,o[2]=2,o.length=3
+var r=Array.prototype.copyWithin.call(o,1,0)
+return!(!r[0]||Object.prototype.hasOwnProperty.call(r,"0")||!Object.prototype.hasOwnProperty.call(r,"1")||"foo"!==r[0]||"foo"!==r[1]||1!==r[2]||3!==r.length)}catch(e){return!1}}()
+)) {

 
 

-       // 23.1.3.7. Map.prototype.has ( key )
-       CreateMethodProperty(Map.prototype, 'has', function has (key) {
-                       // 1. Let M be the this value.
-                       var M = this;
-                       // 2. If Type(M) is not Object, throw a TypeError exception.
-                       if (typeof M !== 'object') {
-                               throw new TypeError('Method Map.prototype.has called on incompatible receiver ' + Object.prototype.toString.call(M));
-                       }
-                       // 3. If M does not have a [[MapData]] internal slot, throw a TypeError exception.
-                       if (M._es6Map !== true) {
-                               throw new TypeError('Method Map.prototype.has called on incompatible receiver ' + Object.prototype.toString.call(M));
-                       }
-                       // 4. Let entries be the List that is M.[[MapData]].
-                       var entries = M._keys;
-                       // 5. For each Record {[[Key]], [[Value]]} p that is an element of entries, do
-                       for (var i = 0; i < entries.length; i++) {
-                               // a. If p.[[Key]] is not empty and SameValueZero(p.[[Key]], key) is true, return true.
-                               if (M._keys[i] !== undefMarker && SameValueZero(M._keys[i], key)) {
-                                       return true;
-                               }
-                       }
-                       // 6. Return false.
-                       return false;
-               });
+// Array.prototype.copyWithin
+/* global CreateMethodProperty, HasProperty, ToInteger */
+// 22.1.3.3 Array.prototype.copyWithin ( target, start [ , end ] )
+CreateMethodProperty(Array.prototype, 'copyWithin', function copyWithin(target, start /* [ , end ] */ ) {
+       'use strict';
+       var end = arguments[2];

 
 

-       // 23.1.3.8. Map.prototype.keys ( )
-       CreateMethodProperty(Map.prototype, 'keys', function keys () {
-                       // 1. Let M be the this value.
-                       var M = this;
-                       // 2. Return ? CreateMapIterator(M, "key").
-                       return CreateMapIterator(M, "key");
-               });
+       // 22.1.3.3.1 Let O be ? ToObject(this value).
+       if (this === null || this === undefined) {
+               throw new TypeError('Cannot call method on ' + this);
+       }

 
 

-       // 23.1.3.9. Map.prototype.set ( key, value )
-       CreateMethodProperty(Map.prototype, 'set', function set(key, value) {
-                       // 1. Let M be the this value.
-                       var M = this;
-                       // 2. If Type(M) is not Object, throw a TypeError exception.
-                       if (Type(M) !== 'object') {
-                               throw new TypeError('Method Map.prototype.set called on incompatible receiver ' + Object.prototype.toString.call(M));
-                       }
-                       // 3. If M does not have a [[MapData]] internal slot, throw a TypeError exception.
-                       if (M._es6Map !== true) {
-                               throw new TypeError('Method Map.prototype.set called on incompatible receiver ' + Object.prototype.toString.call(M));
-                       }
-                       // 4. Let entries be the List that is M.[[MapData]].
-                       var entries = M._keys;
-                       // 5. For each Record {[[Key]], [[Value]]} p that is an element of entries, do
-                       for (var i = 0; i < entries.length; i++) {
-                               // a. If p.[[Key]] is not empty and SameValueZero(p.[[Key]], key) is true, then
-                               if (M._keys[i] !== undefMarker && SameValueZero(M._keys[i], key)) {
-                                       // i. Set p.[[Value]] to value.
-                                       M._values[i] = value;
-                                       // Return M.
-                                       return M;
-                               }
-                       }
-                       // 6. If key is -0, let key be +0.
-                       if (1/key === -Infinity) {
-                               key = 0;
-                       }
-                       // 7. Let p be the Record {[[Key]]: key, [[Value]]: value}.
-                       var p = {};
-                       p['[[Key]]'] = key;
-                       p['[[Value]]'] = value;
-                       // 8. Append p as the last element of entries.
-                       M._keys.push(p['[[Key]]']);
-                       M._values.push(p['[[Value]]']);
-                       ++M._size;
-                       if (!supportsGetters) {
-                               M.size = M._size;
-                       }
-                       // 9. Return M.
-                       return M;
-               });
+       var o = Object(this);

 
 

-       // 23.1.3.10. get Map.prototype.size
-       if (supportsGetters) {
-               Object.defineProperty(Map.prototype, 'size', {
-                       configurable: true,
-                       enumerable: false,
-                       get: function () {
-                               // 1. Let M be the this value.
-                               var M = this;
-                               // 2. If Type(M) is not Object, throw a TypeError exception.
-                               if (Type(M) !== 'object') {
-                                       throw new TypeError('Method Map.prototype.size called on incompatible receiver ' + Object.prototype.toString.call(M));
-                               }
-                               // 3. If M does not have a [[MapData]] internal slot, throw a TypeError exception.
-                               if (M._es6Map !== true) {
-                                       throw new TypeError('Method Map.prototype.size called on incompatible receiver ' + Object.prototype.toString.call(M));
-                               }
-                               // 4. Let entries be the List that is M.[[MapData]].
-                               var entries = M._keys;
-                               // 5. Let count be 0.
-                               var count = 0;
-                               // 6. For each Record {[[Key]], [[Value]]} p that is an element of entries, do
-                               for (var i = 0; i < entries.length; i++) {
-                                       // a. If p.[[Key]] is not empty, set count to count+1.
-                                       if (M._keys[i] !== undefMarker) {
-                                               count = count + 1;
-                                       }
-                               }
-                               // 7. Return count.
-                               return count;
-                       },
-                       set: undefined
-               });
+       // 22.1.3.3.2 Let len be ? ToLength(? Get(O, "length")).
+       var len = ToInteger(o.length);
+       if (len <= 0) {
+               len = 0;
+       }
+       if (len === Infinity) {
+               len = Math.pow(2, 53) - 1;
+       } else {
+               len = Math.min(len, Math.pow(2, 53) - 1);

        }
        }

+       len = Math.max(len, 0);

 
 

-       // 23.1.3.11. Map.prototype.values ( )
-       CreateMethodProperty(Map.prototype, 'values', function values () {
-                       // 1. Let M be the this value.
-                       var M = this;
-                       // 2. Return ? CreateMapIterator(M, "value").
-                       return CreateMapIterator(M, 'value');
-               }
-       );
+       // 22.1.3.3.3 Let relativeTarget be ? ToInteger(target).
+       var relativeTarget = ToInteger(target);

 
 

-       // 23.1.3.12. Map.prototype [ @@iterator ] ( )
-       // The initial value of the @@iterator property is the same function object as the initial value of the entries property.
-       CreateMethodProperty(Map.prototype, Symbol.iterator, Map.prototype.entries);
+       // 22.1.3.3.4 If relativeTarget < 0, let to be max((len + relativeTarget), 0); else let to be min(relativeTarget, len).
+       var to;
+       if (relativeTarget < 0) {
+               to = Math.max(len + relativeTarget, 0);
+       } else {
+               to = Math.min(relativeTarget, len);
+       }

 
 

-       // 23.1.3.13. Map.prototype [ @@toStringTag ]
-       // The initial value of the @@toStringTag property is the String value "Map".
-       // This property has the attributes { [[Writable]]: false, [[Enumerable]]: false, [[Configurable]]: true }.
+       // 22.1.3.3.5 Let relativeStart be ? ToInteger(start).
+       var relativeStart = ToInteger(start);

 
 

-       // Polyfill.io - Safari 8 implements Map.name but as a non-configurable property, which means it would throw an error if we try and configure it here.
-       if (!('name' in Map)) {
-               // 19.2.4.2 name
-               Object.defineProperty(Map, 'name', {
-                       configurable: true,
-                       enumerable: false,
-                       writable: false,
-                       value: 'Map'
-               });
+       // 22.1.3.3.6 If relativeStart < 0, let from be max((len + relativeStart), 0); else let from be min(relativeStart, len).
+       var from;
+       if (relativeStart < 0) {
+               from = Math.max(len + relativeStart, 0);
+       } else {
+               from = Math.min(relativeStart, len);
+       }
+
+       // 22.1.3.3.7 If end is undefined, let relativeEnd be len; else let relativeEnd be ? ToInteger(end).
+       var relativeEnd;
+       if (end === undefined) {
+               relativeEnd = len;
+       } else {
+               relativeEnd = ToInteger(end);

        }
 
        }
 

-       // 23.1.5.1. CreateMapIterator ( map, kind )
-       function CreateMapIterator(map, kind) {
-               // 1. If Type(map) is not Object, throw a TypeError exception.
-               if (Type(map) !== 'object') {
-                       throw new TypeError('createMapIterator called on incompatible receiver ' + Object.prototype.toString.call(map));
-               }
-               // 2. If map does not have a [[MapData]] internal slot, throw a TypeError exception.
-               if (map._es6Map !== true) {
-                       throw new TypeError('createMapIterator called on incompatible receiver ' + Object.prototype.toString.call(map));
-               }
-               // 3. Let iterator be ObjectCreate(%MapIteratorPrototype%, « [[Map]], [[MapNextIndex]], [[MapIterationKind]] »).
-               var iterator = Object.create(MapIteratorPrototype);
-               // 4. Set iterator.[[Map]] to map.
-               Object.defineProperty(iterator, '[[Map]]', {
-                       configurable: true,
-                       enumerable: false,
-                       writable: true,
-                       value: map
-               });
-               // 5. Set iterator.[[MapNextIndex]] to 0.
-               Object.defineProperty(iterator, '[[MapNextIndex]]', {
-                       configurable: true,
-                       enumerable: false,
-                       writable: true,
-                       value: 0
-               });
-               // 6. Set iterator.[[MapIterationKind]] to kind.
-               Object.defineProperty(iterator, '[[MapIterationKind]]', {
-                       configurable: true,
-                       enumerable: false,
-                       writable: true,
-                       value: kind
-               });
-               // 7. Return iterator.
-               return iterator;
+       // 22.1.3.3.8 If relativeEnd < 0, let final be max((len + relativeEnd), 0); else let final be min(relativeEnd, len).
+       var final;
+       if (relativeEnd < 0) {
+               final = Math.max(len + relativeEnd, 0);
+       } else {
+               final = Math.min(relativeEnd, len);

        }
 
        }
 

-       // 23.1.5.2. The %MapIteratorPrototype% Object
-       var MapIteratorPrototype = {};
-       // Polyfill.io - We use this as a quick way to check if an object is a Map Iterator instance.
-       Object.defineProperty(MapIteratorPrototype, 'isMapIterator', {
-               configurable: false,
-               enumerable: false,
-               writable: false,
-               value: true
-       });
+       // 22.1.3.3.9 Let count be min(final-from, len-to).
+       var count = Math.min(final - from, len - to);

 
 

-       // 23.1.5.2.1. %MapIteratorPrototype%.next ( )
-       CreateMethodProperty(MapIteratorPrototype, 'next', function next() {
-                       // 1. Let O be the this value.
-                       var O = this;
-                       // 2. If Type(O) is not Object, throw a TypeError exception.
-                       if (Type(O) !== 'object') {
-                               throw new TypeError('Method %MapIteratorPrototype%.next called on incompatible receiver ' + Object.prototype.toString.call(O));
-                       }
-                       // 3. If O does not have all of the internal slots of a Map Iterator Instance (23.1.5.3), throw a TypeError exception.
-                       if (!O.isMapIterator) {
-                               throw new TypeError('Method %MapIteratorPrototype%.next called on incompatible receiver ' + Object.prototype.toString.call(O));
-                       }
-                       // 4. Let m be O.[[Map]].
-                       var m = O['[[Map]]'];
-                       // 5. Let index be O.[[MapNextIndex]].
-                       var index = O['[[MapNextIndex]]'];
-                       // 6. Let itemKind be O.[[MapIterationKind]].
-                       var itemKind = O['[[MapIterationKind]]'];
-                       // 7. If m is undefined, return CreateIterResultObject(undefined, true).
-                       if (m === undefined) {
-                               return CreateIterResultObject(undefined, true);
-                       }
-                       // 8. Assert: m has a [[MapData]] internal slot.
-                       if (!m._es6Map) {
-                               throw new Error(Object.prototype.toString.call(m) + ' has a [[MapData]] internal slot.');
-                       }
-                       // 9. Let entries be the List that is m.[[MapData]].
-                       var entries = m._keys;
-                       // 10. Let numEntries be the number of elements of entries.
-                       var numEntries = entries.length;
-                       // 11. NOTE: numEntries must be redetermined each time this method is evaluated.
-                       // 12. Repeat, while index is less than numEntries,
-                       while (index < numEntries) {
-                               // a. Let e be the Record {[[Key]], [[Value]]} that is the value of entries[index].
-                               var e = Object.create(null);
-                               e['[[Key]]'] = m._keys[index];
-                               e['[[Value]]'] = m._values[index];
-                               // b. Set index to index+1.
-                               index = index + 1;
-                               // c. Set O.[[MapNextIndex]] to index.
-                               O['[[MapNextIndex]]'] = index;
-                               // d. If e.[[Key]] is not empty, then
-                               if (e['[[Key]]'] !== undefMarker) {
-                                       // i. If itemKind is "key", let result be e.[[Key]].
-                                       if (itemKind === 'key') {
-                                               var result = e['[[Key]]'];
-                                               // ii. Else if itemKind is "value", let result be e.[[Value]].
-                                       } else if (itemKind === 'value') {
-                                               result = e['[[Value]]'];
-                                               // iii. Else,
-                                       } else {
-                                               // 1. Assert: itemKind is "key+value".
-                                               if (itemKind !== 'key+value') {
-                                                       throw new Error();
-                                               }
-                                               // 2. Let result be CreateArrayFromList(« e.[[Key]], e.[[Value]] »).
-                                               result = [
-                                                       e['[[Key]]'],
-                                                       e['[[Value]]']
-                                               ];
-                                       }
-                                       // iv. Return CreateIterResultObject(result, false).
-                                       return CreateIterResultObject(result, false);
-                               }
-                       }
-                       // 13. Set O.[[Map]] to undefined.
-                       O['[[Map]]'] = undefined;
-                       // 14. Return CreateIterResultObject(undefined, true).
-                       return CreateIterResultObject(undefined, true);
-               }
-       );
+       // 22.1.3.3.10 If from<to and to<from+count, then
+       var direction;
+       if (from < to && to < from + count) {
+               // 22.1.3.3.10.a Let direction be -1.
+               direction = -1;

 
 

-       // 23.1.5.2.2 %MapIteratorPrototype% [ @@toStringTag ]
-       // The initial value of the @@toStringTag property is the String value "Map Iterator".
-       // This property has the attributes { [[Writable]]: false, [[Enumerable]]: false, [[Configurable]]: true }.
+               // 22.1.3.3.10.b Let from be from + count - 1.
+               from = from + count - 1;

 
 

-       CreateMethodProperty(MapIteratorPrototype, Symbol.iterator, function iterator() {
-                       return this;
-               }
-       );
+               // 22.1.3.3.10.c Let to be to + count - 1.
+               to = to + count - 1;
+       } else {
+               // 22.1.3.3.11 Else,
+               // 22.1.3.3.11.a Let direction be 1.
+               direction = 1;
+       }

 
 

-       // Export the object
-       try {
-               CreateMethodProperty(global, 'Map', Map);
-       } catch (e) {
-               // IE8 throws an error here if we set enumerable to false.
-               // More info on table 2: https://msdn.microsoft.com/en-us/library/dd229916(v=vs.85).aspx
-               global['Map'] = Map;
+       // 22.1.3.3.12 Repeat, while count > 0
+       while (count > 0) {
+               // 22.1.3.3.12.a Let fromKey be ! ToString(from).
+               var fromKey = String(from);
+               // 22.1.3.3.12.b Let toKey be ! ToString(to).
+               var toKey = String(to);
+               // 22.1.3.3.12.c Let fromPresent be ? HasProperty(O, fromKey).
+               var fromPresent = HasProperty(o, fromKey);
+               // 22.1.3.3.12.d If fromPresent is true, then
+               if (fromPresent) {
+                       // 22.1.3.3.12.d.i Let fromVal be ? Get(O, fromKey).
+                       var fromVal = o[fromKey];
+                       // 22.1.3.3.12.d.ii Perform ? Set(O, toKey, fromVal, true).
+                       o[toKey] = fromVal;
+               } else {
+                       // 22.1.3.3.12.e Else fromPresent is false,
+                       // 22.1.3.3.12.e.i Perform ? DeletePropertyOrThrow(O, toKey).
+                       delete o[toKey];
+               }
+               // 22.1.3.3.12.f Let from be from + direction.
+               from = from + direction;
+               // 22.1.3.3.12.g Let to be to + direction.
+               to = to + direction;
+               // 22.1.3.3.12.h Let count be count - 1.
+               count = count - 1;

        }
        }

-}(this));
+       // 22.1.3.3.13 Return O.
+       return o;
+});

 
 }
 
 
 }
 

-if (!('Set' in this && (function() {
-       try {
-               var s = new Set([1, 2]);
-               if (Set.length === 0) {
-                       if (s.size === 2) {
-                               if ('Symbol' in this && 'iterator' in Symbol && typeof s[Symbol.iterator] === 'function') {
-                                       return true;
-                               }
-                       }
-               }
-               return false;
-       } catch (e) {
-               return false;
-       }
-}()))) {
+if (!("fill"in Array.prototype
+)) {

 
 

-// Set
-/* global CreateIterResultObject, CreateMethodProperty, GetIterator, IsCallable, IteratorClose, IteratorStep, IteratorValue, OrdinaryCreateFromConstructor, SameValueZero, Symbol */
-(function (global) {
-       var supportsGetters = (function () {
-               try {
-                       var a = {};
-                       Object.defineProperty(a, 't', {
-                               configurable: true,
-                               enumerable: false,
-                               get: function () {
-                                       return true;
-                               },
-                               set: undefined
-                       });
-                       return !!a.t;
-               } catch (e) {
-                       return false;
-               }
-       }());
+// Array.prototype.fill
+/* global CreateMethodProperty, Get, ToInteger, ToLength, ToObject, ToString */
+// 22.1.3.6. Array.prototype.fill ( value [ , start [ , end ] ] )
+CreateMethodProperty(Array.prototype, 'fill', function fill(value /* [ , start [ , end ] ] */) {
+       var start = arguments[1];
+       var end = arguments[2];
+       // 1. Let O be ? ToObject(this value).
+       var O = ToObject(this);
+       // 2. Let len be ? ToLength(? Get(O, "length")).
+       var len = ToLength(Get(O, "length"));
+       // 3. Let relativeStart be ? ToInteger(start).
+       var relativeStart = ToInteger(start);
+       // 4. If relativeStart < 0, let k be max((len + relativeStart), 0); else let k be min(relativeStart, len)
+       var k = relativeStart < 0 ? Math.max((len + relativeStart), 0) : Math.min(relativeStart, len);
+       // 5. If end is undefined, let relativeEnd be len; else let relativeEnd be ? ToInteger(end).
+       var relativeEnd = end === undefined ? len : ToInteger(end);
+       // 6. If relativeEnd < 0, let final be max((len + relativeEnd), 0); else let final be min(relativeEnd, len).
+       var final = relativeEnd < 0 ? Math.max((len + relativeEnd), 0) : Math.min(relativeEnd, len);
+       // 7. Repeat, while k < final
+       while (k < final) {
+               // a. Let Pk be ! ToString(k).
+               var Pk = ToString(k);
+               // b. Perform ? Set(O, Pk, value, true).
+               O[Pk] = value;
+               // c. Increase k by 1.
+               k = k + 1;
+       }
+       // 8. Return O.
+       return O;
+});

 
 

-       // Deleted set items mess with iterator pointers, so rather than removing them mark them as deleted. Can't use undefined or null since those both valid keys so use a private symbol.
-       var undefMarker = Symbol('undef');
-       // 23.2.1.1. Set ( [ iterable ] )
-       var Set = function Set(/* iterable */) {
-               // 1. If NewTarget is undefined, throw a TypeError exception.
-               if (!(this instanceof Set)) {
-                       throw new TypeError('Constructor Set requires "new"');
-               }
-               // 2. Let set be ? OrdinaryCreateFromConstructor(NewTarget, "%SetPrototype%", « [[SetData]] »).
-               var set = OrdinaryCreateFromConstructor(this, Set.prototype, {
-                       _values: [],
-                       _size: 0,
-                       _es6Set: true
-               });
+}

 
 

-               // 3. Set set.[[SetData]] to a new empty List.
-               // Polyfill.io - This step was done as part of step two.
+if (!("find"in Array.prototype
+)) {

 
 

-               // Some old engines do not support ES5 getters/setters.  Since Set only requires these for the size property, we can fall back to setting the size property statically each time the size of the set changes.
-               if (!supportsGetters) {
-                       Object.defineProperty(set, 'size', {
-                               configurable: true,
-                               enumerable: false,
-                               writable: true,
-                               value: 0
-                       });
+// Array.prototype.find
+/* global Call, CreateMethodProperty, Get, IsCallable, ToBoolean, ToLength, ToObject, ToString */
+// 22.1.3.8 Array.prototype.find ( predicate [ , thisArg ] )
+CreateMethodProperty(Array.prototype, 'find', function find( predicate /* [ , thisArg ] */) {
+       // 1. Let O be ? ToObject(this value).
+       var O = ToObject(this);
+       // 2. Let len be ? ToLength(? Get(O, "length")).
+       var len = ToLength(Get(O, "length"));
+       // 3. If IsCallable(predicate) is false, throw a TypeError exception.
+       if (IsCallable(predicate) === false) {
+               throw new TypeError(predicate + ' is not a function');
+       }
+       // 4. If thisArg is present, let T be thisArg; else let T be undefined.
+       var T = arguments.length > 1 ? arguments[1] : undefined;
+       // 5. Let k be 0.
+       var k = 0;
+       // 6. Repeat, while k < len
+       while (k < len) {
+               // a. Let Pk be ! ToString(k).
+               var Pk = ToString(k);
+               // b. Let kValue be ? Get(O, Pk).
+               var kValue = Get(O, Pk);
+               // c. Let testResult be ToBoolean(? Call(predicate, T, « kValue, k, O »)).
+               var testResult = ToBoolean(Call(predicate, T, [kValue, k, O ]));
+               // d. If testResult is true, return kValue.
+               if (testResult) {
+                       return kValue;

                }
                }

+               // e. Increase k by 1.
+               var k = k + 1;
+       }
+       // 7. Return undefined.
+       return undefined;
+});

 
 

-               // 4. If iterable is not present, let iterable be undefined.
-               var iterable = arguments.length > 0 ? arguments[0] : undefined;
+}

 
 

-               // 5. If iterable is either undefined or null, return set.
-               if (iterable === null || iterable === undefined) {
-                       return set;
-               }
+if (!("findIndex"in Array.prototype
+)) {

 
 

-               // 6. Let adder be ? Get(set, "add").
-               var adder = set.add;
-               // 7. If IsCallable(adder) is false, throw a TypeError exception.
-               if (!IsCallable(adder)) {
-                       throw new TypeError("Set.prototype.add is not a function");
+// Array.prototype.findIndex
+/* global Call, CreateMethodProperty, Get, IsCallable, ToBoolean, ToLength, ToObject, ToString */
+// 22.1.3.9. Array.prototype.findIndex ( predicate [ , thisArg ] )
+CreateMethodProperty(Array.prototype, 'findIndex', function findIndex(predicate /* [ , thisArg ] */) {
+       // 1. Let O be ? ToObject(this value).
+       var O = ToObject(this);
+       // 2. Let len be ? ToLength(? Get(O, "length")).
+       var len = ToLength(Get(O, "length"));
+       // 3. If IsCallable(predicate) is false, throw a TypeError exception.
+       if (IsCallable(predicate) === false) {
+               throw new TypeError(predicate + ' is not a function');
+       }
+       // 4. If thisArg is present, let T be thisArg; else let T be undefined.
+       var T = arguments.length > 1 ? arguments[1] : undefined;
+       // 5. Let k be 0.
+       var k = 0;
+       // 6. Repeat, while k < len
+       while (k < len) {
+               // a. Let Pk be ! ToString(k).
+               var Pk = ToString(k);
+               // b. Let kValue be ? Get(O, Pk).
+               var kValue = Get(O, Pk);
+               // c. Let testResult be ToBoolean(? Call(predicate, T, « kValue, k, O »)).
+               var testResult = ToBoolean(Call(predicate, T, [kValue, k, O]));
+               // d. If testResult is true, return k.
+               if (testResult) {
+                       return k;

                }
                }

+               // e. Increase k by 1.
+               k = k + 1;
+       }
+       // 7. Return -1.
+       return -1;
+});

 
 

-               try {
-                       // 8. Let iteratorRecord be ? GetIterator(iterable).
-                       var iteratorRecord = GetIterator(iterable);
-                       // 9. Repeat,
-                       while (true) {
-                               // a. Let next be ? IteratorStep(iteratorRecord).
-                               var next = IteratorStep(iteratorRecord);
-                               // b. If next is false, return set.
-                               if (next === false) {
-                                       return set;
-                               }
-                               // c. Let nextValue be ? IteratorValue(next).
-                               var nextValue = IteratorValue(next);
-                               // d. Let status be Call(adder, set, « nextValue.[[Value]] »).
-                               try {
-                                       adder.call(set, nextValue);
-                               } catch (e) {
-                                       // e. If status is an abrupt completion, return ? IteratorClose(iteratorRecord, status).
-                                       return IteratorClose(iteratorRecord, e);
-                               }
-                       }
-               } catch (e) {
-                       // Polyfill.io - For user agents which do not have iteration methods on argument objects or arrays, we can special case those.
-                       if (Array.isArray(iterable) ||
-                               Object.prototype.toString.call(iterable) === '[object Arguments]' ||
-                               // IE 7 & IE 8 return '[object Object]' for the arguments object, we can detect by checking for the existence of the callee property
-                               (!!iterable.callee)) {
-                               var index;
-                               var length = iterable.length;
-                               for (index = 0; index < length; index++) {
-                                       adder.call(set, iterable[index]);
-                               }
-                       }
-               }
-               return set;
-       };
+}

 
 

-       // 23.2.2.1. Set.prototype
-       // The initial value of Set.prototype is the intrinsic %SetPrototype% object.
-       // This property has the attributes { [[Writable]]: false, [[Enumerable]]: false, [[Configurable]]: false }.
-       Object.defineProperty(Set, 'prototype', {
-               configurable: false,
-               enumerable: false,
-               writable: false,
-               value: {}
-       });
+if (!("forEach"in Array.prototype
+)) {

 
 

-       // 23.2.2.2 get Set [ @@species ]
-       if (supportsGetters) {
-               Object.defineProperty(Set, Symbol.species, {
-                       configurable: true,
-                       enumerable: false,
-                       get: function () {
-                               // 1. Return the this value.
-                               return this;
-                       },
-                       set: undefined
-               });
-       } else {
-               CreateMethodProperty(Set, Symbol.species, Set);
+// Array.prototype.forEach
+/* global Call, CreateMethodProperty, Get, HasProperty, IsCallable, ToLength, ToObject, ToString */
+// 22.1.3.10. Array.prototype.forEach ( callbackfn [ , thisArg ] )
+CreateMethodProperty(Array.prototype, 'forEach', function forEach(callbackfn /* [ , thisArg ] */) {
+       // 1. Let O be ? ToObject(this value).
+       var O = ToObject(this);
+       // Polyfill.io - If O is a String object, split it into an array in order to iterate correctly.
+       // We will use arrayLike in place of O when we are iterating through the list.
+       var arraylike = O instanceof String ? O.split('') : O;
+       // 2. Let len be ? ToLength(? Get(O, "length")).
+       var len = ToLength(Get(O, "length"));
+       // 3. If IsCallable(callbackfn) is false, throw a TypeError exception.
+       if (IsCallable(callbackfn) === false) {
+               throw new TypeError(callbackfn + ' is not a function');
+       }
+       // 4. If thisArg is present, let T be thisArg; else let T be undefined.
+       var T = arguments.length > 1 ? arguments[1] : undefined;
+       // 5. Let k be 0.
+       var k = 0;
+       // 6. Repeat, while k < len
+       while (k < len) {
+               // a. Let Pk be ! ToString(k).
+               var Pk = ToString(k);
+               // b. Let kPresent be ? HasProperty(O, Pk).
+               var kPresent = HasProperty(arraylike, Pk);
+               // c. If kPresent is true, then
+               if (kPresent) {
+                       // i. Let kValue be ? Get(O, Pk).
+                       var kValue = Get(arraylike, Pk);
+                       // ii. Perform ? Call(callbackfn, T, « kValue, k, O »).
+                       Call(callbackfn, T, [kValue, k, O]);
+               }
+               // d. Increase k by 1.
+               k = k + 1;

        }
        }

+       // 7. Return undefined.
+       return undefined;
+});

 
 

-       // 23.2.3.1. Set.prototype.add ( value )
-       CreateMethodProperty(Set.prototype, 'add', function add(value) {
-                       // 1. Let S be the this value.
-                       var S = this;
-                       // 2. If Type(S) is not Object, throw a TypeError exception.
-                       if (typeof S !== 'object') {
-                               throw new TypeError('Method Set.prototype.add called on incompatible receiver ' + Object.prototype.toString.call(S));
-                       }
-                       // 3. If S does not have a [[SetData]] internal slot, throw a TypeError exception.
-                       if (S._es6Set !== true) {
-                               throw new TypeError('Method Set.prototype.add called on incompatible receiver ' + Object.prototype.toString.call(S));
-                       }
-                       // 4. Let entries be the List that is S.[[SetData]].
-                       var entries = S._values;
-                       // 5. For each e that is an element of entries, do
-                       for (var i = 0; i < entries.length; i++) {
-                               var e = entries[i];
-                               // a. If e is not empty and SameValueZero(e, value) is true, then
-                               if (e !== undefMarker && SameValueZero(e, value)) {
-                                       // i. Return S.
-                                       return S;
-                               }
-                       }
-                       // 6. If value is -0, let value be +0.
-                       if (1/value === -Infinity) {
-                               value = 0;
-                       }
-                       // 7. Append value as the last element of entries.
-                       S._values.push(value);
+}

 
 

-                       this._size = ++this._size;
-                       if (!supportsGetters) {
-                               this.size = this._size;
-                       }
-                       // 8. Return S.
-                       return S;
-               });
+if (!("bind"in Function.prototype
+)) {

 
 

-       // 23.2.3.2. Set.prototype.clear ( )
-       CreateMethodProperty(Set.prototype, 'clear', function clear() {
-                       // 1. Let S be the this value.
-                       var S = this;
-                       // 2. If Type(S) is not Object, throw a TypeError exception.
-                       if (typeof S !== 'object') {
-                               throw new TypeError('Method Set.prototype.clear called on incompatible receiver ' + Object.prototype.toString.call(S));
-                       }
-                       // 3. If S does not have a [[SetData]] internal slot, throw a TypeError exception.
-                       if (S._es6Set !== true) {
-                               throw new TypeError('Method Set.prototype.clear called on incompatible receiver ' + Object.prototype.toString.call(S));
-                       }
-                       // 4. Let entries be the List that is S.[[SetData]].
-                       var entries = S._values;
-                       // 5. For each e that is an element of entries, do
-                       for (var i = 0; i < entries.length; i++) {
-                               // a. Replace the element of entries whose value is e with an element whose value is empty.
-                               entries[i] = undefMarker;
-                       }
-                       this._size = 0;
-                       if (!supportsGetters) {
-                               this.size = this._size;
-                       }
-                       // 6. Return undefined.
-                       return undefined;
-               });
+// Function.prototype.bind
+/* global CreateMethodProperty, IsCallable */
+// 19.2.3.2. Function.prototype.bind ( thisArg, ...args )
+// https://github.com/es-shims/es5-shim/blob/d6d7ff1b131c7ba14c798cafc598bb6780d37d3b/es5-shim.js#L182
+CreateMethodProperty(Function.prototype, 'bind', function bind(that) { // .length is 1
+       // add necessary es5-shim utilities
+       var $Array = Array;
+       var $Object = Object;
+       var ArrayPrototype = $Array.prototype;
+       var Empty = function Empty() { };
+       var array_slice = ArrayPrototype.slice;
+       var array_concat = ArrayPrototype.concat;
+       var array_push = ArrayPrototype.push;
+       var max = Math.max;
+       // /add necessary es5-shim utilities

 
 

-       // 23.2.3.3. Set.prototype.constructor
-       CreateMethodProperty(Set.prototype, 'constructor', Set);
+       // 1. Let Target be the this value.
+       var target = this;
+       // 2. If IsCallable(Target) is false, throw a TypeError exception.
+       if (!IsCallable(target)) {
+               throw new TypeError('Function.prototype.bind called on incompatible ' + target);
+       }
+       // 3. Let A be a new (possibly empty) internal list of all of the
+       //   argument values provided after thisArg (arg1, arg2 etc), in order.
+       // XXX slicedArgs will stand in for "A" if used
+       var args = array_slice.call(arguments, 1); // for normal call
+       // 4. Let F be a new native ECMAScript object.
+       // 11. Set the [[Prototype]] internal property of F to the standard
+       //   built-in Function prototype object as specified in 15.3.3.1.
+       // 12. Set the [[Call]] internal property of F as described in
+       //   15.3.4.5.1.
+       // 13. Set the [[Construct]] internal property of F as described in
+       //   15.3.4.5.2.
+       // 14. Set the [[HasInstance]] internal property of F as described in
+       //   15.3.4.5.3.
+       var bound;
+       var binder = function () {

 
 

-       // 23.2.3.4. Set.prototype.delete ( value )
-       CreateMethodProperty(Set.prototype, 'delete', function (value) {
-                       // 1. Let S be the this value.
-                       var S = this;
-                       // 2. If Type(S) is not Object, throw a TypeError exception.
-                       if (typeof S !== 'object') {
-                               throw new TypeError('Method Set.prototype.delete called on incompatible receiver ' + Object.prototype.toString.call(S));
-                       }
-                       // 3. If S does not have a [[SetData]] internal slot, throw a TypeError exception.
-                       if (S._es6Set !== true) {
-                               throw new TypeError('Method Set.prototype.delete called on incompatible receiver ' + Object.prototype.toString.call(S));
-                       }
-                       // 4. Let entries be the List that is S.[[SetData]].
-                       var entries = S._values;
-                       // 5. For each e that is an element of entries, do
-                       for (var i = 0; i < entries.length; i++) {
-                               var e = entries[i];
-                               // a. If e is not empty and SameValueZero(e, value) is true, then
-                               if (e !== undefMarker && SameValueZero(e, value)) {
-                                       // i. Replace the element of entries whose value is e with an element whose value is empty.
-                                       entries[i] = undefMarker;
+               if (this instanceof bound) {
+                       // 15.3.4.5.2 [[Construct]]
+                       // When the [[Construct]] internal method of a function object,
+                       // F that was created using the bind function is called with a
+                       // list of arguments ExtraArgs, the following steps are taken:
+                       // 1. Let target be the value of F's [[TargetFunction]]
+                       //   internal property.
+                       // 2. If target has no [[Construct]] internal method, a
+                       //   TypeError exception is thrown.
+                       // 3. Let boundArgs be the value of F's [[BoundArgs]] internal
+                       //   property.
+                       // 4. Let args be a new list containing the same values as the
+                       //   list boundArgs in the same order followed by the same
+                       //   values as the list ExtraArgs in the same order.
+                       // 5. Return the result of calling the [[Construct]] internal
+                       //   method of target providing args as the arguments.

 
 

-                                       this._size = --this._size;
-                                       if (!supportsGetters) {
-                                               this.size = this._size;
-                                       }
-                                       // ii. Return true.
-                                       return true;
-                               }
+                       var result = target.apply(
+                               this,
+                               array_concat.call(args, array_slice.call(arguments))
+                       );
+                       if ($Object(result) === result) {
+                               return result;

                        }
                        }

-                       // 6. Return false.
-                       return false;
-               }
-       );
+                       return this;

 
 

-       // 23.2.3.5. Set.prototype.entries ( )
-       CreateMethodProperty(Set.prototype, 'entries', function entries() {
-                       // 1. Let S be the this value.
-                       var S = this;
-                       // 2. Return ? CreateSetIterator(S, "key+value").
-                       return CreateSetIterator(S, 'key+value');
-               }
-       );
+               } else {
+                       // 15.3.4.5.1 [[Call]]
+                       // When the [[Call]] internal method of a function object, F,
+                       // which was created using the bind function is called with a
+                       // this value and a list of arguments ExtraArgs, the following
+                       // steps are taken:
+                       // 1. Let boundArgs be the value of F's [[BoundArgs]] internal
+                       //   property.
+                       // 2. Let boundThis be the value of F's [[BoundThis]] internal
+                       //   property.
+                       // 3. Let target be the value of F's [[TargetFunction]] internal
+                       //   property.
+                       // 4. Let args be a new list containing the same values as the
+                       //   list boundArgs in the same order followed by the same
+                       //   values as the list ExtraArgs in the same order.
+                       // 5. Return the result of calling the [[Call]] internal method
+                       //   of target providing boundThis as the this value and
+                       //   providing args as the arguments.

 
 

-       // 23.2.3.6. Set.prototype.forEach ( callbackfn [ , thisArg ] )
-       CreateMethodProperty(Set.prototype, 'forEach', function forEach(callbackFn /*[ , thisArg ]*/) {
-                       // 1. Let S be the this value.
-                       var S = this;
-                       // 2. If Type(S) is not Object, throw a TypeError exception.
-                       if (typeof S !== 'object') {
-                               throw new TypeError('Method Set.prototype.forEach called on incompatible receiver ' + Object.prototype.toString.call(S));
-                       }
-                       // 3. If S does not have a [[SetData]] internal slot, throw a TypeError exception.
-                       if (S._es6Set !== true) {
-                               throw new TypeError('Method Set.prototype.forEach called on incompatible receiver ' + Object.prototype.toString.call(S));
-                       }
-                       // 4. If IsCallable(callbackfn) is false, throw a TypeError exception.
-                       if (!IsCallable(callbackFn)) {
-                               throw new TypeError(Object.prototype.toString.call(callbackFn) + ' is not a function.');
-                       }
-                       // 5. If thisArg is present, let T be thisArg; else let T be undefined.
-                       if (arguments[1]) {
-                               var T = arguments[1];
-                       }
-                       // 6. Let entries be the List that is S.[[SetData]].
-                       var entries = S._values;
-                       // 7. For each e that is an element of entries, in original insertion order, do
-                       for (var i = 0; i < entries.length; i++) {
-                               var e = entries[i];
-                               // a. If e is not empty, then
-                               if (e !== undefMarker) {
-                                       // i. Perform ? Call(callbackfn, T, « e, e, S »).
-                                       callbackFn.call(T, e, e, S);
-                               }
-                       }
-                       // 8. Return undefined.
-                       return undefined;
-               }
-       );
+                       // equiv: target.call(this, ...boundArgs, ...args)
+                       return target.apply(
+                               that,
+                               array_concat.call(args, array_slice.call(arguments))
+                       );

 
 

-       // 23.2.3.7. Set.prototype.has ( value )
-       CreateMethodProperty(Set.prototype, 'has', function has(value) {
-                       // 1. Let S be the this value.
-                       var S = this;
-                       // 2. If Type(S) is not Object, throw a TypeError exception.
-                       if (typeof S !== 'object') {
-                               throw new TypeError('Method Set.prototype.forEach called on incompatible receiver ' + Object.prototype.toString.call(S));
-                       }
-                       // 3. If S does not have a [[SetData]] internal slot, throw a TypeError exception.
-                       if (S._es6Set !== true) {
-                               throw new TypeError('Method Set.prototype.forEach called on incompatible receiver ' + Object.prototype.toString.call(S));
-                       }
-                       // 4. Let entries be the List that is S.[[SetData]].
-                       var entries = S._values;
-                       // 5. For each e that is an element of entries, do
-                       for (var i = 0; i < entries.length; i++) {
-                               var e = entries[i];
-                               // a. If e is not empty and SameValueZero(e, value) is true, return true.
-                               if (e !== undefMarker && SameValueZero(e, value)) {
-                                       return true;
-                               }
-                       }
-                       // 6. Return false.
-                       return false;

                }
                }

-       );

 
 

-       // Polyfill.io - We need to define Set.prototype.values before Set.prototype.keys because keys is a reference to values.
-       // 23.2.3.10. Set.prototype.values()
-       var values = function values() {
-               // 1. Let S be the this value.
-               var S = this;
-               // 2. Return ? CreateSetIterator(S, "value").
-               return CreateSetIterator(S, "value");

        };
        };

-       CreateMethodProperty(Set.prototype, 'values', values);

 
 

-       // 23.2.3.8 Set.prototype.keys ( )
-       // The initial value of the keys property is the same function object as the initial value of the values property.
-       CreateMethodProperty(Set.prototype, 'keys', values);
+       // 15. If the [[Class]] internal property of Target is "Function", then
+       //     a. Let L be the length property of Target minus the length of A.
+       //     b. Set the length own property of F to either 0 or L, whichever is
+       //       larger.
+       // 16. Else set the length own property of F to 0.

 
 

-       // 23.2.3.9. get Set.prototype.size
-       if (supportsGetters) {
-               Object.defineProperty(Set.prototype, 'size', {
-                       configurable: true,
-                       enumerable: false,
-                       get: function () {
-                               // 1. Let S be the this value.
-                               var S = this;
-                               // 2. If Type(S) is not Object, throw a TypeError exception.
-                               if (typeof S !== 'object') {
-                                       throw new TypeError('Method Set.prototype.size called on incompatible receiver ' + Object.prototype.toString.call(S));
-                               }
-                               // 3. If S does not have a [[SetData]] internal slot, throw a TypeError exception.
-                               if (S._es6Set !== true) {
-                                       throw new TypeError('Method Set.prototype.size called on incompatible receiver ' + Object.prototype.toString.call(S));
-                               }
-                               // 4. Let entries be the List that is S.[[SetData]].
-                               var entries = S._values;
-                               // 5. Let count be 0.
-                               var count = 0;
-                               // 6. For each e that is an element of entries, do
-                               for (var i = 0; i < entries.length; i++) {
-                                       var e = entries[i];
-                                       // a. If e is not empty, set count to count+1.
-                                       if (e !== undefMarker) {
-                                               count = count + 1;
-                                       }
-                               }
-                               // 7. Return count.
-                               return count;
-                       },
-                       set: undefined
-               });
+       var boundLength = max(0, target.length - args.length);
+
+       // 17. Set the attributes of the length own property of F to the values
+       //   specified in 15.3.5.1.
+       var boundArgs = [];
+       for (var i = 0; i < boundLength; i++) {
+               array_push.call(boundArgs, '$' + i);
+       }
+
+       // XXX Build a dynamic function with desired amount of arguments is the only
+       // way to set the length property of a function.
+       // In environments where Content Security Policies enabled (Chrome extensions,
+       // for ex.) all use of eval or Function costructor throws an exception.
+       // However in all of these environments Function.prototype.bind exists
+       // and so this code will never be executed.
+       bound = Function('binder', 'return function (' + boundArgs.join(',') + '){ return binder.apply(this, arguments); }')(binder);
+
+       if (target.prototype) {
+               Empty.prototype = target.prototype;
+               bound.prototype = new Empty();
+               // Clean up dangling references.
+               Empty.prototype = null;

        }
 
        }
 

-       // 23.2.3.11. Set.prototype [ @@iterator ] ( )
-       // The initial value of the @@iterator property is the same function object as the initial value of the values property.
-       CreateMethodProperty(Set.prototype, Symbol.iterator, values);
+       // TODO
+       // 18. Set the [[Extensible]] internal property of F to true.
+
+       // TODO
+       // 19. Let thrower be the [[ThrowTypeError]] function Object (13.2.3).
+       // 20. Call the [[DefineOwnProperty]] internal method of F with
+       //   arguments "caller", PropertyDescriptor {[[Get]]: thrower, [[Set]]:
+       //   thrower, [[Enumerable]]: false, [[Configurable]]: false}, and
+       //   false.
+       // 21. Call the [[DefineOwnProperty]] internal method of F with
+       //   arguments "arguments", PropertyDescriptor {[[Get]]: thrower,
+       //   [[Set]]: thrower, [[Enumerable]]: false, [[Configurable]]: false},
+       //   and false.
+
+       // TODO
+       // NOTE Function objects created using Function.prototype.bind do not
+       // have a prototype property or the [[Code]], [[FormalParameters]], and
+       // [[Scope]] internal properties.
+       // XXX can't delete prototype in pure-js.

 
 

-       // 23.2.3.12. Set.prototype [ @@toStringTag ]
-       // The initial value of the @@toStringTag property is the String value "Set".
-       // This property has the attributes { [[Writable]]: false, [[Enumerable]]: false, [[Configurable]]: true }.
+       // 22. Return F.
+       return bound;
+});

 
 

-       // Polyfill.io - Safari 8 implements Set.name but as a non-configurable property, which means it would throw an error if we try and configure it here.
-       if (!('name' in Set)) {
-               // 19.2.4.2 name
-               Object.defineProperty(Set, 'name', {
-                       configurable: true,
-                       enumerable: false,
-                       writable: false,
-                       value: 'Set'
-               });
-       }
+}

 
 

-       // 23.2.5.1. CreateSetIterator ( set, kind )
-       function CreateSetIterator(set, kind) {
-               // 1. If Type(set) is not Object, throw a TypeError exception.
-               if (typeof set !== 'object') {
-                       throw new TypeError('createSetIterator called on incompatible receiver ' + Object.prototype.toString.call(set));
-               }
-               // 2. If set does not have a [[SetData]] internal slot, throw a TypeError exception.
-               if (set._es6Set !== true) {
-                       throw new TypeError('createSetIterator called on incompatible receiver ' + Object.prototype.toString.call(set));
-               }
-               // 3. Let iterator be ObjectCreate(%SetIteratorPrototype%, « [[IteratedSet]], [[SetNextIndex]], [[SetIterationKind]] »).
-               var iterator = Object.create(SetIteratorPrototype);
-               // 4. Set iterator.[[IteratedSet]] to set.
-               Object.defineProperty(iterator, '[[IteratedSet]]', {
-                       configurable: true,
-                       enumerable: false,
-                       writable: true,
-                       value: set
-               });
-               // 5. Set iterator.[[SetNextIndex]] to 0.
-               Object.defineProperty(iterator, '[[SetNextIndex]]', {
-                       configurable: true,
-                       enumerable: false,
-                       writable: true,
-                       value: 0
-               });
-               // 6. Set iterator.[[SetIterationKind]] to kind.
-               Object.defineProperty(iterator, '[[SetIterationKind]]', {
-                       configurable: true,
-                       enumerable: false,
-                       writable: true,
-                       value: kind
-               });
-               // 7. Return iterator.
-               return iterator;
+if (!("acosh"in Math
+)) {
+
+// Math.acosh
+/* global CreateMethodProperty */
+// 20.2.2.3. Math.acosh ( x )
+CreateMethodProperty(Math, 'acosh', function acosh(x) {
+       // If x is NaN, the result is NaN.
+       if (isNaN(x)) {
+               return NaN;
+       }
+       // If x is less than 1, the result is NaN.
+       if (x < 1) {
+               return NaN;
+       }
+       // If x is 1, the result is +0.
+       if (x === 1) {
+               return 0;

        }
        }

+       // If x is +∞, the result is +∞.
+       if (x === Infinity) {
+               return Infinity;
+       }
+       return Math.log(x + Math.sqrt(x * x - 1));
+});

 
 

-       // 23.2.5.2. The %SetIteratorPrototype% Object
-       var SetIteratorPrototype = {};
-       //Polyfill.io - We add this property to help us identify what is a set iterator.
-       Object.defineProperty(SetIteratorPrototype, 'isSetIterator', {
-               configurable: false,
-               enumerable: false,
-               writable: false,
-               value: true
-       });
+}

 
 

-       // 23.2.5.2.1. %SetIteratorPrototype%.next ( )
-       CreateMethodProperty(SetIteratorPrototype, 'next', function next() {
-               // 1. Let O be the this value.
-               var O = this;
-               // 2. If Type(O) is not Object, throw a TypeError exception.
-               if (typeof O !== 'object') {
-                       throw new TypeError('Method %SetIteratorPrototype%.next called on incompatible receiver ' + Object.prototype.toString.call(O));
-               }
-               // 3. If O does not have all of the internal slots of a Set Iterator Instance (23.2.5.3), throw a TypeError exception.
-               if (!O.isSetIterator) {
-                       throw new TypeError('Method %SetIteratorPrototype%.next called on incompatible receiver ' + Object.prototype.toString.call(O));
-               }
-               // 4. Let s be O.[[IteratedSet]].
-               var s = O['[[IteratedSet]]'];
-               // 5. Let index be O.[[SetNextIndex]].
-               var index = O['[[SetNextIndex]]'];
-               // 6. Let itemKind be O.[[SetIterationKind]].
-               var itemKind = O['[[SetIterationKind]]'];
-               // 7. If s is undefined, return CreateIterResultObject(undefined, true).
-               if (s === undefined) {
-                       return CreateIterResultObject(undefined, true);
-               }
-               // 8. Assert: s has a [[SetData]] internal slot.
-               if (!s._es6Set) {
-                       throw new Error(Object.prototype.toString.call(s) + ' does not have [[SetData]] internal slot.');
-               }
-               // 9. Let entries be the List that is s.[[SetData]].
-               var entries = s._values;
-               // 10. Let numEntries be the number of elements of entries.
-               var numEntries = entries.length;
-               // 11. NOTE: numEntries must be redetermined each time this method is evaluated.
-               // 12. Repeat, while index is less than numEntries,
-               while (index < numEntries) {
-                       // a. Let e be entries[index].
-                       var e = entries[index];
-                       // b. Set index to index+1.
-                       index = index + 1;
-                       // c. Set O.[[SetNextIndex]] to index.
-                       O['[[SetNextIndex]]'] = index;
-                       // d. If e is not empty, then
-                       if (e !== undefMarker) {
-                               // i. If itemKind is "key+value", then
-                               if (itemKind === 'key+value') {
-                                       // 1. Return CreateIterResultObject(CreateArrayFromList(« e, e »), false).
-                                       return CreateIterResultObject([e, e], false);
-                               }
-                               // ii. Return CreateIterResultObject(e, false).
-                               return CreateIterResultObject(e, false);
-                       }
-               }
-               // 13. Set O.[[IteratedSet]] to undefined.
-               O['[[IteratedSet]]'] = undefined;
-               // 14. Return CreateIterResultObject(undefined, true).
-               return CreateIterResultObject(undefined, true);
-       });
+if (!("asinh"in Math
+)) {

 
 

-       // 23.2.5.2.2. %SetIteratorPrototype% [ @@toStringTag ]
-       // The initial value of the @@toStringTag property is the String value "Set Iterator".
-       // This property has the attributes { [[Writable]]: false, [[Enumerable]]: false, [[Configurable]]: true }.
+// Math.asinh
+/* global CreateMethodProperty */
+// 20.2.2.5. Math.asinh ( x )
+CreateMethodProperty(Math, 'asinh', function asinh(x) {
+       // If x is NaN, the result is NaN.
+       if (isNaN(x)) {
+               return NaN;
+       }
+       // If x is +0, the result is +0.
+       if (x === 0 && 1/x === Infinity) {
+               return 0;
+       }
+       // If x is -0, the result is -0.
+       if (x === 0 && 1/x === -Infinity) {
+               return -0;
+       }
+       // If x is +∞, the result is +∞.
+       if (x === Infinity) {
+               return Infinity;
+       }
+       // If x is -∞, the result is -∞.
+       if (x === -Infinity) {
+               return -Infinity;
+       }
+       return Math.log(x + Math.sqrt(x * x + 1));
+});

 
 

-       CreateMethodProperty(SetIteratorPrototype, Symbol.iterator, function iterator() {
-                       return this;
-               }
-       );
+}

 
 

-       // Export the object
-       try {
-               CreateMethodProperty(global, 'Set', Set);
-       } catch (e) {
-               // IE8 throws an error here if we set enumerable to false.
-               // More info on table 2: https://msdn.microsoft.com/en-us/library/dd229916(v=vs.85).aspx
-               global['Set'] = Set;
-       }
+if (!("atanh"in Math
+)) {

 
 

-}(this));
+// Math.atanh
+/* global CreateMethodProperty */
+// 20.2.2.7. Math.atanh ( x )
+CreateMethodProperty(Math, 'atanh', function atanh(x) {
+       // If x is NaN, the result is NaN.
+       if (isNaN(x)) {
+               return NaN;
+       }
+       // If x is less than -1, the result is NaN.
+       if (x < -1) {
+               return NaN;
+       }
+       // If x is greater than 1, the result is NaN.
+       if (x > 1) {
+               return NaN;
+       }
+       // If x is -1, the result is -∞.
+       if (x === -1) {
+               return -Infinity;
+       }
+       // If x is +1, the result is +∞.
+       if (x === 1) {
+               return Infinity;
+       }
+       // If x is +0, the result is +0.
+       if (x === 0 && 1/x === Infinity) {
+               return 0;
+       }
+       // If x is -0, the result is -0.
+       if (x === 0 && 1/x === -Infinity) {
+               return -0;
+       }
+       return Math.log((1 + x) / (1 - x)) / 2;
+});

 
 }
 
 
 }
 

-if (!('from' in Array && (function () {
-       try {
-               Array.from({ length: -Infinity });
+if (!("cbrt"in Math
+)) {

 
 

-               return true;
-       } catch (e) {
-               return false;
+// Math.cbrt
+/* global CreateMethodProperty */
+// 20.2.2.9. Math.cbrt ( x )
+CreateMethodProperty(Math, 'cbrt', function cbrt(x) {
+       // If x is NaN, the result is NaN.
+       if (isNaN(x)) {
+               return NaN;

        }
        }

-}()))) {
-
-// Array.from
-/* globals
-       IsCallable, GetMethod, Symbol, IsConstructor, Construct, ArrayCreate, GetIterator, IteratorClose,
-       ToString, IteratorStep, IteratorValue, Call, CreateDataPropertyOrThrow, ToObject, ToLength, Get, CreateMethodProperty
-*/
-(function () {
-       var toString = Object.prototype.toString;
-       var stringMatch = String.prototype.match;
-       // A cross-realm friendly way to detect if a value is a String object or literal.
-       function isString(value) {
-               if (typeof value === 'string') { return true; }
-               if (typeof value !== 'object') { return false; }
-               return toString.call(value) === '[object String]';
+       // If x is +0, the result is +0.
+       if (x === 0 && 1/x === Infinity) {
+               return 0;

        }
        }

+       // If x is -0, the result is -0.
+       if (x === 0 && 1/x === -Infinity) {
+               return -0;
+       }
+       // If x is +∞, the result is +∞.
+       if (x === Infinity) {
+               return Infinity;
+       }
+       // If x is -∞, the result is -∞.
+       if (x === -Infinity) {
+               return -Infinity;
+       }
+       var y = Math.pow(Math.abs(x), 1 / 3);
+       return x < 0 ? -y : y;
+});

 
 

-       // 22.1.2.1. Array.from ( items [ , mapfn [ , thisArg ] ] )
-       CreateMethodProperty(Array, 'from', function from(items /* [ , mapfn [ , thisArg ] ] */) { // eslint-disable-line no-undef
-               // 1. Let C be the this value.
-               var C = this;
-               // 2. If mapfn is undefined, let mapping be false.
-               var mapfn = arguments.length > 1 ? arguments[1] : undefined;
-               if (mapfn === undefined) {
-                       var mapping = false;
-                       // 3. Else,
-               } else {
-                       // a. If IsCallable(mapfn) is false, throw a TypeError exception.
-                       if (IsCallable(mapfn) === false) {
-                               throw new TypeError(Object.prototype.toString.call(mapfn) + ' is not a function.');
-                       }
-                       // b. If thisArg is present, let T be thisArg; else let T be undefined.
-                       var thisArg = arguments.length > 2 ? arguments[2] : undefined;
-                       if (thisArg !== undefined) {
-                               var T = thisArg;
-                       } else {
-                               T = undefined;
-                       }
-                       // c. Let mapping be true.
-                       mapping = true;
+}

 
 

-               }
-               // 4. Let usingIterator be ? GetMethod(items, @@iterator).
-               var usingIterator = GetMethod(items, Symbol.iterator);
-               // 5. If usingIterator is not undefined, then
-               if (usingIterator !== undefined) {
-                       // a. If IsConstructor(C) is true, then
-                       if (IsConstructor(C)) {
-                               // i. Let A be ? Construct(C).
-                               var A = Construct(C);
-                               // b. Else,
-                       } else {
-                               // i. Let A be ! ArrayCreate(0).
-                               A = ArrayCreate(0);
-                       }
-                       // c. Let iteratorRecord be ? GetIterator(items, usingIterator).
-                       var iteratorRecord = GetIterator(items, usingIterator);
-                       // d. Let k be 0.
-                       var k = 0;
-                       // e. Repeat,
-                       while (true) {
-                               // i. If k ≥ 2^53-1, then
-                               if (k >= (Math.pow(2, 53) - 1)) {
-                                       // 1. Let error be Completion{[[Type]]: throw, [[Value]]: a newly created TypeError object, [[Target]]: empty}.
-                                       var error = new TypeError('Iteration count can not be greater than or equal 9007199254740991.');
-                                       // 2. Return ? IteratorClose(iteratorRecord, error).
-                                       return IteratorClose(iteratorRecord, error);
-                               }
-                               // ii. Let Pk be ! ToString(k).
-                               var Pk = ToString(k);
-                               // iii. Let next be ? IteratorStep(iteratorRecord).
-                               var next = IteratorStep(iteratorRecord);
-                               // iv. If next is false, then
-                               if (next === false) {
-                                       // 1. Perform ? Set(A, "length", k, true).
-                                       A["length"] = k;
-                                       // 2. Return A.
-                                       return A;
-                               }
-                               // v. Let nextValue be ? IteratorValue(next).
-                               var nextValue = IteratorValue(next);
-                               // vi. If mapping is true, then
-                               if (mapping) {
-                                       try {
-                                               // Polyfill.io - The try catch accounts for step 2.
-                                               // 1. Let mappedValue be Call(mapfn, T, « nextValue, k »).
-                                               var mappedValue = Call(mapfn, T, [nextValue, k]);
-                                               // 2. If mappedValue is an abrupt completion, return ? IteratorClose(iteratorRecord, mappedValue).
-                                               // 3. Let mappedValue be mappedValue.[[Value]].
-                                       } catch (e) {
-                                               return IteratorClose(iteratorRecord, e);
-                                       }
+if (!("clz32"in Math
+)) {

 
 

-                                       // vii. Else, let mappedValue be nextValue.
-                               } else {
-                                       mappedValue = nextValue;
-                               }
-                               try {
-                                       // Polyfill.io - The try catch accounts for step ix.
-                                       // viii. Let defineStatus be CreateDataPropertyOrThrow(A, Pk, mappedValue).
-                                       CreateDataPropertyOrThrow(A, Pk, mappedValue);
-                                       // ix. If defineStatus is an abrupt completion, return ? IteratorClose(iteratorRecord, defineStatus).
-                               } catch (e) {
-                                       return IteratorClose(iteratorRecord, e);
-                               }
-                               // x. Increase k by 1.
-                               k = k + 1;
-                       }
-               }
-               // 6. NOTE: items is not an Iterable so assume it is an array-like object.
-               // 7. Let arrayLike be ! ToObject(items).
-               // Polyfill.io - For Strings we need to split astral symbols into surrogate pairs.
-               if (isString(items)) {
-                       var arrayLike = stringMatch.call(items, /[\uD800-\uDBFF][\uDC00-\uDFFF]?|[^\uD800-\uDFFF]|./g) || [];
-               } else {
-                       arrayLike = ToObject(items);
-               }
-               // 8. Let len be ? ToLength(? Get(arrayLike, "length")).
-               var len = ToLength(Get(arrayLike, "length"));
-               // 9. If IsConstructor(C) is true, then
-               if (IsConstructor(C)) {
-                       // a. Let A be ? Construct(C, « len »).
-                       A = Construct(C, [len]);
-                       // 10. Else,
-               } else {
-                       // a. Let A be ? ArrayCreate(len).
-                       A = ArrayCreate(len);
-               }
-               // 11. Let k be 0.
-               k = 0;
-               // 12. Repeat, while k < len
-               while (k < len) {
-                       // a. Let Pk be ! ToString(k).
-                       Pk = ToString(k);
-                       // b. Let kValue be ? Get(arrayLike, Pk).
-                       var kValue = Get(arrayLike, Pk);
-                       // c. If mapping is true, then
-                       if (mapping === true) {
-                               // i. Let mappedValue be ? Call(mapfn, T, « kValue, k »).
-                               mappedValue = Call(mapfn, T, [kValue, k]);
-                               // d. Else, let mappedValue be kValue.
-                       } else {
-                               mappedValue = kValue;
-                       }
-                       // e. Perform ? CreateDataPropertyOrThrow(A, Pk, mappedValue).
-                       CreateDataPropertyOrThrow(A, Pk, mappedValue);
-                       // f. Increase k by 1.
-                       k = k + 1;
-               }
-               // 13. Perform ? Set(A, "length", len, true).
-               A["length"] = len;
-               // 14. Return A.
-               return A;
-       });
-}());
+// Math.clz32
+/* global CreateMethodProperty, ToUint32 */
+// 20.2.2.11. Math.clz32 ( x )
+CreateMethodProperty(Math, 'clz32', function clz32(x) {
+       // 1. Let n be ToUint32(x).
+       var n = ToUint32(x);
+       // 2. Let p be the number of leading zero bits in the 32-bit binary representation of n.
+       var p = n ? 32 - n.toString(2).length : 32;
+       // 3. Return p.
+       return p;
+});

 
 }
 
 
 }
 

-if (!('of' in Array)) {
+if (!("cosh"in Math
+)) {

 
 

-// Array.of
-/* global ArrayCreate, Construct, CreateDataPropertyOrThrow, CreateMethodProperty, IsConstructor, ToString */
-// 22.1.2.3. Array.of ( ...items )
-CreateMethodProperty(Array, 'of', function of() {
-       // 1. Let len be the actual number of arguments passed to this function.
-       var len = arguments.length;
-       // 2. Let items be the List of arguments passed to this function.
-       var items = arguments;
-       // 3. Let C be the this value.
-       var C = this;
-       // 4. If IsConstructor(C) is true, then
-       if (IsConstructor(C)) {
-               // a. Let A be ? Construct(C, « len »).
-               var A = Construct(C, [len]);
-               // 5. Else,
-       } else {
-               // a. Let A be ? ArrayCreate(len).
-               var A = ArrayCreate(len);
+// Math.cosh
+/* global CreateMethodProperty */
+// 20.2.2.1. 3Math.cosh ( x )
+CreateMethodProperty(Math, 'cosh', function cosh(x) {
+       // If x is NaN, the result is NaN.
+       if (isNaN(x)) {
+               return NaN;

        }
        }

-       // 6. Let k be 0.
-       var k = 0;
-       // 7. Repeat, while k < len
-       while (k < len) {
-               // a. Let kValue be items[k].
-               var kValue = items[k];
-               // b. Let Pk be ! ToString(k).
-               var Pk = ToString(k);
-               // c. Perform ? CreateDataPropertyOrThrow(A, Pk, kValue).
-               CreateDataPropertyOrThrow(A, Pk, kValue);
-               // d. Increase k by 1.
-               var k = k + 1;
-
+       // If x is +0, the result is 1.
+       if (x === 0 && 1/x === Infinity) {
+               return 1;

        }
        }

-       // 8. Perform ? Set(A, "length", len, true)
-       A["length"] = len;
-       // 9. Return A.
-       return A;
+       // If x is -0, the result is 1.
+       if (x === 0 && 1/x === -Infinity) {
+               return 1;
+       }
+       // If x is +∞, the result is +∞.
+       if (x === Infinity) {
+               return Infinity;
+       }
+       // If x is -∞, the result is +∞.
+       if (x === -Infinity) {
+               return Infinity;
+       }
+       x = Math.abs(x);
+       if (x > 709) {
+               var y = Math.exp(0.5 * x);
+               return y / 2 * y;
+       }
+       var y = Math.exp(x);
+       return (y + 1 / y) / 2;

 });
 
 }
 
 });
 
 }
 

-if (!('assign' in Object)) {
-
-// Object.assign
-/* global CreateMethodProperty, Get, ToObject */
-// 19.1.2.1 Object.assign ( target, ...sources )
-CreateMethodProperty(Object, 'assign', function assign(target, source) { // eslint-disable-line no-unused-vars
-       // 1. Let to be ? ToObject(target).
-       var to = ToObject(target);
+if (!("expm1"in Math
+)) {

 
 

-       // 2. If only one argument was passed, return to.
-       if (arguments.length === 1) {
-               return to;
+// Math.expm1
+/* global CreateMethodProperty */
+// 20.2.2.15. Math.expm1 ( x )
+CreateMethodProperty(Math, 'expm1', function expm1(x) {
+       // If x is NaN, the result is NaN.
+       if (isNaN(x)) {
+               return NaN;
+       }
+       // If x is +0, the result is +0.
+       if (x === 0 && 1/x === Infinity) {
+               return 0;
+       }
+       // If x is -0, the result is -0.
+       if (x === 0 && 1/x === -Infinity) {
+               return -0;
+       }
+       // If x is +∞, the result is +∞.
+       if (x === Infinity) {
+               return Infinity;
+       }
+       // If x is -∞, the result is -1.
+       if (x === -Infinity) {
+               return -1;

        }
 
        }
 

-       // 3. Let sources be the List of argument values starting with the second argument
-       var sources = Array.prototype.slice.call(arguments, 1);
-
-       // 4. For each element nextSource of sources, in ascending index order, do
-       var index1;
-       var index2;
-       var keys;
-       var from;
-       for (index1 = 0; index1 < sources.length; index1++) {
-               var nextSource = sources[index1];
-               // a. If nextSource is undefined or null, let keys be a new empty List.
-               if (nextSource === undefined || nextSource === null) {
-                       keys = [];
-                       // b. Else,
-               } else {
-                       // i. Let from be ! ToObject(nextSource).
-                       from = ToObject(nextSource);
-                       // ii. Let keys be ? from.[[OwnPropertyKeys]]().
-                       /*
-                               This step in our polyfill is not complying with the specification.
-                               [[OwnPropertyKeys]] is meant to return ALL keys, including non-enumerable and symbols.
-                               TODO: When we have Reflect.ownKeys, use that instead as it is the userland equivalent of [[OwnPropertyKeys]].
-                       */
-                       keys = Object.keys(from);
-               }
-
-               // c. For each element nextKey of keys in List order, do
-               for (index2 = 0; index2 < keys.length; index2++) {
-                       var nextKey = keys[index2];
-                       // i. Let desc be ? from.[[GetOwnProperty]](nextKey).
-                       var desc = Object.getOwnPropertyDescriptor(from, nextKey);
-                       // ii. If desc is not undefined and desc.[[Enumerable]] is true, then
-                       if (desc !== undefined && desc.enumerable) {
-                               // 1. Let propValue be ? Get(from, nextKey).
-                               var propValue = Get(from, nextKey);
-                               // 2. Perform ? Set(to, nextKey, propValue, true).
-                               to[nextKey] = propValue;
-                       }
-               }
+       if (x > -1e-6 && x < 1e-6) {
+               return x + x * x / 2;
+       } else {
+               return Math.exp(x) - 1;

        }
        }

-       // 5. Return to.
-       return to;

 });
 
 }
 
 });
 
 }
 

-if (!('Symbol' in this && 'toStringTag' in this.Symbol)) {
+if (!("fround"in Math
+)) {

 
 

-// Symbol.toStringTag
-/* global Symbol */
-Object.defineProperty(Symbol, 'toStringTag', {
-       value: Symbol('toStringTag')
+// Math.fround
+/* global Float32Array, CreateMethodProperty */
+// 20.2.2.17 Math.fround ( x )
+CreateMethodProperty(Math, 'fround', function (x) {
+       // 1. If x is NaN, return NaN.
+       if (isNaN(x)) {
+               return NaN;
+       }
+       // 2. If x is one of +0, -0, +∞, -∞, return x.
+       if (1 / x === +Infinity || 1 / x === -Infinity || x === +Infinity || x === -Infinity) {
+               return x;
+       }
+       // 3. Let x32 be the result of converting x to a value in IEEE 754-2008 binary32 format using roundTiesToEven.
+       // 4. Let x64 be the result of converting x32 to a value in IEEE 754-2008 binary64 format.
+       // 5. Return the ECMAScript Number value corresponding to x64.
+       return (new Float32Array([x]))[0];

 });
 
 }
 
 });
 
 }
 

+if (!("hypot"in Math
+)) {

 
 

-// _Iterator
-/* global Symbol */
-// A modification of https://github.com/medikoo/es6-iterator
-// Copyright (C) 2013-2015 Mariusz Nowak (www.medikoo.com)
-
-var Iterator = (function () { // eslint-disable-line no-unused-vars
-       var clear = function () {
-               this.length = 0;
-               return this;
-       };
-       var callable = function (fn) {
-               if (typeof fn !== 'function') throw new TypeError(fn + " is not a function");
-               return fn;
-       };
+// Math.hypot
+/* global CreateMethodProperty */
+// 20.2.2.18. Math.hypot ( value1, value2, ...values )
+CreateMethodProperty(Math, 'hypot', function hypot(value1, value2) { // eslint-disable-line no-unused-vars
+       // If no arguments are passed, the result is +0.
+       if (arguments.length === 0) {
+               return 0;
+       }
+       var y = 0;
+       var max = 0;
+       for (var i = 0; i < arguments.length; ++i) {
+               // If any argument is +∞, the result is +∞.
+               if (arguments[i] === Infinity) {
+                       return Infinity;
+               }

 
 

-       var Iterator = function (list, context) {
-               if (!(this instanceof Iterator)) {
-                       return new Iterator(list, context);
+               // If any argument is -∞, the result is +∞.
+               if (arguments[i] === -Infinity) {
+                       return Infinity;

                }
                }

-               Object.defineProperties(this, {
-                       __list__: {
-                               writable: true,
-                               value: list
-                       },
-                       __context__: {
-                               writable: true,
-                               value: context
-                       },
-                       __nextIndex__: {
-                               writable: true,
-                               value: 0
-                       }
-               });
-               if (!context) return;
-               callable(context.on);
-               context.on('_add', this._onAdd.bind(this));
-               context.on('_delete', this._onDelete.bind(this));
-               context.on('_clear', this._onClear.bind(this));
-       };

 
 

-       Object.defineProperties(Iterator.prototype, Object.assign({
-               constructor: {
-                       value: Iterator,
-                       configurable: true,
-                       enumerable: false,
-                       writable: true
-               },
-               _next: {
-                       value: function () {
-                               var i;
-                               if (!this.__list__) return;
-                               if (this.__redo__) {
-                                       i = this.__redo__.shift();
-                                       if (i !== undefined) return i;
-                               }
-                               if (this.__nextIndex__ < this.__list__.length) return this.__nextIndex__++;
-                               this._unBind();
-                       },
-                       configurable: true,
-                       enumerable: false,
-                       writable: true
-               },
-               next: {
-                       value: function () {
-                               return this._createResult(this._next());
-                       },
-                       configurable: true,
-                       enumerable: false,
-                       writable: true
-               },
-               _createResult: {
-                       value: function (i) {
-                               if (i === undefined) return {
-                                       done: true,
-                                       value: undefined
-                               };
-                               return {
-                                       done: false,
-                                       value: this._resolve(i)
-                               };
-                       },
-                       configurable: true,
-                       enumerable: false,
-                       writable: true
-               },
-               _resolve: {
-                       value: function (i) {
-                               return this.__list__[i];
-                       },
-                       configurable: true,
-                       enumerable: false,
-                       writable: true
-               },
-               _unBind: {
-                       value: function () {
-                               this.__list__ = null;
-                               delete this.__redo__;
-                               if (!this.__context__) return;
-                               this.__context__.off('_add', this._onAdd.bind(this));
-                               this.__context__.off('_delete', this._onDelete.bind(this));
-                               this.__context__.off('_clear', this._onClear.bind(this));
-                               this.__context__ = null;
-                       },
-                       configurable: true,
-                       enumerable: false,
-                       writable: true
-               },
-               toString: {
-                       value: function () {
-                               return '[object Iterator]';
-                       },
-                       configurable: true,
-                       enumerable: false,
-                       writable: true
+               // If no argument is +∞ or -∞, and any argument is NaN, the result is NaN.
+               // If all arguments are either +0 or -0, the result is +0.
+               // Polyfill.io - The two conditions above are handled in the math.
+
+               var arg = Math.abs(Number(arguments[i]));
+               if (arg > max) {
+                       y = y * Math.pow(max / arg, 2);
+                       max = arg;

                }
                }

-       }, {
-               _onAdd: {
-                       value: function (index) {
-                               if (index >= this.__nextIndex__) return;
-                               ++this.__nextIndex__;
-                               if (!this.__redo__) {
-                                       Object.defineProperty(this, '__redo__', {
-                                               value: [index],
-                                               configurable: true,
-                                               enumerable: false,
-                                               writable: false
-                                       });
-                                       return;
-                               }
-                               this.__redo__.forEach(function (redo, i) {
-                                       if (redo >= index) this.__redo__[i] = ++redo;
-                               }, this);
-                               this.__redo__.push(index);
-                       },
-                       configurable: true,
-                       enumerable: false,
-                       writable: true
-               },
-               _onDelete: {
-                       value: function (index) {
-                               var i;
-                               if (index >= this.__nextIndex__) return;
-                               --this.__nextIndex__;
-                               if (!this.__redo__) return;
-                               i = this.__redo__.indexOf(index);
-                               if (i !== -1) this.__redo__.splice(i, 1);
-                               this.__redo__.forEach(function (redo, i) {
-                                       if (redo > index) this.__redo__[i] = --redo;
-                               }, this);
-                       },
-                       configurable: true,
-                       enumerable: false,
-                       writable: true
-               },
-               _onClear: {
-                       value: function () {
-                               if (this.__redo__) clear.call(this.__redo__);
-                               this.__nextIndex__ = 0;
-                       },
-                       configurable: true,
-                       enumerable: false,
-                       writable: true
+               if (arg !== 0 || max !== 0) {
+                       y = y + Math.pow(arg / max, 2);

                }
                }

-       }));
+       }
+
+  return max * Math.sqrt(y);
+});
+
+}

 
 

-       Object.defineProperty(Iterator.prototype, Symbol.iterator, {
-               value: function () {
-                       return this;
-               },
-               configurable: true,
-               enumerable: false,
-               writable: true
-       });
-       Object.defineProperty(Iterator.prototype, Symbol.toStringTag, {
-               value: 'Iterator',
-               configurable: false,
-               enumerable: false,
-               writable: true
-       });
+if (!("imul"in Math
+)) {

 
 

-       return Iterator;
-}());
+// Math.imul
+/* global CreateMethodProperty, ToUint32 */
+// 20.2.2.19. Math.imul ( x, y )
+CreateMethodProperty(Math, 'imul', function imul(x, y) {
+       // 1. Let a be ToUint32(x).
+       var a = ToUint32(x);
+       // 2. Let b be ToUint32(y).
+       var b = ToUint32(y);
+       var UINT16 = 0xffff;
+       var aHigh = a >>> 16 & UINT16;
+       var aLow = UINT16 & a;
+       var bHigh = b >>> 16 & UINT16;
+       var bLow = UINT16 & b;
+       // the shift by 0 fixes the sign on the high part
+       // the final |0 converts the unsigned value into a signed value
+       return aLow * bLow + (aHigh * bLow + aLow * bHigh << 16 >>> 0) | 0;
+});
+}

 
 

-// Object.setPrototypeOf
-/* global CreateMethodProperty */
-// ES6-shim 0.16.0 (c) 2013-2014 Paul Miller (http://paulmillr.com)
-// ES6-shim may be freely distributed under the MIT license.
-// For more details and documentation:
-// https://github.com/paulmillr/es6-shim/
+if (!("log10"in Math
+)) {

 
 

- // NOTE:  This versions needs object ownership
-  //        because every promoted object needs to be reassigned
-  //        otherwise uncompatible browsers cannot work as expected
-  //
-  // NOTE:  This might need es5-shim or polyfills upfront
-  //        because it's based on ES5 API.
-  //        (probably just an IE <= 8 problem)
-  //
-  // NOTE:  nodejs is fine in version 0.8, 0.10, and future versions.
-(function () {
-       if (Object.setPrototypeOf) { return; }
+// Math.log10
+/* global CreateMethodProperty */
+// 20.2.2.22. Math.log10 ( x )
+CreateMethodProperty(Math, 'log10', function log10(x) {
+       return Math.log(x) / Math.LN10;
+});

 
 

-       /*jshint proto: true */
-       // @author    Andrea Giammarchi - @WebReflection
+}

 
 

-       var getOwnPropertyNames = Object.getOwnPropertyNames;
-       var getOwnPropertyDescriptor = Object.getOwnPropertyDescriptor;
-       var create = Object.create;
-       var defineProperty = Object.defineProperty;
-       var getPrototypeOf = Object.getPrototypeOf;
-       var objProto = Object.prototype;
+if (!("log1p"in Math
+)) {

 
 

-       var copyDescriptors = function (target, source) {
-               // define into target descriptors from source
-               getOwnPropertyNames(source).forEach(function (key) {
-                       defineProperty(
-                               target,
-                               key,
-                               getOwnPropertyDescriptor(source, key)
-                       );
-               });
-               return target;
-       };
-       // used as fallback when no promotion is possible
-       var createAndCopy = function setPrototypeOf(origin, proto) {
-               return copyDescriptors(create(proto), origin);
-       };
-       var set, sPOf;
-       try {
-               // this might fail for various reasons
-               // ignore if Chrome cought it at runtime
-               set = getOwnPropertyDescriptor(objProto, '__proto__').set;
-               set.call({}, null);
-               // setter not poisoned, it can promote
-               // Firefox, Chrome
-               sPOf = function setPrototypeOf(origin, proto) {
-                       set.call(origin, proto);
-                       return origin;
-               };
-       } catch (e) {
-               // do one or more feature detections
-               set = { __proto__: null };
-               // if proto does not work, needs to fallback
-               // some Opera, Rhino, ducktape
-               if (set instanceof Object) {
-                       sPOf = createAndCopy;
-               } else {
-                       // verify if null objects are buggy
-                       /* eslint-disable no-proto */
-                       set.__proto__ = objProto;
-                       /* eslint-enable no-proto */
-                       // if null objects are buggy
-                       // nodejs 0.8 to 0.10
-                       if (set instanceof Object) {
-                               sPOf = function setPrototypeOf(origin, proto) {
-                                       // use such bug to promote
-                                       /* eslint-disable no-proto */
-                                       origin.__proto__ = proto;
-                                       /* eslint-enable no-proto */
-                                       return origin;
-                               };
-                       } else {
-                               // try to use proto or fallback
-                               // Safari, old Firefox, many others
-                               sPOf = function setPrototypeOf(origin, proto) {
-                                       // if proto is not null
-                                       if (getPrototypeOf(origin)) {
-                                               // use __proto__ to promote
-                                               /* eslint-disable no-proto */
-                                               origin.__proto__ = proto;
-                                               /* eslint-enable no-proto */
-                                               return origin;
-                                       } else {
-                                               // otherwise unable to promote: fallback
-                                               return createAndCopy(origin, proto);
-                                       }
-                               };
-                       }
+// Math.log1p
+/* global CreateMethodProperty */
+// 20.2.2.21. Math.log1p ( x )
+CreateMethodProperty(Math, 'log1p', function log1p(x) {
+       x = Number(x);
+       if (-1 < x && x < 1) {
+               // Polyfill.io - For numbers in the range −1 < x < 1
+               // Because we are using log, the precision of the result will be identical to log(1).
+               // To fix this we avoid using log and use the Taylor Series expansion of log.
+               // This series converges when |x| < 1. As we can not sum to infinity,
+               // we instead sum the first 300 parts of the series to give a close approximation.
+               // |x|<1, log(1+x) = x - x^2/2 + x^3/3 - ... + (-1)^(n-1)*x^n/n + ...
+               var y = x;
+               for (var i = 2; i <= 300; i++) {
+                       y += Math.pow((-1), (i - 1)) * Math.pow(x, i) / i;

                }
                }

+               return y;

        }
        }

-       CreateMethodProperty(Object, 'setPrototypeOf', sPOf);
-}());

 
 

-// _ESAbstract.RequireObjectCoercible
-// 7.2.1. RequireObjectCoercible ( argument )
-// The abstract operation ToObject converts argument to a value of type Object according to Table 12:
-// Table 12: ToObject Conversions
-/*
-|----------------------------------------------------------------------------------------------------------------------------------------------------|
-| Argument Type | Result                                                                                                                             |
-|----------------------------------------------------------------------------------------------------------------------------------------------------|
-| Undefined     | Throw a TypeError exception.                                                                                                       |
-| Null          | Throw a TypeError exception.                                                                                                       |
-| Boolean       | Return argument.                                                                                                                   |
-| Number        | Return argument.                                                                                                                   |
-| String        | Return argument.                                                                                                                   |
-| Symbol        | Return argument.                                                                                                                   |
-| Object        | Return argument.                                                                                                                   |
-|----------------------------------------------------------------------------------------------------------------------------------------------------|
-*/
-function RequireObjectCoercible(argument) { // eslint-disable-line no-unused-vars
-       if (argument === null || argument === undefined) {
-               throw TypeError();
-       }
-  return argument;
+       return Math.log(1 + x);
+});

 }
 
 }
 

-// _ESAbstract.IsRegExp
-/* global Type, Get, ToBoolean */
-// 7.2.8. IsRegExp ( argument )
-function IsRegExp(argument) { // eslint-disable-line no-unused-vars
-       // 1. If Type(argument) is not Object, return false.
-       if (Type(argument) !== 'object') {
-               return false;
+if (!("log2"in Math
+)) {
+
+// Math.log2
+/* global CreateMethodProperty */
+// 20.2.2.23. Math.log2 ( x )
+CreateMethodProperty(Math, 'log2', function log2(x) {
+       return Math.log(x) / Math.LN2;
+});
+
+}
+
+if (!("sign"in Math
+)) {
+
+// Math.sign
+/* global CreateMethodProperty */
+// 20.2.2.29. Math.sign ( x )
+CreateMethodProperty(Math, 'sign', function sign(x) {
+       var x = Number(x);
+       // If x is NaN, the result is NaN.
+       if (isNaN(x)) {
+               return NaN;

        }
        }

-       // 2. Let matcher be ? Get(argument, @@match).
-       var matcher = 'Symbol' in this && 'match' in this.Symbol ? Get(argument, this.Symbol.match) : undefined;
-       // 3. If matcher is not undefined, return ToBoolean(matcher).
-       if (matcher !== undefined) {
-               return ToBoolean(matcher);
+       // If x is -0, the result is -0.
+       if (1 / x === -Infinity) {
+               return -0;

        }
        }

-       // 4. If argument has a [[RegExpMatcher]] internal slot, return true.
-       try {
-               var lastIndex = argument.lastIndex;
-               argument.lastIndex = 0;
-               RegExp.prototype.exec.call(argument);
-               return true;
-       } catch (e) {} finally {
-               argument.lastIndex = lastIndex;
+       // If x is +0, the result is +0.
+       if (1 / x === Infinity) {
+               return 0;

        }
        }

-       // 5. Return false.
-       return false;
+       // If x is negative and not -0, the result is -1.
+       if (x < 0) {
+               return -1;
+       }
+       // If x is positive and not +0, the result is +1.
+       if (x > 0) {
+               return 1;
+       }
+});
+

 }
 }

-if (!('includes' in String.prototype)) {

 
 

-// String.prototype.includes
-/* global CreateMethodProperty, IsRegExp, RequireObjectCoercible, ToInteger, ToString */
-// 21.1.3.7. String.prototype.includes ( searchString [ , position ] )
-CreateMethodProperty(String.prototype, 'includes', function includes(searchString /* [ , position ] */) {
-       'use strict';
-       var position = arguments.length > 1 ? arguments[1] : undefined;
-       // 1. Let O be ? RequireObjectCoercible(this value).
-       var O = RequireObjectCoercible(this);
-       // 2. Let S be ? ToString(O).
-       var S = ToString(O);
-       // 3. Let isRegExp be ? IsRegExp(searchString).
-       var isRegExp = IsRegExp(searchString);
-       // 4. If isRegExp is true, throw a TypeError exception.
-       if (isRegExp) {
-               throw new TypeError('First argument to String.prototype.includes must not be a regular expression');
-       }
-       // 5. Let searchStr be ? ToString(searchString).
-       var searchStr = ToString(searchString);
-       // 6. Let pos be ? ToInteger(position). (If position is undefined, this step produces the value 0.)
-       var pos = ToInteger(position);
-       // 7. Let len be the length of S.
-       var len = S.length;
-       // 8. Let start be min(max(pos, 0), len).
-       var start = Math.min(Math.max(pos, 0), len);
-       // 9. Let searchLen be the length of searchStr.
-       // var searchLength = searchStr.length;
-       // 10. If there exists any integer k not smaller than start such that k + searchLen is not greater than len, and for all nonnegative integers j less than searchLen, the code unit at index k+j within S is the same as the code unit at index j within searchStr, return true; but if there is no such integer k, return false.
-       return String.prototype.indexOf.call(S, searchStr, start) !== -1;
+if (!("sinh"in Math
+)) {
+
+// Math.sinh
+/* global CreateMethodProperty */
+// 20.2.2.31. Math.sinh ( x )
+CreateMethodProperty(Math, 'sinh', function sinh(x) {
+       var s = (x < 0) ? -1 : 1;
+       var absx = Math.abs(x);
+       if (absx < 22) {
+               if (absx < Math.pow(2, -28)) {
+                       return x;
+               }
+               var t = Math.exp(absx) - 1;
+               if (absx < 1) {
+                       return (s * (2 * t - t * t / (t + 1)))/2;
+               }
+               return (s * (t + t / (t + 1)))/2;
+       }
+       if (absx < 709.7822265625) {
+               return (s * Math.exp(absx))/2;
+       }
+       var w = Math.exp(0.5 * absx);
+       var t = (s * w)/2;
+       return t * w;

 });
 
 }
 
 });
 
 }
 

+if (!("tanh"in Math
+)) {

 
 

-// _ArrayIterator
-/* global Iterator */
-// A modification of https://github.com/medikoo/es6-iterator
-// Copyright (C) 2013-2015 Mariusz Nowak (www.medikoo.com)
+// Math.tanh
+/* global CreateMethodProperty */
+// 20.2.2.34. Math.tanh ( x )
+CreateMethodProperty(Math, 'tanh', function tanh(x) {
+       var y;

 
 

-var ArrayIterator = (function() { // eslint-disable-line no-unused-vars
+       return x === Infinity ? 1 : x === -Infinity ? -1 : (y = Math.exp(2 * x), (y - 1) / (y + 1));
+});

 
 

-       var ArrayIterator = function(arr, kind) {
-               if (!(this instanceof ArrayIterator)) return new ArrayIterator(arr, kind);
-               Iterator.call(this, arr);
-               if (!kind) kind = 'value';
-               else if (String.prototype.includes.call(kind, 'key+value')) kind = 'key+value';
-               else if (String.prototype.includes.call(kind, 'key')) kind = 'key';
-               else kind = 'value';
-               Object.defineProperty(this, '__kind__', {
-                       value: kind,
-                       configurable: false,
-                       enumerable: false,
-                       writable: false
-               });
-       };
-       if (Object.setPrototypeOf) Object.setPrototypeOf(ArrayIterator, Iterator.prototype);
+}

 
 

-       ArrayIterator.prototype = Object.create(Iterator.prototype, {
-               constructor: {
-                       value: ArrayIterator,
-                       configurable: true,
-                       enumerable: false,
-                       writable: true
-               },
-               _resolve: {
-                       value: function(i) {
-                               if (this.__kind__ === 'value') return this.__list__[i];
-                               if (this.__kind__ === 'key+value') return [i, this.__list__[i]];
-                               return i;
-                       },
-                       configurable: true,
-                       enumerable: false,
-                       writable: true
-               },
-               toString: {
-                       value: function() {
-                               return '[object Array Iterator]';
-                       },
-                       configurable: true,
-                       enumerable: false,
-                       writable: true
-               }
-       });
+if (!("trunc"in Math
+)) {

 
 

-       return ArrayIterator;
-}());
-if (!('values' in Array.prototype)) {
+// Math.trunc
+/* global CreateMethodProperty */
+CreateMethodProperty(Math, 'trunc', function trunc(x) {
+       return x < 0 ? Math.ceil(x) : Math.floor(x);
+});

 
 

-// Array.prototype.values
-/* global CreateMethodProperty, Symbol, ToObject */
-// 22.1.3.30/ Array.prototype.values ( )
-// Polyfill.io - Firefox, Chrome and Opera have Array.prototype[Symbol.iterator], which is the exact same function as Array.prototype.values.
-if ('Symbol' in this && 'iterator' in Symbol && typeof Array.prototype[Symbol.iterator] === 'function') {
-       CreateMethodProperty(Array.prototype, 'values', Array.prototype[Symbol.iterator]);
-} else {
-       CreateMethodProperty(Array.prototype, 'values', function values () {
-               // 1. Let O be ? ToObject(this value).
-               var O = ToObject(this);
-               // 2. Return CreateArrayIterator(O, "value").
-               // TODO: Add CreateArrayIterator
-               return new ArrayIterator(O, 'value');
-       });

 }
 
 }
 

+if (!("isFinite"in Number
+)) {
+
+// Number.isFinite
+/* global CreateMethodProperty, Type */
+(function () {
+       var that = this;
+       // 20.1.2.2. Number.isFinite ( number )
+       CreateMethodProperty(Number, 'isFinite', function isFinite(number) {
+               // 1. If Type(number) is not Number, return false.
+               if (Type(number) !== 'number') {
+                       return false;
+               }
+               // 2. If number is NaN, +∞, or -∞, return false.
+               // 3. Otherwise, return true.
+               // Polyfill.io - We use isFinite as it implements steps 2 and 3.
+               return that.isFinite(number);
+       });
+}());
+

 }
 
 }
 

-if (!('Symbol' in this && 'iterator' in this.Symbol && !!Array.prototype[Symbol.iterator])) {
+if (!("isInteger"in Number
+)) {

 
 

-// Array.prototype.@@iterator
-/* global Symbol, CreateMethodProperty */
-// 22.1.3.31. Array.prototype [ @@iterator ] ( )
-// The initial value of the @@iterator property is the same function object as the initial value of the  Array.prototype.values property.
-CreateMethodProperty(Array.prototype, Symbol.iterator, Array.prototype.values);
+// Number.isInteger
+/* global CreateMethodProperty, ToInteger, Type */
+// 20.1.2.3. Number.isInteger ( number )
+CreateMethodProperty(Number, 'isInteger', function isInteger(number) {
+       // 1. If Type(number) is not Number, return false.
+       if (Type(number) !== 'number') {
+               return false;
+       }
+       // 2. If number is NaN, +∞, or -∞, return false.
+       if (isNaN(number) || number === Infinity || number === -Infinity) {
+               return false;
+       }
+       // 3. Let integer be ToInteger(number).
+       var integer = ToInteger(number);
+       // 4. If integer is not equal to number, return false.
+       if (integer !== number) {
+               return false;
+       }
+       // 5. Otherwise, return true.
+       return true;
+});

 
 }
 
 
 }
 

-if (!('copyWithin' in Array.prototype && (function () {
-       try {
-               var Parent = function Parent() {};
-               Parent.prototype[0] = 'foo';
-               var sparse = new Parent();
-               sparse[1] = 1;
-               sparse[2] = 2;
-               sparse.length = 3;
-               var result = Array.prototype.copyWithin.call(sparse, 1, 0);
-               if (result['0'] && !Object.prototype.hasOwnProperty.call(result, '0') && Object.prototype.hasOwnProperty.call(result, '1') && result[0] === 'foo' && result[1] === 'foo' && result[2] === 1 && result.length === 3) {
-                       return true;
-               } else {
+if (!("isNaN"in Number
+)) {
+
+// Number.isNaN
+/* global CreateMethodProperty, Type */
+(function () {
+       var that = this;
+       // 20.1.2.4. Number.isNaN ( number )
+       CreateMethodProperty(Number, 'isNaN', function isNaN(number) {
+               // 1. If Type(number) is not Number, return false.
+               if (Type(number) !== 'number') {

                        return false;
                }
                        return false;
                }

-       } catch (err) {
+               // 2. If number is NaN, return true.
+               if (that.isNaN(number)) {
+                       return true;
+               }
+               // 3. Otherwise, return false.

                return false;
                return false;

-       }
-}()))) {
-
-// Array.prototype.copyWithin
-/* global CreateMethodProperty, HasProperty, ToInteger */
-// 22.1.3.3 Array.prototype.copyWithin ( target, start [ , end ] )
-CreateMethodProperty(Array.prototype, 'copyWithin', function copyWithin(target, start /* [ , end ] */ ) {
-       'use strict';
-       var end = arguments[2];
+       });
+}());

 
 

-       // 22.1.3.3.1 Let O be ? ToObject(this value).
-       if (this === null || this === undefined) {
-               throw new TypeError('Cannot call method on ' + this);
-       }
+}

 
 

-       var o = Object(this);
+if (!("isSafeInteger"in Number
+)) {

 
 

-       // 22.1.3.3.2 Let len be ? ToLength(? Get(O, "length")).
-       var len = ToInteger(o.length);
-       if (len <= 0) {
-               len = 0;
+// Number.isSafeInteger
+/* global CreateMethodProperty, Type, ToInteger */
+// 20.1.2.5. Number.isSafeInteger ( number )
+CreateMethodProperty(Number, 'isSafeInteger', function isSafeInteger(number) {
+       // 1. If Type(number) is not Number, return false.
+       if (Type(number) !== 'number') {
+               return false;

        }
        }

-       if (len === Infinity) {
-               len = Math.pow(2, 53) - 1;
-       } else {
-               len = Math.min(len, Math.pow(2, 53) - 1);
+       // 2. If number is NaN, +∞, or -∞, return false.
+       if (isNaN(number) || number === Infinity || number === -Infinity) {
+               return false;

        }
        }

-       len = Math.max(len, 0);
+       // 3. Let integer be ToInteger(number).
+       var integer = ToInteger(number);
+       // 4. If integer is not equal to number, return false.
+       if (integer !== number) {
+               return false;
+       }
+       // 5. If abs(integer) ≤ 2^53-1, return true.
+       if (Math.abs(integer) <= (Math.pow(2, 53) - 1)) {
+               return true;
+       }
+       // 6. Otherwise, return false.
+       return false;
+});

 
 

-       // 22.1.3.3.3 Let relativeTarget be ? ToInteger(target).
-       var relativeTarget = ToInteger(target);
+}

 
 

-       // 22.1.3.3.4 If relativeTarget < 0, let to be max((len + relativeTarget), 0); else let to be min(relativeTarget, len).
-       var to;
-       if (relativeTarget < 0) {
-               to = Math.max(len + relativeTarget, 0);
-       } else {
-               to = Math.min(relativeTarget, len);
-       }
+if (!("parseFloat"in Number
+)) {

 
 

-       // 22.1.3.3.5 Let relativeStart be ? ToInteger(start).
-       var relativeStart = ToInteger(start);
+// Number.parseFloat
+/* global CreateMethodProperty */
+// 20.1.2.12. Number.parseFloat ( string )
+// The value of the Number.parseFloat data property is the same built-in function object that is the value of the  parseFloat property of the global object defined in 18.2.4.
+CreateMethodProperty(Number, 'parseFloat', parseFloat);

 
 

-       // 22.1.3.3.6 If relativeStart < 0, let from be max((len + relativeStart), 0); else let from be min(relativeStart, len).
-       var from;
-       if (relativeStart < 0) {
-               from = Math.max(len + relativeStart, 0);
-       } else {
-               from = Math.min(relativeStart, len);
-       }
+}

 
 

-       // 22.1.3.3.7 If end is undefined, let relativeEnd be len; else let relativeEnd be ? ToInteger(end).
-       var relativeEnd;
-       if (end === undefined) {
-               relativeEnd = len;
-       } else {
-               relativeEnd = ToInteger(end);
-       }
+if (!("parseInt"in Number
+)) {

 
 

-       // 22.1.3.3.8 If relativeEnd < 0, let final be max((len + relativeEnd), 0); else let final be min(relativeEnd, len).
-       var final;
-       if (relativeEnd < 0) {
-               final = Math.max(len + relativeEnd, 0);
-       } else {
-               final = Math.min(relativeEnd, len);
-       }
+// Number.parseInt
+/* global CreateMethodProperty */
+// 20.1.2.13. Number.parseInt ( string, radix )
+// The value of the Number.parseInt data property is the same built-in function object that is the value of the  parseInt property of the global object defined in 18.2.5.
+CreateMethodProperty(Number, 'parseInt', parseInt);
+
+}
+
+if (!("name"in Function.prototype&&"x"===function n(){}.name
+)) {
+
+// Function.prototype.name
+(function () {
+
+       var
+       accessorName = 'name',
+       fnNameMatchRegex = /^\s*function\s+([^\(\s]*)\s*/,
+       $Function = Function,
+       FunctionName = 'Function',
+       FunctionProto = $Function.prototype,
+       FunctionProtoCtor = FunctionProto.constructor,
+
+       getFunctionName = function(fn) {
+               var match, name;
+
+               if (fn === $Function || fn === FunctionProtoCtor) {
+                       name = FunctionName;
+               }
+               else if (fn !== FunctionProto) {
+                       match = ('' + fn).match(fnNameMatchRegex);
+                       name = match && match[1];
+               }
+               return name || '';
+       };

 
 

-       // 22.1.3.3.9 Let count be min(final-from, len-to).
-       var count = Math.min(final - from, len - to);

 
 

-       // 22.1.3.3.10 If from<to and to<from+count, then
-       var direction;
-       if (from < to && to < from + count) {
-               // 22.1.3.3.10.a Let direction be -1.
-               direction = -1;
+       Object.defineProperty(FunctionProto, accessorName, {
+               get: function Function$name() {
+                       var
+                       fn = this,
+                       fnName = getFunctionName(fn);

 
 

-               // 22.1.3.3.10.b Let from be from + count - 1.
-               from = from + count - 1;
+                       // Since named function definitions have immutable names, also memoize the
+                       // output by defining the `name` property directly on this Function
+                       // instance so the accessor function will not need to be invoked again.
+                       if (fn !== FunctionProto) {
+                               Object.defineProperty(fn, accessorName, {
+                                       value: fnName,
+                                       configurable: true
+                               });
+                       }

 
 

-               // 22.1.3.3.10.c Let to be to + count - 1.
-               to = to + count - 1;
-       } else {
-               // 22.1.3.3.11 Else,
-               // 22.1.3.3.11.a Let direction be 1.
-               direction = 1;
-       }
+                       return fnName;
+               },
+               configurable: true
+       });

 
 

-       // 22.1.3.3.12 Repeat, while count > 0
-       while (count > 0) {
-               // 22.1.3.3.12.a Let fromKey be ! ToString(from).
-               var fromKey = String(from);
-               // 22.1.3.3.12.b Let toKey be ! ToString(to).
-               var toKey = String(to);
-               // 22.1.3.3.12.c Let fromPresent be ? HasProperty(O, fromKey).
-               var fromPresent = HasProperty(o, fromKey);
-               // 22.1.3.3.12.d If fromPresent is true, then
-               if (fromPresent) {
-                       // 22.1.3.3.12.d.i Let fromVal be ? Get(O, fromKey).
-                       var fromVal = o[fromKey];
-                       // 22.1.3.3.12.d.ii Perform ? Set(O, toKey, fromVal, true).
-                       o[toKey] = fromVal;
-               } else {
-                       // 22.1.3.3.12.e Else fromPresent is false,
-                       // 22.1.3.3.12.e.i Perform ? DeletePropertyOrThrow(O, toKey).
-                       delete o[toKey];
-               }
-               // 22.1.3.3.12.f Let from be from + direction.
-               from = from + direction;
-               // 22.1.3.3.12.g Let to be to + direction.
-               to = to + direction;
-               // 22.1.3.3.12.h Let count be count - 1.
-               count = count - 1;
-       }
-       // 22.1.3.3.13 Return O.
-       return o;
-});
+}());

 
 }
 
 
 }
 

-if (!('Symbol' in this && 'iterator' in this.Symbol && !!Array.prototype.entries)) {
+if (!("EPSILON"in Number
+)) {

 
 

-// Array.prototype.entries
-/* global CreateMethodProperty, ToObject */
-// 22.1.3.4. Array.prototype.entries ( )
-CreateMethodProperty(Array.prototype, 'entries', function entries() {
-       // 1. Let O be ? ToObject(this value).
-       var O = ToObject(this);
-       // 2. Return CreateArrayIterator(O, "key+value").
-       // TODO: Add CreateArrayIterator
-       return new ArrayIterator(O, 'key+value');
+// Number.Epsilon
+// 20.1.2.1. Number.EPSILON
+// The value of Number.EPSILON is the difference between 1 and the smallest value greater than 1 that is representable as a Number value, which is approximately 2.2204460492503130808472633361816 x 10-16.
+// This property has the attributes { [[Writable]]: false, [[Enumerable]]: false, [[Configurable]]: false }.
+Object.defineProperty(Number, 'EPSILON', {
+       enumerable: false,
+       configurable: false,
+       writable: false,
+       value: Math.pow(2, -52)

 });
 
 }
 
 });
 
 }
 

-if (!('fill' in Array.prototype)) {
+if (!("MAX_SAFE_INTEGER"in Number
+)) {

 
 

-// Array.prototype.fill
-/* global CreateMethodProperty, Get, ToInteger, ToLength, ToObject, ToString */
-// 22.1.3.6. Array.prototype.fill ( value [ , start [ , end ] ] )
-CreateMethodProperty(Array.prototype, 'fill', function fill(value /* [ , start [ , end ] ] */) {
-       var start = arguments[1];
-       var end = arguments[2];
-       // 1. Let O be ? ToObject(this value).
-       var O = ToObject(this);
-       // 2. Let len be ? ToLength(? Get(O, "length")).
-       var len = ToLength(Get(O, "length"));
-       // 3. Let relativeStart be ? ToInteger(start).
-       var relativeStart = ToInteger(start);
-       // 4. If relativeStart < 0, let k be max((len + relativeStart), 0); else let k be min(relativeStart, len)
-       var k = relativeStart < 0 ? Math.max((len + relativeStart), 0) : Math.min(relativeStart, len);
-       // 5. If end is undefined, let relativeEnd be len; else let relativeEnd be ? ToInteger(end).
-       var relativeEnd = end === undefined ? len : ToInteger(end);
-       // 6. If relativeEnd < 0, let final be max((len + relativeEnd), 0); else let final be min(relativeEnd, len).
-       var final = relativeEnd < 0 ? Math.max((len + relativeEnd), 0) : Math.min(relativeEnd, len);
-       // 7. Repeat, while k < final
-       while (k < final) {
-               // a. Let Pk be ! ToString(k).
-               var Pk = ToString(k);
-               // b. Perform ? Set(O, Pk, value, true).
-               O[Pk] = value;
-               // c. Increase k by 1.
-               k = k + 1;
-       }
-       // 8. Return O.
-       return O;
+// Number.MAX_SAFE_INTEGER
+// 20.1.2.6. Number.MAX_SAFE_INTEGER
+// The value of Number.MAX_SAFE_INTEGER is 9007199254740991 (2^53-1).
+// This property has the attributes { [[Writable]]: false, [[Enumerable]]: false, [[Configurable]]: false }.
+Object.defineProperty(Number, 'MAX_SAFE_INTEGER', {
+       enumerable: false,
+       configurable: false,
+       writable: false,
+       value: Math.pow(2, 53) - 1

 });
 
 }
 
 });
 
 }
 

-if (!('find' in Array.prototype)) {
+if (!("MIN_SAFE_INTEGER"in Number
+)) {

 
 

-// Array.prototype.find
-/* global Call, CreateMethodProperty, Get, IsCallable, ToBoolean, ToLength, ToObject, ToString */
-// 22.1.3.8 Array.prototype.find ( predicate [ , thisArg ] )
-CreateMethodProperty(Array.prototype, 'find', function find( predicate /* [ , thisArg ] */) {
-       // 1. Let O be ? ToObject(this value).
-       var O = ToObject(this);
-       // 2. Let len be ? ToLength(? Get(O, "length")).
-       var len = ToLength(Get(O, "length"));
-       // 3. If IsCallable(predicate) is false, throw a TypeError exception.
-       if (IsCallable(predicate) === false) {
-               throw new TypeError(predicate + ' is not a function');
-       }
-       // 4. If thisArg is present, let T be thisArg; else let T be undefined.
-       var T = arguments.length > 1 ? arguments[1] : undefined;
-       // 5. Let k be 0.
-       var k = 0;
-       // 6. Repeat, while k < len
-       while (k < len) {
-               // a. Let Pk be ! ToString(k).
-               var Pk = ToString(k);
-               // b. Let kValue be ? Get(O, Pk).
-               var kValue = Get(O, Pk);
-               // c. Let testResult be ToBoolean(? Call(predicate, T, « kValue, k, O »)).
-               var testResult = ToBoolean(Call(predicate, T, [kValue, k, O ]));
-               // d. If testResult is true, return kValue.
-               if (testResult) {
-                       return kValue;
-               }
-               // e. Increase k by 1.
-               var k = k + 1;
-       }
-       // 7. Return undefined.
-       return undefined;
+// Number.MIN_SAFE_INTEGER
+// 20.1.2.8. Number.MIN_SAFE_INTEGER
+// The value of Number.MIN_SAFE_INTEGER is -9007199254740991 (-(253-1)).
+// This property has the attributes { [[Writable]]: false, [[Enumerable]]: false, [[Configurable]]: false }.
+Object.defineProperty(Number, 'MIN_SAFE_INTEGER', {
+       enumerable: false,
+       configurable: false,
+       writable: false,
+       value: -(Math.pow(2, 53) - 1)

 });
 
 }
 
 });
 
 }
 

-if (!('findIndex' in Array.prototype)) {
+if (!("freeze"in Object
+)) {

 
 

-// Array.prototype.findIndex
-/* global Call, CreateMethodProperty, Get, IsCallable, ToBoolean, ToLength, ToObject, ToString */
-// 22.1.3.9. Array.prototype.findIndex ( predicate [ , thisArg ] )
-CreateMethodProperty(Array.prototype, 'findIndex', function findIndex(predicate /* [ , thisArg ] */) {
-       // 1. Let O be ? ToObject(this value).
-       var O = ToObject(this);
-       // 2. Let len be ? ToLength(? Get(O, "length")).
-       var len = ToLength(Get(O, "length"));
-       // 3. If IsCallable(predicate) is false, throw a TypeError exception.
-       if (IsCallable(predicate) === false) {
-               throw new TypeError(predicate + ' is not a function');
-       }
-       // 4. If thisArg is present, let T be thisArg; else let T be undefined.
-       var T = arguments.length > 1 ? arguments[1] : undefined;
-       // 5. Let k be 0.
-       var k = 0;
-       // 6. Repeat, while k < len
-       while (k < len) {
-               // a. Let Pk be ! ToString(k).
-               var Pk = ToString(k);
-               // b. Let kValue be ? Get(O, Pk).
-               var kValue = Get(O, Pk);
-               // c. Let testResult be ToBoolean(? Call(predicate, T, « kValue, k, O »)).
-               var testResult = ToBoolean(Call(predicate, T, [kValue, k, O]));
-               // d. If testResult is true, return k.
-               if (testResult) {
-                       return k;
-               }
-               // e. Increase k by 1.
-               k = k + 1;
-       }
-       // 7. Return -1.
-       return -1;
+// Object.freeze
+/* global CreateMethodProperty */
+// 19.1.2.6. Object.freeze ( O )
+CreateMethodProperty(Object, 'freeze', function freeze(O) {
+       // This feature cannot be implemented fully as a polyfill.
+       // We choose to silently fail which allows "securable" code
+       // to "gracefully" degrade to working but insecure code.
+       return O;

 });
 
 }
 
 });
 
 }
 

-if (!('Symbol' in this && 'iterator' in this.Symbol && !!Array.prototype.keys)) {
+if (!("getOwnPropertyDescriptor"in Object&&"function"==typeof Object.getOwnPropertyDescriptor&&function(){try{var t={}
+return t.test=0,0===Object.getOwnPropertyDescriptor(t,"test").value}catch(e){return!1}}()
+)) {

 
 

-// Array.prototype.keys
-/* global CreateMethodProperty, ToObject */
-// 22.1.3.14. Array.prototype.keys ( )
-CreateMethodProperty(Array.prototype, 'keys', function keys() {
-       // 1. Let O be ? ToObject(this value).
-       var O = ToObject(this);
-       // 2. Return CreateArrayIterator(O, "key").
-       // TODO: Add CreateArrayIterator.
-       return new ArrayIterator(O, 'key');
-});
+// Object.getOwnPropertyDescriptor
+/* global CreateMethodProperty */
+(function () {
+       var call = Function.prototype.call;
+       var prototypeOfObject = Object.prototype;
+       var owns = call.bind(prototypeOfObject.hasOwnProperty);

 
 

-}
+       var lookupGetter;
+       var lookupSetter;
+       var supportsAccessors;
+       if ((supportsAccessors = owns(prototypeOfObject, "__defineGetter__"))) {
+           lookupGetter = call.bind(prototypeOfObject.__lookupGetter__);
+           lookupSetter = call.bind(prototypeOfObject.__lookupSetter__);
+       }
+       function doesGetOwnPropertyDescriptorWork(object) {
+           try {
+               object.sentinel = 0;
+               return Object.getOwnPropertyDescriptor(
+                   object,
+                   "sentinel"
+               ).value === 0;
+           } catch (exception) {
+               // returns falsy
+           }
+       }
+       // check whether getOwnPropertyDescriptor works if it's given. Otherwise,
+       // shim partially.
+       if (Object.defineProperty) {
+           var getOwnPropertyDescriptorWorksOnObject =
+               doesGetOwnPropertyDescriptorWork({});
+           var getOwnPropertyDescriptorWorksOnDom = typeof document == "undefined" ||
+               doesGetOwnPropertyDescriptorWork(document.createElement("div"));
+           if (!getOwnPropertyDescriptorWorksOnDom ||
+               !getOwnPropertyDescriptorWorksOnObject
+           ) {
+               var getOwnPropertyDescriptorFallback = Object.getOwnPropertyDescriptor;
+           }
+       }

 
 

-if (!('name' in Function.prototype && (function x() {}).name === 'x')) {
+       if (!Object.getOwnPropertyDescriptor || getOwnPropertyDescriptorFallback) {
+           var ERR_NON_OBJECT = "Object.getOwnPropertyDescriptor called on a non-object: ";

 
 

-// Function.name
-(function () {
+           CreateMethodProperty(Object, 'getOwnPropertyDescriptor', function getOwnPropertyDescriptor(object, property) {
+               if ((typeof object != "object" && typeof object != "function") || object === null) {
+                   throw new TypeError(ERR_NON_OBJECT + object);
+               }

 
 

-       var
-       accessorName = 'name',
-       fnNameMatchRegex = /^\s*function\s+([^\(\s]*)\s*/,
-       $Function = Function,
-       FunctionName = 'Function',
-       FunctionProto = $Function.prototype,
-       FunctionProtoCtor = FunctionProto.constructor,
+               // make a valiant attempt to use the real getOwnPropertyDescriptor
+               // for I8's DOM elements.
+               if (getOwnPropertyDescriptorFallback) {
+                   try {
+                       return getOwnPropertyDescriptorFallback.call(Object, object, property);
+                   } catch (exception) {
+                       // try the shim if the real one doesn't work
+                   }
+               }

 
 

-       getFunctionName = function(fn) {
-               var match, name;
+               // If object does not owns property return undefined immediately.
+               if (!owns(object, property)) {
+                   return;
+               }

 
 

-               if (fn === $Function || fn === FunctionProtoCtor) {
-                       name = FunctionName;
-               }
-               else if (fn !== FunctionProto) {
-                       match = ('' + fn).match(fnNameMatchRegex);
-                       name = match && match[1];
-               }
-               return name || '';
-       };
+               // If object has a property then it's for sure both `enumerable` and
+               // `configurable`.
+               var descriptor = { enumerable: true, configurable: true };

 
 

+               // If JS engine supports accessor properties then property may be a
+               // getter or setter.
+               if (supportsAccessors) {
+                   // Unfortunately `__lookupGetter__` will return a getter even
+                   // if object has own non getter property along with a same named
+                   // inherited getter. To avoid misbehavior we temporary remove
+                   // `__proto__` so that `__lookupGetter__` will return getter only
+                   // if it's owned by an object.
+                   var prototype = object.__proto__;
+                   object.__proto__ = prototypeOfObject;

 
 

-       Object.defineProperty(FunctionProto, accessorName, {
-               get: function Function$name() {
-                       var
-                       fn = this,
-                       fnName = getFunctionName(fn);
+                   var getter = lookupGetter(object, property);
+                   var setter = lookupSetter(object, property);

 
 

-                       // Since named function definitions have immutable names, also memoize the
-                       // output by defining the `name` property directly on this Function
-                       // instance so the accessor function will not need to be invoked again.
-                       if (fn !== FunctionProto) {
-                               Object.defineProperty(fn, accessorName, {
-                                       value: fnName,
-                                       configurable: true
-                               });
-                       }
+                   // Once we have getter and setter we can put values back.
+                   object.__proto__ = prototype;

 
 

-                       return fnName;
-               },
-               configurable: true
-       });
+                   if (getter || setter) {
+                       if (getter) {
+                           descriptor.get = getter;
+                       }
+                       if (setter) {
+                           descriptor.set = setter;
+                       }
+                       // If it was accessor property we're done and return here
+                       // in order to avoid adding `value` to the descriptor.
+                       return descriptor;
+                   }
+               }

 
 

+               // If we got this far we know that object has an own property that is
+               // not an accessor so we set it as a value and return descriptor.
+               descriptor.value = object[property];
+                       descriptor.writable = true;
+               return descriptor;
+           });
+       }

 }());
 
 }
 
 }());
 
 }
 

-if (!('acosh' in Math)) {
+if (!("getOwnPropertyNames"in Object
+)) {

 
 

-// Math.acosh
+// Object.getOwnPropertyNames

 /* global CreateMethodProperty */
 /* global CreateMethodProperty */

-// 20.2.2.3. Math.acosh ( x )
-CreateMethodProperty(Math, 'acosh', function acosh(x) {
-       // If x is NaN, the result is NaN.
-       if (isNaN(x)) {
-               return NaN;
-       }
-       // If x is less than 1, the result is NaN.
-       if (x < 1) {
-               return NaN;
-       }
-       // If x is 1, the result is +0.
-       if (x === 1) {
-               return 0;
-       }
-       // If x is +∞, the result is +∞.
-       if (x === Infinity) {
-               return Infinity;
-       }
-       return Math.log(x + Math.sqrt(x * x - 1));
-});

 
 

-}
+var toString = ({}).toString;
+var split = ''.split;

 
 

-if (!('asinh' in Math)) {
+CreateMethodProperty(Object, 'getOwnPropertyNames', function getOwnPropertyNames(object) {
+       var buffer = [];
+       var key;

 
 

-// Math.asinh
-/* global CreateMethodProperty */
-// 20.2.2.5. Math.asinh ( x )
-CreateMethodProperty(Math, 'asinh', function asinh(x) {
-       // If x is NaN, the result is NaN.
-       if (isNaN(x)) {
-               return NaN;
-       }
-       // If x is +0, the result is +0.
-       if (x === 0 && 1/x === Infinity) {
-               return 0;
-       }
-       // If x is -0, the result is -0.
-       if (x === 0 && 1/x === -Infinity) {
-               return -0;
-       }
-       // If x is +∞, the result is +∞.
-       if (x === Infinity) {
-               return Infinity;
-       }
-       // If x is -∞, the result is -∞.
-       if (x === -Infinity) {
-               return -Infinity;
-       }
-       return Math.log(x + Math.sqrt(x * x + 1));
-});
+       // Non-enumerable properties cannot be discovered but can be checked for by name.
+       // Define those used internally by JS to allow an incomplete solution
+       var commonProps = ['length', "name", "arguments", "caller", "prototype", "observe", "unobserve"];

 
 

-}
+       if (typeof object === 'undefined' || object === null) {
+               throw new TypeError('Cannot convert undefined or null to object');
+       }

 
 

-if (!('atanh' in Math)) {
+       // Polyfill.io fallback for non-array-like strings which exist in some ES3 user-agents (IE 8)
+       object = toString.call(object) == '[object String]' ? split.call(object, '') : Object(object);

 
 

-// Math.atanh
-/* global CreateMethodProperty */
-// 20.2.2.7. Math.atanh ( x )
-CreateMethodProperty(Math, 'atanh', function atanh(x) {
-       // If x is NaN, the result is NaN.
-       if (isNaN(x)) {
-               return NaN;
-       }
-       // If x is less than -1, the result is NaN.
-       if (x < -1) {
-               return NaN;
-       }
-       // If x is greater than 1, the result is NaN.
-       if (x > 1) {
-               return NaN;
-       }
-       // If x is -1, the result is -∞.
-       if (x === -1) {
-               return -Infinity;
-       }
-       // If x is +1, the result is +∞.
-       if (x === 1) {
-               return Infinity;
-       }
-       // If x is +0, the result is +0.
-       if (x === 0 && 1/x === Infinity) {
-               return 0;
+       // Enumerable properties only
+       for (key in object) {
+               if (Object.prototype.hasOwnProperty.call(object, key)) {
+                       buffer.push(key);
+               }

        }
        }

-       // If x is -0, the result is -0.
-       if (x === 0 && 1/x === -Infinity) {
-               return -0;
+
+       // Check for and add the common non-enumerable properties
+       for (var i=0, s=commonProps.length; i<s; i++) {
+               if (commonProps[i] in object) buffer.push(commonProps[i]);

        }
        }

-       return Math.log((1 + x) / (1 - x)) / 2;
+
+       return buffer;

 });
 
 }
 
 });
 
 }
 

-if (!('cbrt' in Math)) {
+if (!("getPrototypeOf"in Object
+)) {

 
 

-// Math.cbrt
+// Object.getPrototypeOf

 /* global CreateMethodProperty */
 /* global CreateMethodProperty */

-// 20.2.2.9. Math.cbrt ( x )
-CreateMethodProperty(Math, 'cbrt', function cbrt(x) {
-       // If x is NaN, the result is NaN.
-       if (isNaN(x)) {
-               return NaN;
-       }
-       // If x is +0, the result is +0.
-       if (x === 0 && 1/x === Infinity) {
-               return 0;
-       }
-       // If x is -0, the result is -0.
-       if (x === 0 && 1/x === -Infinity) {
-               return -0;
-       }
-       // If x is +∞, the result is +∞.
-       if (x === Infinity) {
-               return Infinity;
-       }
-       // If x is -∞, the result is -∞.
-       if (x === -Infinity) {
-               return -Infinity;
-       }
-       var y = Math.pow(Math.abs(x), 1 / 3);
-       return x < 0 ? -y : y;
-});
-
-}
-
+// Based on: https://github.com/es-shims/es5-shim/blob/master/es5-sham.js

 
 

-// _ESAbstract.ToUint32
-// 7.1.6. ToUint32 ( argument )
-function ToUint32(argument) { // eslint-disable-line no-unused-vars
-       // 1. Let number be ? ToNumber(argument).
-       var number = Number(argument);
-       // 2. If number is NaN, +0, -0, +∞, or -∞, return +0.
-       if (isNaN(number) || 1/number === Infinity || 1/number === -Infinity || number === Infinity || number === -Infinity) {
-               return 0;
+// https://github.com/es-shims/es5-shim/issues#issue/2
+// http://ejohn.org/blog/objectgetprototypeof/
+// recommended by fschaefer on github
+//
+// sure, and webreflection says ^_^
+// ... this will nerever possibly return null
+// ... Opera Mini breaks here with infinite loops
+CreateMethodProperty(Object, 'getPrototypeOf', function getPrototypeOf(object) {
+       if (object !== Object(object)) {
+               throw new TypeError('Object.getPrototypeOf called on non-object');
+       }
+       var proto = object.__proto__;
+       if (proto || proto === null) {
+               return proto;
+       } else if (typeof object.constructor == 'function' && object instanceof object.constructor) {
+    return object.constructor.prototype;
+  } else if (object instanceof Object) {
+               return Object.prototype;
+       } else {
+               // Correctly return null for Objects created with `Object.create(null)`
+               // (shammed or native) or `{ __proto__: null}`.  Also returns null for
+               // cross-realm objects on browsers that lack `__proto__` support (like
+               // IE <11), but that's the best we can do.
+               return null;

        }
        }

-       // 3. Let int be the mathematical value that is the same sign as number and whose magnitude is floor(abs(number)).
-       var int = ((number < 0) ? -1 : 1) * Math.floor(Math.abs(number));
-       // 4. Let int32bit be int modulo 2^32.
-       var int32bit = int >>> 0;
-       // 5. Return int32bit.
-       return int32bit;
+});
+

 }
 }

-if (!('clz32' in Math)) {

 
 

-// Math.clz32
-/* global CreateMethodProperty, ToUint32 */
-// 20.2.2.11. Math.clz32 ( x )
-CreateMethodProperty(Math, 'clz32', function clz32(x) {
-       // 1. Let n be ToUint32(x).
-       var n = ToUint32(x);
-       // 2. Let p be the number of leading zero bits in the 32-bit binary representation of n.
-       var p = n ? 32 - n.toString(2).length : 32;
-       // 3. Return p.
-       return p;
+if (!("is"in Object
+)) {
+
+// Object.is
+/* global CreateMethodProperty, SameValue */
+// 19.1.2.12. Object.is ( value1, value2 )
+CreateMethodProperty(Object, 'is', function is(value1, value2) {
+       // 1. Return SameValue(value1, value2).
+       return SameValue(value1, value2);

 });
 
 }
 
 });
 
 }
 

-if (!('cosh' in Math)) {
+if (!("keys"in Object&&function(){return 2===Object.keys(arguments).length}(1,2)&&function(){try{return Object.keys(""),!0}catch(t){return!1}}()
+)) {

 
 

-// Math.cosh
+// Object.keys

 /* global CreateMethodProperty */
 /* global CreateMethodProperty */

-// 20.2.2.1. 3Math.cosh ( x )
-CreateMethodProperty(Math, 'cosh', function cosh(x) {
-       // If x is NaN, the result is NaN.
-       if (isNaN(x)) {
-               return NaN;
-       }
-       // If x is +0, the result is 1.
-       if (x === 0 && 1/x === Infinity) {
-               return 1;
-       }
-       // If x is -0, the result is 1.
-       if (x === 0 && 1/x === -Infinity) {
-               return 1;
-       }
-       // If x is +∞, the result is +∞.
-       if (x === Infinity) {
-               return Infinity;
-       }
-       // If x is -∞, the result is +∞.
-       if (x === -Infinity) {
-               return Infinity;
-       }
-       x = Math.abs(x);
-       if (x > 709) {
-               var y = Math.exp(0.5 * x);
-               return y / 2 * y;
+CreateMethodProperty(Object, "keys", (function() {
+       'use strict';
+
+       // modified from https://github.com/es-shims/object-keys
+
+       var has = Object.prototype.hasOwnProperty;
+       var toStr = Object.prototype.toString;
+       var isEnumerable = Object.prototype.propertyIsEnumerable;
+       var hasDontEnumBug = !isEnumerable.call({ toString: null }, 'toString');
+       var hasProtoEnumBug = isEnumerable.call(function () {}, 'prototype');
+       var dontEnums = [
+               'toString',
+               'toLocaleString',
+               'valueOf',
+               'hasOwnProperty',
+               'isPrototypeOf',
+               'propertyIsEnumerable',
+               'constructor'
+       ];
+       var equalsConstructorPrototype = function (o) {
+               var ctor = o.constructor;
+               return ctor && ctor.prototype === o;
+       };
+       var excludedKeys = {
+               $console: true,
+               $external: true,
+               $frame: true,
+               $frameElement: true,
+               $frames: true,
+               $innerHeight: true,
+               $innerWidth: true,
+               $outerHeight: true,
+               $outerWidth: true,
+               $pageXOffset: true,
+               $pageYOffset: true,
+               $parent: true,
+               $scrollLeft: true,
+               $scrollTop: true,
+               $scrollX: true,
+               $scrollY: true,
+               $self: true,
+               $webkitIndexedDB: true,
+               $webkitStorageInfo: true,
+               $window: true
+       };
+       var hasAutomationEqualityBug = (function () {
+               /* global window */
+               if (typeof window === 'undefined') { return false; }
+               for (var k in window) {
+                       try {
+                               if (!excludedKeys['$' + k] && has.call(window, k) && window[k] !== null && typeof window[k] === 'object') {
+                                       try {
+                                               equalsConstructorPrototype(window[k]);
+                                       } catch (e) {
+                                               return true;
+                                       }
+                               }
+                       } catch (e) {
+                               return true;
+                       }
+               }
+               return false;
+       }());
+       var equalsConstructorPrototypeIfNotBuggy = function (o) {
+               /* global window */
+               if (typeof window === 'undefined' || !hasAutomationEqualityBug) {
+                       return equalsConstructorPrototype(o);
+               }
+               try {
+                       return equalsConstructorPrototype(o);
+               } catch (e) {
+                       return false;
+               }
+       };
+
+       function isArgumentsObject(value) {
+               var str = toStr.call(value);
+               var isArgs = str === '[object Arguments]';
+               if (!isArgs) {
+                       isArgs = str !== '[object Array]' &&
+                               value !== null &&
+                               typeof value === 'object' &&
+                               typeof value.length === 'number' &&
+                               value.length >= 0 &&
+                               toStr.call(value.callee) === '[object Function]';
+               }
+               return isArgs;

        }
        }

-       var y = Math.exp(x);
-       return (y + 1 / y) / 2;
-});
+
+       return function keys(object) {
+               var isFunction = toStr.call(object) === '[object Function]';
+               var isArguments = isArgumentsObject(object);
+               var isString = toStr.call(object) === '[object String]';
+               var theKeys = [];
+
+               if (object === undefined || object === null) {
+                       throw new TypeError('Cannot convert undefined or null to object');
+               }
+
+               var skipProto = hasProtoEnumBug && isFunction;
+               if (isString && object.length > 0 && !has.call(object, 0)) {
+                       for (var i = 0; i < object.length; ++i) {
+                               theKeys.push(String(i));
+                       }
+               }
+
+               if (isArguments && object.length > 0) {
+                       for (var j = 0; j < object.length; ++j) {
+                               theKeys.push(String(j));
+                       }
+               } else {
+                       for (var name in object) {
+                               if (!(skipProto && name === 'prototype') && has.call(object, name)) {
+                                       theKeys.push(String(name));
+                               }
+                       }
+               }
+
+               if (hasDontEnumBug) {
+                       var skipConstructor = equalsConstructorPrototypeIfNotBuggy(object);
+
+                       for (var k = 0; k < dontEnums.length; ++k) {
+                               if (!(skipConstructor && dontEnums[k] === 'constructor') && has.call(object, dontEnums[k])) {
+                                       theKeys.push(dontEnums[k]);
+                               }
+                       }
+               }
+               return theKeys;
+       };
+}()));

 
 }
 
 
 }
 

-if (!('expm1' in Math)) {
+if (!("assign"in Object
+)) {

 
 

-// Math.expm1
-/* global CreateMethodProperty */
-// 20.2.2.15. Math.expm1 ( x )
-CreateMethodProperty(Math, 'expm1', function expm1(x) {
-       // If x is NaN, the result is NaN.
-       if (isNaN(x)) {
-               return NaN;
-       }
-       // If x is +0, the result is +0.
-       if (x === 0 && 1/x === Infinity) {
-               return 0;
-       }
-       // If x is -0, the result is -0.
-       if (x === 0 && 1/x === -Infinity) {
-               return -0;
-       }
-       // If x is +∞, the result is +∞.
-       if (x === Infinity) {
-               return Infinity;
-       }
-       // If x is -∞, the result is -1.
-       if (x === -Infinity) {
-               return -1;
+// Object.assign
+/* global CreateMethodProperty, Get, ToObject */
+// 19.1.2.1 Object.assign ( target, ...sources )
+CreateMethodProperty(Object, 'assign', function assign(target, source) { // eslint-disable-line no-unused-vars
+       // 1. Let to be ? ToObject(target).
+       var to = ToObject(target);
+
+       // 2. If only one argument was passed, return to.
+       if (arguments.length === 1) {
+               return to;

        }
 
        }
 

-       if (x > -1e-6 && x < 1e-6) {
-               return x + x * x / 2;
-       } else {
-               return Math.exp(x) - 1;
+       // 3. Let sources be the List of argument values starting with the second argument
+       var sources = Array.prototype.slice.call(arguments, 1);
+
+       // 4. For each element nextSource of sources, in ascending index order, do
+       var index1;
+       var index2;
+       var keys;
+       var from;
+       for (index1 = 0; index1 < sources.length; index1++) {
+               var nextSource = sources[index1];
+               // a. If nextSource is undefined or null, let keys be a new empty List.
+               if (nextSource === undefined || nextSource === null) {
+                       keys = [];
+                       // b. Else,
+               } else {
+                       // i. Let from be ! ToObject(nextSource).
+                       from = ToObject(nextSource);
+                       // ii. Let keys be ? from.[[OwnPropertyKeys]]().
+                       /*
+                               This step in our polyfill is not complying with the specification.
+                               [[OwnPropertyKeys]] is meant to return ALL keys, including non-enumerable and symbols.
+                               TODO: When we have Reflect.ownKeys, use that instead as it is the userland equivalent of [[OwnPropertyKeys]].
+                       */
+                       keys = Object.keys(from);
+               }
+
+               // c. For each element nextKey of keys in List order, do
+               for (index2 = 0; index2 < keys.length; index2++) {
+                       var nextKey = keys[index2];
+                       var enumerable;
+                       try {
+                               // i. Let desc be ? from.[[GetOwnProperty]](nextKey).
+                               var desc = Object.getOwnPropertyDescriptor(from, nextKey);
+                               // ii. If desc is not undefined and desc.[[Enumerable]] is true, then
+                               enumerable = desc !== undefined && desc.enumerable === true;
+                       } catch (e) {
+                               // Polyfill.io - We use Object.prototype.propertyIsEnumerable as a fallback
+                               // because `Object.getOwnPropertyDescriptor(window.location, 'hash')` causes Internet Explorer 11 to crash.
+                               enumerable = Object.prototype.propertyIsEnumerable.call(from, nextKey);
+                       }
+                       if (enumerable) {
+                               // 1. Let propValue be ? Get(from, nextKey).
+                               var propValue = Get(from, nextKey);
+                               // 2. Perform ? Set(to, nextKey, propValue, true).
+                               to[nextKey] = propValue;
+                       }
+               }

        }
        }

+       // 5. Return to.
+       return to;

 });
 
 }
 
 });
 
 }
 

+if (!("defineProperties"in Object
+)) {

 
 

-// _TypedArray
-/*
- Copyright (c) 2010, Linden Research, Inc.
- Copyright (c) 2014, Joshua Bell
+// Object.defineProperties
+/* global CreateMethodProperty, Get, ToObject, Type */
+// 19.1.2.3. Object.defineProperties ( O, Properties )
+CreateMethodProperty(Object, 'defineProperties', function defineProperties(O, Properties) {
+       // 1. If Type(O) is not Object, throw a TypeError exception.
+       if (Type(O) !== 'object') {
+               throw new TypeError('Object.defineProperties called on non-object');
+       }
+       // 2. Let props be ? ToObject(Properties).
+       var props = ToObject(Properties);
+       // 3. Let keys be ? props.[[OwnPropertyKeys]]().
+       /*
+               Polyfill.io - This step in our polyfill is not complying with the specification.
+               [[OwnPropertyKeys]] is meant to return ALL keys, including non-enumerable and symbols.
+               TODO: When we have Reflect.ownKeys, use that instead as it is the userland equivalent of [[OwnPropertyKeys]].
+       */
+       var keys = Object.keys(props);
+       // 4. Let descriptors be a new empty List.
+       var descriptors = [];
+       // 5. For each element nextKey of keys in List order, do
+       for (var i = 0; i < keys.length; i++) {
+               var nextKey = keys[i];
+               // a. Let propDesc be ? props.[[GetOwnProperty]](nextKey).
+               var propDesc = Object.getOwnPropertyDescriptor(props, nextKey);
+               // b. If propDesc is not undefined and propDesc.[[Enumerable]] is true, then
+               if (propDesc !== undefined && propDesc.enumerable) {
+                       // i. Let descObj be ? Get(props, nextKey).
+                       var descObj = Get(props, nextKey);
+                       // ii. Let desc be ? ToPropertyDescriptor(descObj).
+                       // Polyfill.io - We skip this step because Object.defineProperty deals with it.
+                       // TODO: Implement this step?
+                       var desc = descObj;
+                       // iii. Append the pair (a two element List) consisting of nextKey and desc to the end of descriptors.
+                       descriptors.push([nextKey, desc]);
+               }
+       }
+       // 6. For each pair from descriptors in list order, do
+       for (var i = 0; i < descriptors.length; i++){
+               // a. Let P be the first element of pair.
+               var P = descriptors[i][0];
+               // b. Let desc be the second element of pair.
+               var desc = descriptors[i][1];
+               // c. Perform ? DefinePropertyOrThrow(O, P, desc).
+               Object.defineProperty(O, P, desc);
+       }
+       // 7. Return O.
+       return O;
+});

 
 

- Permission is hereby granted, free of charge, to any person obtaining a copy
- of this software and associated documentation files (the "Software"), to deal
- in the Software without restriction, including without limitation the rights
- to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
- copies of the Software, and to permit persons to whom the Software is
- furnished to do so, subject to the following conditions:
+}

 
 

- The above copyright notice and this permission notice shall be included in
- all copies or substantial portions of the Software.
+if (!("create"in Object
+)) {

 
 

- THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
- AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
- OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
- THE SOFTWARE.
- $/LicenseInfo$
- */
+// Object.create
+/* global CreateMethodProperty, Type */
+CreateMethodProperty(Object, 'create', function create(O, properties) {
+       // 1. If Type(O) is neither Object nor Null, throw a TypeError exception.
+       if (Type(O) !== 'object' && Type(O) !== 'null') {
+               throw new TypeError('Object prototype may only be an Object or null');
+       }
+       // 2. Let obj be ObjectCreate(O).
+       var obj = new Function('e', 'function Object() {}Object.prototype=e;return new Object')(O);

 
 

-// Original can be found at:
-//   https://bitbucket.org/lindenlab/llsd
-// Modifications by Joshua Bell inexorabletash@gmail.com
-//   https://github.com/inexorabletash/polyfill
+       obj.constructor.prototype = O;

 
 

-// ES3/ES5 implementation of the Krhonos Typed Array Specification
-//   Ref: http://www.khronos.org/registry/typedarray/specs/latest/
-//   Date: 2011-02-01
-//
-// Variations:
-//  * Allows typed_array.get/set() as alias for subscripts (typed_array[])
-//  * Gradually migrating structure from Khronos spec to ES2015 spec
-//
-// Caveats:
-//  * Beyond 10000 or so entries, polyfilled array accessors (ta[0],
-//    etc) become memory-prohibitive, so array creation will fail. Set
-//    self.TYPED_ARRAY_POLYFILL_NO_ARRAY_ACCESSORS=true to disable
-//    creation of accessors. Your code will need to use the
-//    non-standard get()/set() instead, and will need to add those to
-//    native arrays for interop.
-(function(global) {
-  'use strict';
-  var undefined = (void 0); // Paranoia
+       // 3. If Properties is not undefined, then
+       if (1 in arguments) {
+               // a. Return ? ObjectDefineProperties(obj, Properties).
+               return Object.defineProperties(obj, properties);
+       }

 
 

-  // Beyond this value, index getters/setters (i.e. array[0], array[1]) are so slow to
-  // create, and consume so much memory, that the browser appears frozen.
-  var MAX_ARRAY_LENGTH = 1e5;
+       return obj;
+});

 
 

-  // Approximations of internal ECMAScript conversion functions
-  function Type(v) {
-    switch(typeof v) {
-    case 'undefined': return 'undefined';
-    case 'boolean': return 'boolean';
-    case 'number': return 'number';
-    case 'string': return 'string';
-    default: return v === null ? 'null' : 'object';
-    }
-  }
+}

 
 

-  // Class returns internal [[Class]] property, used to avoid cross-frame instanceof issues:
-  function Class(v) { return Object.prototype.toString.call(v).replace(/^\[object *|\]$/g, ''); }
-  function IsCallable(o) { return typeof o === 'function'; }
-  function ToObject(v) {
-    if (v === null || v === undefined) throw TypeError();
-    return Object(v);
-  }
-  function ToInt32(v) { return v >> 0; }
-  function ToUint32(v) { return v >>> 0; }

 
 

-  // Snapshot intrinsics
-  var LN2 = Math.LN2,
-      abs = Math.abs,
-      floor = Math.floor,
-      log = Math.log,
-      max = Math.max,
-      min = Math.min,
-      pow = Math.pow,
-      round = Math.round;
+// _ESAbstract.GetIterator
+/* global GetMethod, Symbol, Call, Type, GetV */
+// 7.4.1. GetIterator ( obj [ , method ] )
+// The abstract operation GetIterator with argument obj and optional argument method performs the following steps:
+function GetIterator(obj /*, method */) { // eslint-disable-line no-unused-vars
+       // 1. If method is not present, then
+               // a. Set method to ? GetMethod(obj, @@iterator).
+       var method = arguments.length > 1 ? arguments[1] : GetMethod(obj, Symbol.iterator);
+       // 2. Let iterator be ? Call(method, obj).
+       var iterator = Call(method, obj);
+       // 3. If Type(iterator) is not Object, throw a TypeError exception.
+       if (Type(iterator) !== 'object') {
+               throw new TypeError('bad iterator');
+       }
+       // 4. Let nextMethod be ? GetV(iterator, "next").
+       var nextMethod = GetV(iterator, "next");
+       // 5. Let iteratorRecord be Record {[[Iterator]]: iterator, [[NextMethod]]: nextMethod, [[Done]]: false}.
+       var iteratorRecord = Object.create(null);
+       iteratorRecord['[[Iterator]]'] = iterator;
+       iteratorRecord['[[NextMethod]]'] = nextMethod;
+       iteratorRecord['[[Done]]'] = false;
+       // 6. Return iteratorRecord.
+       return iteratorRecord;
+}

 
 

-  // emulate ES5 getter/setter API using legacy APIs
-  // http://blogs.msdn.com/b/ie/archive/2010/09/07/transitioning-existing-code-to-the-es5-getter-setter-apis.aspx
-  // (second clause tests for Object.defineProperty() in IE<9 that only supports extending DOM prototypes, but
-  // note that IE<9 does not support __defineGetter__ or __defineSetter__ so it just renders the method harmless)
+// _ESAbstract.OrdinaryCreateFromConstructor
+/* global GetPrototypeFromConstructor */
+// 9.1.13. OrdinaryCreateFromConstructor ( constructor, intrinsicDefaultProto [ , internalSlotsList ] )
+function OrdinaryCreateFromConstructor(constructor, intrinsicDefaultProto) { // eslint-disable-line no-unused-vars
+       var internalSlotsList = arguments[2] || {};
+       // 1. Assert: intrinsicDefaultProto is a String value that is this specification's name of an intrinsic object.
+       // The corresponding object must be an intrinsic that is intended to be used as the[[Prototype]] value of an object.

 
 

-  (function() {
-    var orig = Object.defineProperty;
-    var dom_only = !(function(){try{return Object.defineProperty({},'x',{});}catch(_){return false;}}());
+       // 2. Let proto be ? GetPrototypeFromConstructor(constructor, intrinsicDefaultProto).
+       var proto = GetPrototypeFromConstructor(constructor, intrinsicDefaultProto);

 
 

-    if (!orig || dom_only) {
-      Object.defineProperty = function (o, prop, desc) {
-        // In IE8 try built-in implementation for defining properties on DOM prototypes.
-        if (orig)
-          try { return orig(o, prop, desc); } catch (_) {}
-        if (o !== Object(o))
-          throw TypeError('Object.defineProperty called on non-object');
-        if (Object.prototype.__defineGetter__ && ('get' in desc))
-          Object.prototype.__defineGetter__.call(o, prop, desc.get);
-        if (Object.prototype.__defineSetter__ && ('set' in desc))
-          Object.prototype.__defineSetter__.call(o, prop, desc.set);
-        if ('value' in desc)
-          o[prop] = desc.value;
-        return o;
-      };
-    }
-  }());
+       // 3. Return ObjectCreate(proto, internalSlotsList).
+       // Polyfill.io - We do not pass internalSlotsList to Object.create because Object.create does not use the default ordinary object definitions specified in 9.1.
+       var obj = Object.create(proto);
+       for (var name in internalSlotsList) {
+               if (Object.prototype.hasOwnProperty.call(internalSlotsList, name)) {
+                       Object.defineProperty(obj, name, {
+                               configurable: true,
+                               enumerable: false,
+                               writable: true,
+                               value: internalSlotsList[name]
+                       });
+               }
+       }
+       return obj;
+}

 
 

-  // ES5: Make obj[index] an alias for obj._getter(index)/obj._setter(index, value)
-  // for index in 0 ... obj.length
-  function makeArrayAccessors(obj) {
-    if ('TYPED_ARRAY_POLYFILL_NO_ARRAY_ACCESSORS' in global)
-      return;
+// _ESAbstract.Construct
+/* global IsConstructor, OrdinaryCreateFromConstructor, Call */
+// 7.3.13. Construct ( F [ , argumentsList [ , newTarget ]] )
+function Construct(F /* [ , argumentsList [ , newTarget ]] */) { // eslint-disable-line no-unused-vars
+       // 1. If newTarget is not present, set newTarget to F.
+       var newTarget = arguments.length > 2 ? arguments[2] : F;

 
 

-    if (obj.length > MAX_ARRAY_LENGTH) throw RangeError('Array too large for polyfill');
+       // 2. If argumentsList is not present, set argumentsList to a new empty List.
+       var argumentsList = arguments.length > 1 ? arguments[1] : [];

 
 

-    function makeArrayAccessor(index) {
-      Object.defineProperty(obj, index, {
-        'get': function() { return obj._getter(index); },
-        'set': function(v) { obj._setter(index, v); },
-        enumerable: true,
-        configurable: false
-      });
-    }
+       // 3. Assert: IsConstructor(F) is true.
+       if (!IsConstructor(F)) {
+               throw new TypeError('F must be a constructor.');
+       }

 
 

-    var i;
-    for (i = 0; i < obj.length; i += 1) {
-      makeArrayAccessor(i);
-    }
-  }
+       // 4. Assert: IsConstructor(newTarget) is true.
+       if (!IsConstructor(newTarget)) {
+               throw new TypeError('newTarget must be a constructor.');
+       }

 
 

-  // Internal conversion functions:
-  //    pack<Type>()   - take a number (interpreted as Type), output a byte array
-  //    unpack<Type>() - take a byte array, output a Type-like number
+       // 5. Return ? F.[[Construct]](argumentsList, newTarget).
+       // Polyfill.io - If newTarget is the same as F, it is equivalent to new F(...argumentsList).
+       if (newTarget === F) {
+               return new (Function.prototype.bind.apply(F, [null].concat(argumentsList)))();
+       } else {
+               // Polyfill.io - This is mimicking section 9.2.2 step 5.a.
+               var obj = OrdinaryCreateFromConstructor(newTarget, Object.prototype);
+               return Call(F, obj, argumentsList);
+       }
+}

 
 

-  function as_signed(value, bits) { var s = 32 - bits; return (value << s) >> s; }
-  function as_unsigned(value, bits) { var s = 32 - bits; return (value << s) >>> s; }
+// _ESAbstract.ArraySpeciesCreate
+/* global IsArray, ArrayCreate, Get, Type, IsConstructor, Construct */
+// 9.4.2.3. ArraySpeciesCreate ( originalArray, length )
+function ArraySpeciesCreate(originalArray, length) { // eslint-disable-line no-unused-vars
+       // 1. Assert: length is an integer Number ≥ 0.
+       // 2. If length is -0, set length to +0.
+       if (1/length === -Infinity) {
+               length = 0;
+       }

 
 

-  function packI8(n) { return [n & 0xff]; }
-  function unpackI8(bytes) { return as_signed(bytes[0], 8); }
+       // 3. Let isArray be ? IsArray(originalArray).
+       var isArray = IsArray(originalArray);

 
 

-  function packU8(n) { return [n & 0xff]; }
-  function unpackU8(bytes) { return as_unsigned(bytes[0], 8); }
+       // 4. If isArray is false, return ? ArrayCreate(length).
+       if (isArray === false) {
+               return ArrayCreate(length);
+       }

 
 

-  function packU8Clamped(n) { n = round(Number(n)); return [n < 0 ? 0 : n > 0xff ? 0xff : n & 0xff]; }
+       // 5. Let C be ? Get(originalArray, "constructor").
+       var C = Get(originalArray, 'constructor');

 
 

-  function packI16(n) { return [n & 0xff, (n >> 8) & 0xff]; }
-  function unpackI16(bytes) { return as_signed(bytes[1] << 8 | bytes[0], 16); }
+       // Polyfill.io - We skip this section as not sure how to make a cross-realm normal Array, a same-realm Array.
+       // 6. If IsConstructor(C) is true, then
+       // if (IsConstructor(C)) {
+               // a. Let thisRealm be the current Realm Record.
+               // b. Let realmC be ? GetFunctionRealm(C).
+               // c. If thisRealm and realmC are not the same Realm Record, then
+                       // i. If SameValue(C, realmC.[[Intrinsics]].[[%Array%]]) is true, set C to undefined.
+       // }
+       // 7. If Type(C) is Object, then
+       if (Type(C) === 'object') {
+               // a. Set C to ? Get(C, @@species).
+               C = 'Symbol' in this && 'species' in this.Symbol ? Get(C, this.Symbol.species) : undefined;
+               // b. If C is null, set C to undefined.
+               if (C === null) {
+                       C = undefined;
+               }
+       }
+       // 8. If C is undefined, return ? ArrayCreate(length).
+       if (C === undefined) {
+               return ArrayCreate(length);
+       }
+       // 9. If IsConstructor(C) is false, throw a TypeError exception.
+       if (!IsConstructor(C)) {
+               throw new TypeError('C must be a constructor');
+       }
+       // 10. Return ? Construct(C, « length »).
+       return Construct(C, [length]);
+}
+if (!("filter"in Array.prototype
+)) {

 
 

-  function packU16(n) { return [n & 0xff, (n >> 8) & 0xff]; }
-  function unpackU16(bytes) { return as_unsigned(bytes[1] << 8 | bytes[0], 16); }
+// Array.prototype.filter
+/* global CreateMethodProperty, ToObject, ToLength, Get, IsCallable, ArraySpeciesCreate, ToString, HasProperty, ToBoolean, Call, CreateDataPropertyOrThrow */
+// 22.1.3.7. Array.prototype.filter ( callbackfn [ , thisArg ] )
+CreateMethodProperty(Array.prototype, 'filter', function filter(callbackfn /* [ , thisArg ] */) {
+       // 1. Let O be ? ToObject(this value).
+       var O = ToObject(this);
+       // 2. Let len be ? ToLength(? Get(O, "length")).
+       var len = ToLength(Get(O, "length"));
+       // 3. If IsCallable(callbackfn) is false, throw a TypeError exception.
+       if (IsCallable(callbackfn) === false) {
+               throw new TypeError(callbackfn + ' is not a function');
+       }
+       // 4. If thisArg is present, let T be thisArg; else let T be undefined.
+       var T = arguments.length > 1 ? arguments[1] : undefined;
+       // 5. Let A be ? ArraySpeciesCreate(O, 0).
+       var A = ArraySpeciesCreate(O, 0);
+       // 6. Let k be 0.
+       var k = 0;
+       // 7. Let to be 0.
+       var to = 0;
+       // 8. Repeat, while k < len
+       while (k < len) {
+               // a. Let Pk be ! ToString(k).
+               var Pk = ToString(k);
+               // b. Let kPresent be ? HasProperty(O, Pk).
+               var kPresent = HasProperty(O, Pk);
+               // c. If kPresent is true, then
+               if (kPresent) {
+                       // i. Let kValue be ? Get(O, Pk).
+                       var kValue = Get(O, Pk);
+                       // ii. Let selected be ToBoolean(? Call(callbackfn, T, « kValue, k, O »)).
+                       var selected = ToBoolean(Call(callbackfn, T, [kValue, k, O]));
+                       // iii. If selected is true, then
+                       if (selected) {
+                               // 1. Perform ? CreateDataPropertyOrThrow(A, ! ToString(to), kValue)
+                               CreateDataPropertyOrThrow(A, ToString(to), kValue);
+                               // 2. Increase to by 1.
+                               to = to + 1;
+                       }

 
 

-  function packI32(n) { return [n & 0xff, (n >> 8) & 0xff, (n >> 16) & 0xff, (n >> 24) & 0xff]; }
-  function unpackI32(bytes) { return as_signed(bytes[3] << 24 | bytes[2] << 16 | bytes[1] << 8 | bytes[0], 32); }
+               }
+               // d. Increase k by 1.
+               k = k + 1;
+       }
+       // 9. Return A.
+       return A;
+});

 
 

-  function packU32(n) { return [n & 0xff, (n >> 8) & 0xff, (n >> 16) & 0xff, (n >> 24) & 0xff]; }
-  function unpackU32(bytes) { return as_unsigned(bytes[3] << 24 | bytes[2] << 16 | bytes[1] << 8 | bytes[0], 32); }
+}

 
 

-  function packIEEE754(v, ebits, fbits) {
+if (!("map"in Array.prototype
+)) {

 
 

-    var bias = (1 << (ebits - 1)) - 1;
+// Array.prototype.map
+/* global ArraySpeciesCreate, Call, CreateDataPropertyOrThrow, CreateMethodProperty, Get, HasProperty, IsCallable, ToLength, ToObject, ToString */
+/* global CreateMethodProperty, ToObject, ToLength, Get, ArraySpeciesCreate, ToString, HasProperty, Call, CreateDataPropertyOrThrow */
+// 22.1.3.16. Array.prototype.map ( callbackfn [ , thisArg ] )
+CreateMethodProperty(Array.prototype, 'map', function map(callbackfn /* [ , thisArg ] */) {
+       // 1. Let O be ? ToObject(this value).
+       var O = ToObject(this);
+       // 2. Let len be ? ToLength(? Get(O, "length")).
+       var len = ToLength(Get(O, "length"));
+       // 3. If IsCallable(callbackfn) is false, throw a TypeError exception.
+       if (IsCallable(callbackfn) === false) {
+               throw new TypeError(callbackfn + ' is not a function');
+       }
+       // 4. If thisArg is present, let T be thisArg; else let T be undefined.
+       var T = arguments.length > 1 ? arguments[1] : undefined;
+       // 5. Let A be ? ArraySpeciesCreate(O, len).
+       var A = ArraySpeciesCreate(O, len);
+       // 6. Let k be 0.
+       var k = 0;
+       // 7. Repeat, while k < len
+       while (k < len) {
+               // a. Let Pk be ! ToString(k).
+               var Pk = ToString(k);
+               // b. Let kPresent be ? HasProperty(O, Pk).
+               var kPresent = HasProperty(O, Pk);
+               // c. If kPresent is true, then
+               if (kPresent) {
+                       // i. Let kValue be ? Get(O, Pk).
+                       var kValue = Get(O, Pk);
+                       // ii. Let mappedValue be ? Call(callbackfn, T, « kValue, k, O »).
+                       var mappedValue = Call(callbackfn, T, [kValue, k, O]);
+                       // iii. Perform ? CreateDataPropertyOrThrow(A, Pk, mappedValue).
+                       CreateDataPropertyOrThrow(A, Pk, mappedValue);
+               }
+               // d. Increase k by 1.
+               k = k + 1;
+       }
+       // 8. Return A.
+       return A;
+});

 
 

-    function roundToEven(n) {
-      var w = floor(n), f = n - w;
-      if (f < 0.5)
-        return w;
-      if (f > 0.5)
-        return w + 1;
-      return w % 2 ? w + 1 : w;
-    }
+}

 
 

-    // Compute sign, exponent, fraction
-    var s, e, f;
-    if (v !== v) {
-      // NaN
-      // http://dev.w3.org/2006/webapi/WebIDL/#es-type-mapping
-      e = (1 << ebits) - 1; f = pow(2, fbits - 1); s = 0;
-    } else if (v === Infinity || v === -Infinity) {
-      e = (1 << ebits) - 1; f = 0; s = (v < 0) ? 1 : 0;
-    } else if (v === 0) {
-      e = 0; f = 0; s = (1 / v === -Infinity) ? 1 : 0;
-    } else {
-      s = v < 0;
-      v = abs(v);
+if (!("of"in Array
+)) {

 
 

-      if (v >= pow(2, 1 - bias)) {
-        // Normalized
-        e = min(floor(log(v) / LN2), 1023);
-        var significand = v / pow(2, e);
-        if (significand < 1) {
-          e -= 1;
-          significand *= 2;
-        }
-        if (significand >= 2) {
-          e += 1;
-          significand /= 2;
-        }
-        var d = pow(2, fbits);
-        f = roundToEven(significand * d) - d;
-        e += bias;
-        if (f / d >= 1) {
-          e += 1;
-          f = 0;
-        }
-        if (e > 2 * bias) {
-          // Overflow
-          e = (1 << ebits) - 1;
-          f = 0;
-        }
-      } else {
-        // Denormalized
-        e = 0;
-        f = roundToEven(v / pow(2, 1 - bias - fbits));
-      }
-    }
+// Array.of
+/* global ArrayCreate, Construct, CreateDataPropertyOrThrow, CreateMethodProperty, IsConstructor, ToString */
+// 22.1.2.3. Array.of ( ...items )
+CreateMethodProperty(Array, 'of', function of() {
+       // 1. Let len be the actual number of arguments passed to this function.
+       var len = arguments.length;
+       // 2. Let items be the List of arguments passed to this function.
+       var items = arguments;
+       // 3. Let C be the this value.
+       var C = this;
+       // 4. If IsConstructor(C) is true, then
+       if (IsConstructor(C)) {
+               // a. Let A be ? Construct(C, « len »).
+               var A = Construct(C, [len]);
+               // 5. Else,
+       } else {
+               // a. Let A be ? ArrayCreate(len).
+               var A = ArrayCreate(len);
+       }
+       // 6. Let k be 0.
+       var k = 0;
+       // 7. Repeat, while k < len
+       while (k < len) {
+               // a. Let kValue be items[k].
+               var kValue = items[k];
+               // b. Let Pk be ! ToString(k).
+               var Pk = ToString(k);
+               // c. Perform ? CreateDataPropertyOrThrow(A, Pk, kValue).
+               CreateDataPropertyOrThrow(A, Pk, kValue);
+               // d. Increase k by 1.
+               var k = k + 1;

 
 

-    // Pack sign, exponent, fraction
-    var bits = [], i;
-    for (i = fbits; i; i -= 1) { bits.push(f % 2 ? 1 : 0); f = floor(f / 2); }
-    for (i = ebits; i; i -= 1) { bits.push(e % 2 ? 1 : 0); e = floor(e / 2); }
-    bits.push(s ? 1 : 0);
-    bits.reverse();
-    var str = bits.join('');
+       }
+       // 8. Perform ? Set(A, "length", len, true)
+       A["length"] = len;
+       // 9. Return A.
+       return A;
+});

 
 

-    // Bits to bytes
-    var bytes = [];
-    while (str.length) {
-      bytes.unshift(parseInt(str.substring(0, 8), 2));
-      str = str.substring(8);
-    }
-    return bytes;
-  }
+}

 
 

-  function unpackIEEE754(bytes, ebits, fbits) {
-    // Bytes to bits
-    var bits = [], i, j, b, str,
-        bias, s, e, f;
+if (!("seal"in Object&&function(){try{return Object.seal("1"),!0}catch(t){return!1}}
+)) {

 
 

-    for (i = 0; i < bytes.length; ++i) {
-      b = bytes[i];
-      for (j = 8; j; j -= 1) {
-        bits.push(b % 2 ? 1 : 0); b = b >> 1;
-      }
-    }
-    bits.reverse();
-    str = bits.join('');
+// Object.seal
+/* global CreateMethodProperty, Type */
+// 19.1.2.19 Object.seal ( O )
+(function(originalObjectSeal) {
+    CreateMethodProperty(Object, 'seal', function seal(O) {
+        // 1. If Type(O) is not Object, return O.
+        if (Type(O) === 'object') {
+            return O;
+        }
+        // 2. Let status be ? SetIntegrityLevel(O, "sealed").
+        // 3. If status is false, throw a TypeError exception.
+        // 4. Return O.
+        return originalObjectSeal ? originalObjectSeal(O) : O;
+    });
+}(Object.seal));

 
 

-    // Unpack sign, exponent, fraction
-    bias = (1 << (ebits - 1)) - 1;
-    s = parseInt(str.substring(0, 1), 2) ? -1 : 1;
-    e = parseInt(str.substring(1, 1 + ebits), 2);
-    f = parseInt(str.substring(1 + ebits), 2);

 
 

-    // Produce number
-    if (e === (1 << ebits) - 1) {
-      return f !== 0 ? NaN : s * Infinity;
-    } else if (e > 0) {
-      // Normalized
-      return s * pow(2, e - bias) * (1 + f / pow(2, fbits));
-    } else if (f !== 0) {
-      // Denormalized
-      return s * pow(2, -(bias - 1)) * (f / pow(2, fbits));
-    } else {
-      return s < 0 ? -0 : 0;
-    }
-  }
+}

 
 

-  function unpackF64(b) { return unpackIEEE754(b, 11, 52); }
-  function packF64(v) { return packIEEE754(v, 11, 52); }
-  function unpackF32(b) { return unpackIEEE754(b, 8, 23); }
-  function packF32(v) { return packIEEE754(v, 8, 23); }

 
 

+// Object.setPrototypeOf
+/* global CreateMethodProperty */
+// ES6-shim 0.16.0 (c) 2013-2014 Paul Miller (http://paulmillr.com)
+// ES6-shim may be freely distributed under the MIT license.
+// For more details and documentation:
+// https://github.com/paulmillr/es6-shim/
+
+ // NOTE:  This versions needs object ownership
+  //        because every promoted object needs to be reassigned
+  //        otherwise uncompatible browsers cannot work as expected

   //
   //

-  // 3 The ArrayBuffer Type
+  // NOTE:  This might need es5-shim or polyfills upfront
+  //        because it's based on ES5 API.
+  //        (probably just an IE <= 8 problem)

   //
   //

+  // NOTE:  nodejs is fine in version 0.8, 0.10, and future versions.
+(function () {
+       if (Object.setPrototypeOf) { return; }

 
 

-  (function() {
+       /*jshint proto: true */
+       // @author    Andrea Giammarchi - @WebReflection

 
 

-    function ArrayBuffer(length) {
-      length = ToInt32(length);
-      if (length < 0) throw RangeError('ArrayBuffer size is not a small enough positive integer.');
-      Object.defineProperty(this, 'byteLength', {value: length});
-      Object.defineProperty(this, '_bytes', {value: Array(length)});
+       var getOwnPropertyNames = Object.getOwnPropertyNames;
+       var getOwnPropertyDescriptor = Object.getOwnPropertyDescriptor;
+       var create = Object.create;
+       var defineProperty = Object.defineProperty;
+       var getPrototypeOf = Object.getPrototypeOf;
+       var objProto = Object.prototype;

 
 

-      for (var i = 0; i < length; i += 1)
-        this._bytes[i] = 0;
-    }
+       var copyDescriptors = function (target, source) {
+               // define into target descriptors from source
+               getOwnPropertyNames(source).forEach(function (key) {
+                       defineProperty(
+                               target,
+                               key,
+                               getOwnPropertyDescriptor(source, key)
+                       );
+               });
+               return target;
+       };
+       // used as fallback when no promotion is possible
+       var createAndCopy = function setPrototypeOf(origin, proto) {
+               return copyDescriptors(create(proto), origin);
+       };
+       var set, sPOf;
+       try {
+               // this might fail for various reasons
+               // ignore if Chrome cought it at runtime
+               set = getOwnPropertyDescriptor(objProto, '__proto__').set;
+               set.call({}, null);
+               // setter not poisoned, it can promote
+               // Firefox, Chrome
+               sPOf = function setPrototypeOf(origin, proto) {
+                       set.call(origin, proto);
+                       return origin;
+               };
+       } catch (e) {
+               // do one or more feature detections
+               set = { __proto__: null };
+               // if proto does not work, needs to fallback
+               // some Opera, Rhino, ducktape
+               if (set instanceof Object) {
+                       sPOf = createAndCopy;
+               } else {
+                       // verify if null objects are buggy
+                       /* eslint-disable no-proto */
+                       set.__proto__ = objProto;
+                       /* eslint-enable no-proto */
+                       // if null objects are buggy
+                       // nodejs 0.8 to 0.10
+                       if (set instanceof Object) {
+                               sPOf = function setPrototypeOf(origin, proto) {
+                                       // use such bug to promote
+                                       /* eslint-disable no-proto */
+                                       origin.__proto__ = proto;
+                                       /* eslint-enable no-proto */
+                                       return origin;
+                               };
+                       } else {
+                               // try to use proto or fallback
+                               // Safari, old Firefox, many others
+                               sPOf = function setPrototypeOf(origin, proto) {
+                                       // if proto is not null
+                                       if (getPrototypeOf(origin)) {
+                                               // use __proto__ to promote
+                                               /* eslint-disable no-proto */
+                                               origin.__proto__ = proto;
+                                               /* eslint-enable no-proto */
+                                               return origin;
+                                       } else {
+                                               // otherwise unable to promote: fallback
+                                               return createAndCopy(origin, proto);
+                                       }
+                               };
+                       }
+               }
+       }
+       CreateMethodProperty(Object, 'setPrototypeOf', sPOf);
+}());
+if (!("Promise"in this
+)) {

 
 

-    global.ArrayBuffer = global.ArrayBuffer || ArrayBuffer;
+// Promise
+!function(n){function t(r){if(e[r])return e[r].exports;var o=e[r]={i:r,l:!1,exports:{}};return n[r].call(o.exports,o,o.exports,t),o.l=!0,o.exports}var e={};t.m=n,t.c=e,t.i=function(n){return n},t.d=function(n,e,r){t.o(n,e)||Object.defineProperty(n,e,{configurable:!1,enumerable:!0,get:r})},t.n=function(n){var e=n&&n.__esModule?function(){return n["default"]}:function(){return n};return t.d(e,"a",e),e},t.o=function(n,t){return Object.prototype.hasOwnProperty.call(n,t)},t.p="",t(t.s=100)}({100:/*!***********************!*\
+  !*** ./src/global.js ***!
+  \***********************/
+function(n,t,e){(function(n){var t=e(/*! ./yaku */5);try{n.Promise=t,window.Promise=t}catch(r){}}).call(t,e(/*! ./../~/webpack/buildin/global.js */2))},2:/*!***********************************!*\
+  !*** (webpack)/buildin/global.js ***!
+  \***********************************/
+function(n,t){var e;e=function(){return this}();try{e=e||Function("return this")()||(0,eval)("this")}catch(r){"object"==typeof window&&(e=window)}n.exports=e},5:/*!*********************!*\
+  !*** ./src/yaku.js ***!
+  \*********************/
+function(n,t,e){(function(t){!function(){"use strict";function e(){return rn[q][B]||D}function r(n){return n&&"object"==typeof n}function o(n){return"function"==typeof n}function i(n,t){return n instanceof t}function u(n){return i(n,M)}function c(n,t,e){if(!t(n))throw h(e)}function f(){try{return R.apply(S,arguments)}catch(n){return nn.e=n,nn}}function s(n,t){return R=n,S=t,f}function a(n,t){function e(){for(var e=0;e<o;)t(r[e],r[e+1]),r[e++]=P,r[e++]=P;o=0,r.length>n&&(r.length=n)}var r=A(n),o=0;return function(n,t){r[o++]=n,r[o++]=t,2===o&&rn.nextTick(e)}}function l(n,t){var e,r,u,c,f=0;if(!n)throw h(Q);var a=n[rn[q][z]];if(o(a))r=a.call(n);else{if(!o(n.next)){if(i(n,A)){for(e=n.length;f<e;)t(n[f],f++);return f}throw h(Q)}r=n}for(;!(u=r.next()).done;)if((c=s(t)(u.value,f++))===nn)throw o(r[G])&&r[G](),c.e;return f}function h(n){return new TypeError(n)}function v(n){return(n?"":V)+(new M).stack}function _(n,t){var e="on"+n.toLowerCase(),r=O[e];H&&H.listeners(n).length?n===Z?H.emit(n,t._v,t):H.emit(n,t):r?r({reason:t._v,promise:t}):rn[n](t._v,t)}function p(n){return n&&n._s}function d(n){if(p(n))return new n(tn);var t,e,r;return t=new n(function(n,o){if(t)throw h();e=n,r=o}),c(e,o),c(r,o),t}function w(n,t){var e=!1;return function(r){e||(e=!0,L&&(n[N]=v(!0)),t===Y?k(n,r):x(n,t,r))}}function y(n,t,e,r){return o(e)&&(t._onFulfilled=e),o(r)&&(n[J]&&_(X,n),t._onRejected=r),L&&(t._p=n),n[n._c++]=t,n._s!==$&&on(n,t),t}function m(n){if(n._umark)return!0;n._umark=!0;for(var t,e=0,r=n._c;e<r;)if(t=n[e++],t._onRejected||m(t))return!0}function j(n,t){function e(n){return r.push(n.replace(/^\s+|\s+$/g,""))}var r=[];return L&&(t[N]&&e(t[N]),function o(n){n&&K in n&&(o(n._next),e(n[K]+""),o(n._p))}(t)),(n&&n.stack?n.stack:n)+("\n"+r.join("\n")).replace(en,"")}function g(n,t){return n(t)}function x(n,t,e){var r=0,o=n._c;if(n._s===$)for(n._s=t,n._v=e,t===U&&(L&&u(e)&&(e.longStack=j(e,n)),un(n));r<o;)on(n,n[r++]);return n}function k(n,t){if(t===n&&t)return x(n,U,h(W)),n;if(t!==C&&(o(t)||r(t))){var e=s(b)(t);if(e===nn)return x(n,U,e.e),n;o(e)?(L&&p(t)&&(n._next=t),p(t)?T(n,t,e):rn.nextTick(function(){T(n,t,e)})):x(n,Y,t)}else x(n,Y,t);return n}function b(n){return n.then}function T(n,t,e){var r=s(e,t)(function(e){t&&(t=C,k(n,e))},function(e){t&&(t=C,x(n,U,e))});r===nn&&t&&(x(n,U,r.e),t=C)}var P,R,S,C=null,F="object"==typeof self,O=F?self:t,E=O.Promise,H=O.process,I=O.console,L=!1,A=Array,M=Error,U=1,Y=2,$=3,q="Symbol",z="iterator",B="species",D=q+"("+B+")",G="return",J="_uh",K="_pt",N="_st",Q="Invalid argument",V="\nFrom previous ",W="Chaining cycle detected for promise",X="rejectionHandled",Z="unhandledRejection",nn={e:C},tn=function(){},en=/^.+\/node_modules\/yaku\/.+\n?/gm,rn=function(n){var t,e=this;if(!r(e)||e._s!==P)throw h("Invalid this");if(e._s=$,L&&(e[K]=v()),n!==tn){if(!o(n))throw h(Q);t=s(n)(w(e,Y),w(e,U)),t===nn&&x(e,U,t.e)}};rn["default"]=rn,function(n,t){for(var e in t)n[e]=t[e]}(rn.prototype,{then:function(n,t){if(this._s===undefined)throw h();return y(this,d(rn.speciesConstructor(this,rn)),n,t)},"catch":function(n){return this.then(P,n)},"finally":function(n){return this.then(function(t){return rn.resolve(n()).then(function(){return t})},function(t){return rn.resolve(n()).then(function(){throw t})})},_c:0,_p:C}),rn.resolve=function(n){return p(n)?n:k(d(this),n)},rn.reject=function(n){return x(d(this),U,n)},rn.race=function(n){var t=this,e=d(t),r=function(n){x(e,Y,n)},o=function(n){x(e,U,n)},i=s(l)(n,function(n){t.resolve(n).then(r,o)});return i===nn?t.reject(i.e):e},rn.all=function(n){function t(n){x(o,U,n)}var e,r=this,o=d(r),i=[];return(e=s(l)(n,function(n,u){r.resolve(n).then(function(n){i[u]=n,--e||x(o,Y,i)},t)}))===nn?r.reject(e.e):(e||x(o,Y,[]),o)},rn.Symbol=O[q]||{},s(function(){Object.defineProperty(rn,e(),{get:function(){return this}})})(),rn.speciesConstructor=function(n,t){var r=n.constructor;return r?r[e()]||t:t},rn.unhandledRejection=function(n,t){I&&I.error("Uncaught (in promise)",L?t.longStack:j(n,t))},rn.rejectionHandled=tn,rn.enableLongStackTrace=function(){L=!0},rn.nextTick=F?function(n){E?new E(function(n){n()}).then(n):setTimeout(n)}:H.nextTick,rn._s=1;var on=a(999,function(n,t){var e,r;return(r=n._s!==U?t._onFulfilled:t._onRejected)===P?void x(t,n._s,n._v):(e=s(g)(r,n._v))===nn?void x(t,U,e.e):void k(t,e)}),un=a(9,function(n){m(n)||(n[J]=1,_(Z,n))});try{n.exports=rn}catch(cn){O.Yaku=rn}}()}).call(t,e(/*! ./../~/webpack/buildin/global.js */2))}});
+}

 
 

-    //
-    // 5 The Typed Array View Types
-    //
+if (!("flags"in RegExp.prototype
+)) {

 
 

-    function $TypedArray$() {
+// RegExp.prototype.flags
+/* global Get, ToBoolean, Type */
+Object.defineProperty(RegExp.prototype, 'flags', {
+       configurable: true,
+       enumerable: false,
+       get: function () {
+               // 21.2.5.3.1 Let R be the this value.
+               var R = this;

 
 

-      // %TypedArray% ( length )
-      if (!arguments.length || typeof arguments[0] !== 'object') {
-        return (function(length) {
-          length = ToInt32(length);
-          if (length < 0) throw RangeError('length is not a small enough positive integer.');
-          Object.defineProperty(this, 'length', {value: length});
-          Object.defineProperty(this, 'byteLength', {value: length * this.BYTES_PER_ELEMENT});
-          Object.defineProperty(this, 'buffer', {value: new ArrayBuffer(this.byteLength)});
-          Object.defineProperty(this, 'byteOffset', {value: 0});
+               // 21.2.5.3.2 If Type(R) is not Object, throw a TypeError exception.
+               if (Type(R) !== 'object') {
+                       throw new TypeError('Method called on incompatible type: must be an object.');
+               }
+               // 21.2.5.3.3 Let result be the empty String.
+               var result = '';

 
 

-         }).apply(this, arguments);
-      }
+               // 21.2.5.3.4 Let global be ToBoolean(? Get(R, "global")).
+               var global = ToBoolean(Get(R, 'global'));

 
 

-      // %TypedArray% ( typedArray )
-      if (arguments.length >= 1 &&
-          Type(arguments[0]) === 'object' &&
-          arguments[0] instanceof $TypedArray$) {
-        return (function(typedArray){
-          if (this.constructor !== typedArray.constructor) throw TypeError();
+               // 21.2.5.3.5 If global is true, append the code unit 0x0067 (LATIN SMALL LETTER G) as the last code unit of result.
+               if (global) {
+                       result += 'g';
+               }

 
 

-          var byteLength = typedArray.length * this.BYTES_PER_ELEMENT;
-          Object.defineProperty(this, 'buffer', {value: new ArrayBuffer(byteLength)});
-          Object.defineProperty(this, 'byteLength', {value: byteLength});
-          Object.defineProperty(this, 'byteOffset', {value: 0});
-          Object.defineProperty(this, 'length', {value: typedArray.length});
+               // 21.2.5.3.6 Let ignoreCase be ToBoolean(? Get(R, "ignoreCase")).
+               var ignoreCase = ToBoolean(Get(R, 'ignoreCase'));
+
+               // 21.2.5.3.7 If ignoreCase is true, append the code unit 0x0069 (LATIN SMALL LETTER I) as the last code unit of result.
+               if (ignoreCase) {
+                       result += 'i';
+               }
+
+               // 21.2.5.3.8 Let multiline be ToBoolean(? Get(R, "multiline")).
+               var multiline = ToBoolean(Get(R, 'multiline'));
+
+               // 21.2.5.3.9 If multiline is true, append the code unit 0x006D (LATIN SMALL LETTER M) as the last code unit of result.
+               if (multiline) {
+                       result += 'm';
+               }
+
+               // 21.2.5.3.10 Let unicode be ToBoolean(? Get(R, "unicode")).
+               var unicode = ToBoolean(Get(R, 'unicode'));
+
+               // 21.2.5.3.11 If unicode is true, append the code unit 0x0075 (LATIN SMALL LETTER U) as the last code unit of result.
+               if (unicode) {
+                       result += 'u';
+               }
+
+               // 21.2.5.3.12 Let sticky be ToBoolean(? Get(R, "sticky")).
+               var sticky = ToBoolean(Get(R, 'sticky'));
+
+               // 21.2.5.3.13 If sticky is true, append the code unit 0x0079 (LATIN SMALL LETTER Y) as the last code unit of result.
+               if (sticky) {
+                       result += 'y';
+               }
+
+               // 21.2.5.3.14 Return result.
+               return result;
+       }
+});
+
+}
+
+if (!("fromCodePoint"in String&&1===String.fromCodePoint.length
+)) {
+
+// String.fromCodePoint
+/* global CreateMethodProperty, IsArray, SameValue, ToInteger, ToNumber, UTF16Encoding */
+
+// 21.1.2.2. String.fromCodePoint ( ...codePoints )
+CreateMethodProperty(String, 'fromCodePoint', function fromCodePoint(_) { // eslint-disable-line no-unused-vars
+       // Polyfill.io - List to store the characters whilst iterating over the code points.
+       var result = [];
+       // 1. Let codePoints be a List containing the arguments passed to this function.
+       var codePoints = arguments;
+       // 2. Let length be the number of elements in codePoints.
+       var length = arguments.length;
+       // 3. Let elements be a new empty List.
+       var elements = [];
+       // 4. Let nextIndex be 0.
+       var nextIndex = 0;
+       // 5. Repeat, while nextIndex < length
+       while (nextIndex < length) {
+               // Polyfill.io - We reset the elements List as we store the partial results in the result List.
+               var elements = [];
+               // a. Let next be codePoints[nextIndex].
+               var next = codePoints[nextIndex];
+               // b. Let nextCP be ? ToNumber(next).
+               var nextCP = ToNumber(next);
+               // c. If SameValue(nextCP, ToInteger(nextCP)) is false, throw a RangeError exception.
+               if (SameValue(nextCP, ToInteger(nextCP)) === false) {
+                       throw new RangeError('Invalid code point ' + Object.prototype.toString.call(nextCP));
+               }
+               // d. If nextCP < 0 or nextCP > 0x10FFFF, throw a RangeError exception.
+               if (nextCP < 0 || nextCP > 0x10FFFF) {
+                       throw new RangeError('Invalid code point ' + Object.prototype.toString.call(nextCP));
+               }
+               // e. Append the elements of the UTF16Encoding of nextCP to the end of elements.
+               // Polyfill.io - UTF16Encoding can return a single codepoint or a list of multiple codepoints.
+               var cp = UTF16Encoding(nextCP);
+               if (IsArray(cp)) {
+                       elements = elements.concat(cp);
+               } else {
+                       elements.push(cp);
+               }
+               // f. Let nextIndex be nextIndex + 1.
+               nextIndex = nextIndex + 1;
+
+               // Polyfill.io - Retrieving the characters whilst iterating enables the function to work in a memory efficient and performant way.
+               result.push(String.fromCharCode.apply(null, elements));
+       }
+       // 6. Return the String value whose elements are, in order, the elements in the List elements. If length is 0, the empty string is returned.
+       return length === 0 ? '' : result.join('');
+});
+
+}

 
 

-          for (var i = 0; i < this.length; i += 1)
-            this._setter(i, typedArray._getter(i));
+if (!("codePointAt"in String.prototype
+)) {

 
 

-        }).apply(this, arguments);
-      }
+// String.prototype.codePointAt
+/* global CreateMethodProperty, RequireObjectCoercible, ToInteger, ToString, UTF16Decode */
+// 21.1.3.3. String.prototype.codePointAt ( pos )
+CreateMethodProperty(String.prototype, 'codePointAt', function codePointAt(pos) {
+       // 1. Let O be ? RequireObjectCoercible(this value).
+       var O = RequireObjectCoercible(this);
+       // 2. Let S be ? ToString(O).
+       var S = ToString(O);
+       // 3. Let position be ? ToInteger(pos).
+       var position = ToInteger(pos);
+       // 4. Let size be the length of S.
+       var size = S.length;
+       // 5. If position < 0 or position ≥ size, return undefined.
+       if (position < 0 || position >= size) {
+               return undefined;
+       }
+       // 6. Let first be the numeric value of the code unit at index position within the String S.
+       var first = String.prototype.charCodeAt.call(S, position);
+       // 7. If first < 0xD800 or first > 0xDBFF or position+1 = size, return first.
+       if (first < 0xD800 || first > 0xDBFF || position + 1 === size) {
+               return first;
+       }
+       // 8. Let second be the numeric value of the code unit at index position+1 within the String S.
+       var second = String.prototype.charCodeAt.call(S, position + 1);
+       // 9. If second < 0xDC00 or second > 0xDFFF, return first.
+       if (second < 0xDC00 || second > 0xDFFF) {
+               return first;
+       }
+       // 10. Return UTF16Decode(first, second).
+       // 21.1.3.3.10 Return UTF16Decode(first, second).
+       return UTF16Decode(first, second);
+});

 
 

-      // %TypedArray% ( array )
-      if (arguments.length >= 1 &&
-          Type(arguments[0]) === 'object' &&
-          !(arguments[0] instanceof $TypedArray$) &&
-          !(arguments[0] instanceof ArrayBuffer || Class(arguments[0]) === 'ArrayBuffer')) {
-        return (function(array) {
+}

 
 

-          var byteLength = array.length * this.BYTES_PER_ELEMENT;
-          Object.defineProperty(this, 'buffer', {value: new ArrayBuffer(byteLength)});
-          Object.defineProperty(this, 'byteLength', {value: byteLength});
-          Object.defineProperty(this, 'byteOffset', {value: 0});
-          Object.defineProperty(this, 'length', {value: array.length});
+if (!("endsWith"in String.prototype
+)) {

 
 

-          for (var i = 0; i < this.length; i += 1) {
-            var s = array[i];
-            this._setter(i, Number(s));
-          }
-        }).apply(this, arguments);
-      }
+// String.prototype.endsWith
+/* global CreateMethodProperty, IsRegExp, RequireObjectCoercible, ToInteger, ToString */
+// 21.1.3.6. String.prototype.endsWith ( searchString [ , endPosition ] )
+CreateMethodProperty(String.prototype, 'endsWith', function endsWith(searchString /* [ , endPosition ] */) {
+       'use strict';
+       var endPosition = arguments.length > 1 ? arguments[1] : undefined;
+       // 1. Let O be ? RequireObjectCoercible(this value).
+       var O = RequireObjectCoercible(this);
+       // 2. Let S be ? ToString(O).
+       var S = ToString(O);
+       // 3. Let isRegExp be ? IsRegExp(searchString).
+       var isRegExp = IsRegExp(searchString);
+       // 4. If isRegExp is true, throw a TypeError exception.
+       if (isRegExp) {
+               throw new TypeError('First argument to String.prototype.endsWith must not be a regular expression');
+       }
+       // 5. Let searchStr be ? ToString(searchString).
+       var searchStr = ToString(searchString);
+       // 6. Let len be the length of S.
+       var len = S.length;
+       // 7. If endPosition is undefined, let pos be len, else let pos be ? ToInteger(endPosition).
+       var pos = endPosition === undefined ? len : ToInteger(endPosition);
+       // 8. Let end be min(max(pos, 0), len).
+       var end = Math.min(Math.max(pos, 0), len);
+       // 9. Let searchLength be the length of searchStr.
+       var searchLength = searchStr.length;
+       // 10. Let start be end - searchLength.
+       var start = end - searchLength;
+       // 11. If start is less than 0, return false.
+       if (start < 0) {
+               return false;
+       }
+       // 12. If the sequence of elements of S starting at start of length searchLength is the same as the full element sequence of searchStr, return true.
+       if (S.substr(start, searchLength) === searchStr) {
+               return true;
+        }
+       // 13. Otherwise, return false.
+       return false;
+});

 
 

-      // %TypedArray% ( buffer, byteOffset=0, length=undefined )
-      if (arguments.length >= 1 &&
-          Type(arguments[0]) === 'object' &&
-          (arguments[0] instanceof ArrayBuffer || Class(arguments[0]) === 'ArrayBuffer')) {
-        return (function(buffer, byteOffset, length) {
+}

 
 

-          byteOffset = ToUint32(byteOffset);
-          if (byteOffset > buffer.byteLength)
-            throw RangeError('byteOffset out of range');
+if (!("includes"in String.prototype
+)) {

 
 

-          // The given byteOffset must be a multiple of the element
-          // size of the specific type, otherwise an exception is raised.
-          if (byteOffset % this.BYTES_PER_ELEMENT)
-            throw RangeError('buffer length minus the byteOffset is not a multiple of the element size.');
+// String.prototype.includes
+/* global CreateMethodProperty, IsRegExp, RequireObjectCoercible, ToInteger, ToString */
+// 21.1.3.7. String.prototype.includes ( searchString [ , position ] )
+CreateMethodProperty(String.prototype, 'includes', function includes(searchString /* [ , position ] */) {
+       'use strict';
+       var position = arguments.length > 1 ? arguments[1] : undefined;
+       // 1. Let O be ? RequireObjectCoercible(this value).
+       var O = RequireObjectCoercible(this);
+       // 2. Let S be ? ToString(O).
+       var S = ToString(O);
+       // 3. Let isRegExp be ? IsRegExp(searchString).
+       var isRegExp = IsRegExp(searchString);
+       // 4. If isRegExp is true, throw a TypeError exception.
+       if (isRegExp) {
+               throw new TypeError('First argument to String.prototype.includes must not be a regular expression');
+       }
+       // 5. Let searchStr be ? ToString(searchString).
+       var searchStr = ToString(searchString);
+       // 6. Let pos be ? ToInteger(position). (If position is undefined, this step produces the value 0.)
+       var pos = ToInteger(position);
+       // 7. Let len be the length of S.
+       var len = S.length;
+       // 8. Let start be min(max(pos, 0), len).
+       var start = Math.min(Math.max(pos, 0), len);
+       // 9. Let searchLen be the length of searchStr.
+       // var searchLength = searchStr.length;
+       // 10. If there exists any integer k not smaller than start such that k + searchLen is not greater than len, and for all nonnegative integers j less than searchLen, the code unit at index k+j within S is the same as the code unit at index j within searchStr, return true; but if there is no such integer k, return false.
+       return String.prototype.indexOf.call(S, searchStr, start) !== -1;
+});

 
 

-          if (length === undefined) {
-            var byteLength = buffer.byteLength - byteOffset;
-            if (byteLength % this.BYTES_PER_ELEMENT)
-              throw RangeError('length of buffer minus byteOffset not a multiple of the element size');
-            length = byteLength / this.BYTES_PER_ELEMENT;
+}

 
 

-          } else {
-            length = ToUint32(length);
-            byteLength = length * this.BYTES_PER_ELEMENT;
-          }
+if (!("repeat"in String.prototype
+)) {

 
 

-          if ((byteOffset + byteLength) > buffer.byteLength)
-            throw RangeError('byteOffset and length reference an area beyond the end of the buffer');
+// String.prototype.repeat
+/* global CreateMethodProperty, RequireObjectCoercible, ToInteger, ToString */
+// 21.1.3.15String.prototype.repeat ( count )
+CreateMethodProperty(String.prototype, 'repeat', function repeat(count) {
+       'use strict';
+       // 1. Let O be ? RequireObjectCoercible(this value).
+       var O = RequireObjectCoercible(this);
+       // 2. Let S be ? ToString(O).
+       var S = ToString(O);
+       // 3. Let n be ? ToInteger(count).
+       var n = ToInteger(count);
+       // 4. If n < 0, throw a RangeError exception.
+       if (n < 0) {
+               throw new RangeError('Invalid count value');
+       }
+       // 5. If n is +∞, throw a RangeError exception.
+       if (n === Infinity) {
+               throw new RangeError('Invalid count value');
+       }
+       // 6. Let T be the String value that is made from n copies of S appended together. If n is 0, T is the empty String.
+       var T = n === 0 ? '' : new Array(n + 1).join(S);
+       // 7. Return T.
+       return T;
+});

 
 

-          Object.defineProperty(this, 'buffer', {value: buffer});
-          Object.defineProperty(this, 'byteLength', {value: byteLength});
-          Object.defineProperty(this, 'byteOffset', {value: byteOffset});
-          Object.defineProperty(this, 'length', {value: length});
+}

 
 

-        }).apply(this, arguments);
-      }
+if (!("startsWith"in String.prototype
+)) {

 
 

-      // %TypedArray% ( all other argument combinations )
-      throw TypeError();
-    }
+// String.prototype.startsWith
+/* global CreateMethodProperty, IsRegExp, RequireObjectCoercible, ToInteger, ToString */
+// 21.1.3.20. String.prototype.startsWith ( searchString [ , position ] )
+CreateMethodProperty(String.prototype, 'startsWith', function startsWith(searchString /* [ , position ] */) {
+       'use strict';
+       var position = arguments.length > 1 ? arguments[1] : undefined;
+       // 1. Let O be ? RequireObjectCoercible(this value).
+       var O = RequireObjectCoercible(this);
+       // 2. Let S be ? ToString(O).
+       var S = ToString(O);
+       // 3. Let isRegExp be ? IsRegExp(searchString).
+       var isRegExp = IsRegExp(searchString);
+       // 4. If isRegExp is true, throw a TypeError exception.
+       if (isRegExp) {
+               throw new TypeError('First argument to String.prototype.startsWith must not be a regular expression');
+       }
+       // 5. Let searchStr be ? ToString(searchString).
+       var searchStr = ToString(searchString);
+       // 6. Let pos be ? ToInteger(position). (If position is undefined, this step produces the value 0.)
+       var pos = ToInteger(position);
+       // 7. Let len be the length of S.
+       var len = S.length;
+       // 8. Let start be min(max(pos, 0), len).
+       var start = Math.min(Math.max(pos, 0), len);
+       // 9. Let searchLength be the length of searchStr.
+       var searchLength = searchStr.length;
+       // 10. If searchLength+start is greater than len, return false.
+       if (searchLength + start > len) {
+               return false;
+       }
+       // 11. If the sequence of elements of S starting at start of length searchLength is the same as the full element sequence of searchStr, return true.
+       if (S.substr(start).indexOf(searchString) === 0) {
+               return true;
+       }
+       // 12. Otherwise, return false.
+       return false;
+});

 
 

-    // Properties of the %TypedArray Instrinsic Object
+}

 
 

-    // %TypedArray%.from ( source , mapfn=undefined, thisArg=undefined )
-    Object.defineProperty($TypedArray$, 'from', {value: function(iterable) {
-      return new this(iterable);
-    }});
+if (!("Symbol"in this&&0===this.Symbol.length
+)) {

 
 

-    // %TypedArray%.of ( ...items )
-    Object.defineProperty($TypedArray$, 'of', {value: function(/*...items*/) {
-      return new this(arguments);
-    }});
+// Symbol
+// A modification of https://github.com/WebReflection/get-own-property-symbols
+// (C) Andrea Giammarchi - MIT Licensed

 
 

-    // %TypedArray%.prototype
-    var $TypedArrayPrototype$ = {};
-    $TypedArray$.prototype = $TypedArrayPrototype$;
+(function (Object, GOPS, global) {
+
+       var     setDescriptor;
+       var id = 0;
+       var random = '' + Math.random();
+       var prefix = '__\x01symbol:';
+       var prefixLength = prefix.length;
+       var internalSymbol = '__\x01symbol@@' + random;
+       var DP = 'defineProperty';
+       var DPies = 'defineProperties';
+       var GOPN = 'getOwnPropertyNames';
+       var GOPD = 'getOwnPropertyDescriptor';
+       var PIE = 'propertyIsEnumerable';
+       var ObjectProto = Object.prototype;
+       var hOP = ObjectProto.hasOwnProperty;
+       var pIE = ObjectProto[PIE];
+       var toString = ObjectProto.toString;
+       var concat = Array.prototype.concat;
+       var cachedWindowNames = typeof window === 'object' ? Object.getOwnPropertyNames(window) : [];
+       var nGOPN = Object[GOPN];
+       var gOPN = function getOwnPropertyNames (obj) {
+               if (toString.call(obj) === '[object Window]') {
+                       try {
+                               return nGOPN(obj);
+                       } catch (e) {
+                               // IE bug where layout engine calls userland gOPN for cross-domain `window` objects
+                               return concat.call([], cachedWindowNames);
+                       }
+               }
+               return nGOPN(obj);
+       };
+       var gOPD = Object[GOPD];
+       var create = Object.create;
+       var keys = Object.keys;
+       var freeze = Object.freeze || Object;
+       var defineProperty = Object[DP];
+       var $defineProperties = Object[DPies];
+       var descriptor = gOPD(Object, GOPN);
+       var addInternalIfNeeded = function (o, uid, enumerable) {
+               if (!hOP.call(o, internalSymbol)) {
+                       try {
+                               defineProperty(o, internalSymbol, {
+                                       enumerable: false,
+                                       configurable: false,
+                                       writable: false,
+                                       value: {}
+                               });
+                       } catch (e) {
+                               o[internalSymbol] = {};
+                       }
+               }
+               o[internalSymbol]['@@' + uid] = enumerable;
+       };
+       var createWithSymbols = function (proto, descriptors) {
+               var self = create(proto);
+               gOPN(descriptors).forEach(function (key) {
+                       if (propertyIsEnumerable.call(descriptors, key)) {
+                               $defineProperty(self, key, descriptors[key]);
+                       }
+               });
+               return self;
+       };
+       var copyAsNonEnumerable = function (descriptor) {
+               var newDescriptor = create(descriptor);
+               newDescriptor.enumerable = false;
+               return newDescriptor;
+       };
+       var get = function get(){};
+       var onlyNonSymbols = function (name) {
+               return name != internalSymbol &&
+                       !hOP.call(source, name);
+       };
+       var onlySymbols = function (name) {
+               return name != internalSymbol &&
+                       hOP.call(source, name);
+       };
+       var propertyIsEnumerable = function propertyIsEnumerable(key) {
+               var uid = '' + key;
+               return onlySymbols(uid) ? (
+                       hOP.call(this, uid) &&
+                       this[internalSymbol]['@@' + uid]
+               ) : pIE.call(this, key);
+       };
+       var setAndGetSymbol = function (uid) {
+               var descriptor = {
+                       enumerable: false,
+                       configurable: true,
+                       get: get,
+                       set: function (value) {
+                       setDescriptor(this, uid, {
+                               enumerable: false,
+                               configurable: true,
+                               writable: true,
+                               value: value
+                       });
+                       addInternalIfNeeded(this, uid, true);
+                       }
+               };
+               try {
+                       defineProperty(ObjectProto, uid, descriptor);
+               } catch (e) {
+                       ObjectProto[uid] = descriptor.value;
+               }
+               return freeze(source[uid] = defineProperty(
+                       Object(uid),
+                       'constructor',
+                       sourceConstructor
+               ));
+       };
+       var Symbol = function Symbol() {
+               var description = arguments[0];
+               if (this instanceof Symbol) {
+                       throw new TypeError('Symbol is not a constructor');
+               }
+               return setAndGetSymbol(
+                       prefix.concat(description || '', random, ++id)
+               );
+               };
+       var source = create(null);
+       var sourceConstructor = {value: Symbol};
+       var sourceMap = function (uid) {
+               return source[uid];
+               };
+       var $defineProperty = function defineProp(o, key, descriptor) {
+               var uid = '' + key;
+               if (onlySymbols(uid)) {
+                       setDescriptor(o, uid, descriptor.enumerable ?
+                               copyAsNonEnumerable(descriptor) : descriptor);
+                       addInternalIfNeeded(o, uid, !!descriptor.enumerable);
+               } else {
+                       defineProperty(o, key, descriptor);
+               }
+               return o;
+       };

 
 

-    // WebIDL: getter type (unsigned long index);
-    Object.defineProperty($TypedArray$.prototype, '_getter', {value: function(index) {
-      if (arguments.length < 1) throw SyntaxError('Not enough arguments');
+       var onlyInternalSymbols = function (obj) {
+               return function (name) {
+                       return hOP.call(obj, internalSymbol) && hOP.call(obj[internalSymbol], '@@' + name);
+               };
+       };
+       var $getOwnPropertySymbols = function getOwnPropertySymbols(o) {
+               return gOPN(o).filter(o === ObjectProto ? onlyInternalSymbols(o) : onlySymbols).map(sourceMap);
+               }
+       ;

 
 

-      index = ToUint32(index);
-      if (index >= this.length)
-        return undefined;
+       descriptor.value = $defineProperty;
+       defineProperty(Object, DP, descriptor);

 
 

-      var bytes = [], i, o;
-      for (i = 0, o = this.byteOffset + index * this.BYTES_PER_ELEMENT;
-           i < this.BYTES_PER_ELEMENT;
-           i += 1, o += 1) {
-        bytes.push(this.buffer._bytes[o]);
-      }
-      return this._unpack(bytes);
-    }});
+       descriptor.value = $getOwnPropertySymbols;
+       defineProperty(Object, GOPS, descriptor);

 
 

-    // NONSTANDARD: convenience alias for getter: type get(unsigned long index);
-    Object.defineProperty($TypedArray$.prototype, 'get', {value: $TypedArray$.prototype._getter});
+       descriptor.value = function getOwnPropertyNames(o) {
+               return gOPN(o).filter(onlyNonSymbols);
+       };
+       defineProperty(Object, GOPN, descriptor);

 
 

-    // WebIDL: setter void (unsigned long index, type value);
-    Object.defineProperty($TypedArray$.prototype, '_setter', {value: function(index, value) {
-      if (arguments.length < 2) throw SyntaxError('Not enough arguments');
+       descriptor.value = function defineProperties(o, descriptors) {
+               var symbols = $getOwnPropertySymbols(descriptors);
+               if (symbols.length) {
+               keys(descriptors).concat(symbols).forEach(function (uid) {
+                       if (propertyIsEnumerable.call(descriptors, uid)) {
+                       $defineProperty(o, uid, descriptors[uid]);
+                       }
+               });
+               } else {
+               $defineProperties(o, descriptors);
+               }
+               return o;
+       };
+       defineProperty(Object, DPies, descriptor);

 
 

-      index = ToUint32(index);
-      if (index >= this.length)
-        return;
+       descriptor.value = propertyIsEnumerable;
+       defineProperty(ObjectProto, PIE, descriptor);

 
 

-      var bytes = this._pack(value), i, o;
-      for (i = 0, o = this.byteOffset + index * this.BYTES_PER_ELEMENT;
-           i < this.BYTES_PER_ELEMENT;
-           i += 1, o += 1) {
-        this.buffer._bytes[o] = bytes[i];
-      }
-    }});
+       descriptor.value = Symbol;
+       defineProperty(global, 'Symbol', descriptor);

 
 

-    // get %TypedArray%.prototype.buffer
-    // get %TypedArray%.prototype.byteLength
-    // get %TypedArray%.prototype.byteOffset
-    // -- applied directly to the object in the constructor
+       // defining `Symbol.for(key)`
+       descriptor.value = function (key) {
+               var uid = prefix.concat(prefix, key, random);
+               return uid in ObjectProto ? source[uid] : setAndGetSymbol(uid);
+       };
+       defineProperty(Symbol, 'for', descriptor);

 
 

-    // %TypedArray%.prototype.constructor
-    Object.defineProperty($TypedArray$.prototype, 'constructor', {value: $TypedArray$});
+       // defining `Symbol.keyFor(symbol)`
+       descriptor.value = function (symbol) {
+               if (onlyNonSymbols(symbol))
+               throw new TypeError(symbol + ' is not a symbol');
+               return hOP.call(source, symbol) ?
+               symbol.slice(prefixLength * 2, -random.length) :
+               void 0
+               ;
+       };
+       defineProperty(Symbol, 'keyFor', descriptor);

 
 

-    // %TypedArray%.prototype.copyWithin (target, start, end = this.length )
-    Object.defineProperty($TypedArray$.prototype, 'copyWithin', {value: function(target, start) {
-      var end = arguments[2];
+       descriptor.value = function getOwnPropertyDescriptor(o, key) {
+               var descriptor = gOPD(o, key);
+               if (descriptor && onlySymbols(key)) {
+               descriptor.enumerable = propertyIsEnumerable.call(o, key);
+               }
+               return descriptor;
+       };
+       defineProperty(Object, GOPD, descriptor);

 
 

-      var o = ToObject(this);
-      var lenVal = o.length;
-      var len = ToUint32(lenVal);
-      len = max(len, 0);
-      var relativeTarget = ToInt32(target);
-      var to;
-      if (relativeTarget < 0)
-        to = max(len + relativeTarget, 0);
-      else
-        to = min(relativeTarget, len);
-      var relativeStart = ToInt32(start);
-      var from;
-      if (relativeStart < 0)
-        from = max(len + relativeStart, 0);
-      else
-        from = min(relativeStart, len);
-      var relativeEnd;
-      if (end === undefined)
-        relativeEnd = len;
-      else
-        relativeEnd = ToInt32(end);
-      var final;
-      if (relativeEnd < 0)
-        final = max(len + relativeEnd, 0);
-      else
-        final = min(relativeEnd, len);
-      var count = min(final - from, len - to);
-      var direction;
-      if (from < to && to < from + count) {
-        direction = -1;
-        from = from + count - 1;
-        to = to + count - 1;
-      } else {
-        direction = 1;
-      }
-      while (count > 0) {
-        o._setter(to, o._getter(from));
-        from = from + direction;
-        to = to + direction;
-        count = count - 1;
-      }
-      return o;
-    }});
+       descriptor.value = function (proto, descriptors) {
+               return arguments.length === 1 || typeof descriptors === "undefined" ?
+               create(proto) :
+               createWithSymbols(proto, descriptors);
+       };
+       defineProperty(Object, 'create', descriptor);

 
 

-    // %TypedArray%.prototype.entries ( )
-    // -- defined in es6.js to shim browsers w/ native TypedArrays
+       descriptor.value = function () {
+               var str = toString.call(this);
+               return (str === '[object String]' && onlySymbols(this)) ? '[object Symbol]' : str;
+       };
+       defineProperty(ObjectProto, 'toString', descriptor);

 
 

-    // %TypedArray%.prototype.every ( callbackfn, thisArg = undefined )
-    Object.defineProperty($TypedArray$.prototype, 'every', {value: function(callbackfn) {
-      if (this === undefined || this === null) throw TypeError();
-      var t = Object(this);
-      var len = ToUint32(t.length);
-      if (!IsCallable(callbackfn)) throw TypeError();
-      var thisArg = arguments[1];
-      for (var i = 0; i < len; i++) {
-        if (!callbackfn.call(thisArg, t._getter(i), i, t))
-          return false;
-      }
-      return true;
-    }});

 
 

-    // %TypedArray%.prototype.fill (value, start = 0, end = this.length )
-    Object.defineProperty($TypedArray$.prototype, 'fill', {value: function(value) {
-      var start = arguments[1],
-          end = arguments[2];
+       setDescriptor = function (o, key, descriptor) {
+               var protoDescriptor = gOPD(ObjectProto, key);
+               delete ObjectProto[key];
+               defineProperty(o, key, descriptor);
+               if (o !== ObjectProto) {
+                       defineProperty(ObjectProto, key, protoDescriptor);
+               }
+       };

 
 

-      var o = ToObject(this);
-      var lenVal = o.length;
-      var len = ToUint32(lenVal);
-      len = max(len, 0);
-      var relativeStart = ToInt32(start);
-      var k;
-      if (relativeStart < 0)
-        k = max((len + relativeStart), 0);
-      else
-        k = min(relativeStart, len);
-      var relativeEnd;
-      if (end === undefined)
-        relativeEnd = len;
-      else
-        relativeEnd = ToInt32(end);
-      var final;
-      if (relativeEnd < 0)
-        final = max((len + relativeEnd), 0);
-      else
-        final = min(relativeEnd, len);
-      while (k < final) {
-        o._setter(k, value);
-        k += 1;
-      }
-      return o;
-    }});
+}(Object, 'getOwnPropertySymbols', this));

 
 

-    // %TypedArray%.prototype.filter ( callbackfn, thisArg = undefined )
-    Object.defineProperty($TypedArray$.prototype, 'filter', {value: function(callbackfn) {
-      if (this === undefined || this === null) throw TypeError();
-      var t = Object(this);
-      var len = ToUint32(t.length);
-      if (!IsCallable(callbackfn)) throw TypeError();
-      var res = [];
-      var thisp = arguments[1];
-      for (var i = 0; i < len; i++) {
-        var val = t._getter(i); // in case fun mutates this
-        if (callbackfn.call(thisp, val, i, t))
-          res.push(val);
-      }
-      return new this.constructor(res);
-    }});
+}

 
 

-    // %TypedArray%.prototype.find (predicate, thisArg = undefined)
-    Object.defineProperty($TypedArray$.prototype, 'find', {value: function(predicate) {
-      var o = ToObject(this);
-      var lenValue = o.length;
-      var len = ToUint32(lenValue);
-      if (!IsCallable(predicate)) throw TypeError();
-      var t = arguments.length > 1 ? arguments[1] : undefined;
-      var k = 0;
-      while (k < len) {
-        var kValue = o._getter(k);
-        var testResult = predicate.call(t, kValue, k, o);
-        if (Boolean(testResult))
-          return kValue;
-        ++k;
-      }
-      return undefined;
-    }});
+if (!("Symbol"in this&&"hasInstance"in this.Symbol
+)) {

 
 

-    // %TypedArray%.prototype.findIndex ( predicate, thisArg = undefined )
-    Object.defineProperty($TypedArray$.prototype, 'findIndex', {value: function(predicate) {
-      var o = ToObject(this);
-      var lenValue = o.length;
-      var len = ToUint32(lenValue);
-      if (!IsCallable(predicate)) throw TypeError();
-      var t = arguments.length > 1 ? arguments[1] : undefined;
-      var k = 0;
-      while (k < len) {
-        var kValue = o._getter(k);
-        var testResult = predicate.call(t, kValue, k, o);
-        if (Boolean(testResult))
-          return k;
-        ++k;
-      }
-      return -1;
-    }});
+// Symbol.hasInstance
+/* global Symbol */
+Object.defineProperty(Symbol, 'hasInstance', { value: Symbol('hasInstance') });

 
 

-    // %TypedArray%.prototype.forEach ( callbackfn, thisArg = undefined )
-    Object.defineProperty($TypedArray$.prototype, 'forEach', {value: function(callbackfn) {
-      if (this === undefined || this === null) throw TypeError();
-      var t = Object(this);
-      var len = ToUint32(t.length);
-      if (!IsCallable(callbackfn)) throw TypeError();
-      var thisp = arguments[1];
-      for (var i = 0; i < len; i++)
-        callbackfn.call(thisp, t._getter(i), i, t);
-    }});
+}

 
 

-    // %TypedArray%.prototype.indexOf (searchElement, fromIndex = 0 )
-    Object.defineProperty($TypedArray$.prototype, 'indexOf', {value: function(searchElement) {
-      if (this === undefined || this === null) throw TypeError();
-      var t = Object(this);
-      var len = ToUint32(t.length);
-      if (len === 0) return -1;
-      var n = 0;
-      if (arguments.length > 0) {
-        n = Number(arguments[1]);
-        if (n !== n) {
-          n = 0;
-        } else if (n !== 0 && n !== (1 / 0) && n !== -(1 / 0)) {
-          n = (n > 0 || -1) * floor(abs(n));
-        }
-      }
-      if (n >= len) return -1;
-      var k = n >= 0 ? n : max(len - abs(n), 0);
-      for (; k < len; k++) {
-        if (t._getter(k) === searchElement) {
-          return k;
-        }
-      }
-      return -1;
-    }});
+if (!("Symbol"in this&&"isConcatSpreadable"in this.Symbol
+)) {

 
 

-    // %TypedArray%.prototype.join ( separator )
-    Object.defineProperty($TypedArray$.prototype, 'join', {value: function(separator) {
-      if (this === undefined || this === null) throw TypeError();
-      var t = Object(this);
-      var len = ToUint32(t.length);
-      var tmp = Array(len);
-      for (var i = 0; i < len; ++i)
-        tmp[i] = t._getter(i);
-      return tmp.join(separator === undefined ? ',' : separator); // Hack for IE7
-    }});
+// Symbol.isConcatSpreadable
+/* global Symbol */
+Object.defineProperty(Symbol, 'isConcatSpreadable', { value: Symbol('isConcatSpreadable') });

 
 

-    // %TypedArray%.prototype.keys ( )
-    // -- defined in es6.js to shim browsers w/ native TypedArrays
+}

 
 

-    // %TypedArray%.prototype.lastIndexOf ( searchElement, fromIndex = this.length-1 )
-    Object.defineProperty($TypedArray$.prototype, 'lastIndexOf', {value: function(searchElement) {
-      if (this === undefined || this === null) throw TypeError();
-      var t = Object(this);
-      var len = ToUint32(t.length);
-      if (len === 0) return -1;
-      var n = len;
-      if (arguments.length > 1) {
-        n = Number(arguments[1]);
-        if (n !== n) {
-          n = 0;
-        } else if (n !== 0 && n !== (1 / 0) && n !== -(1 / 0)) {
-          n = (n > 0 || -1) * floor(abs(n));
-        }
-      }
-      var k = n >= 0 ? min(n, len - 1) : len - abs(n);
-      for (; k >= 0; k--) {
-        if (t._getter(k) === searchElement)
-          return k;
-      }
-      return -1;
-    }});
+if (!("Symbol"in this&&"iterator"in this.Symbol
+)) {

 
 

-    // get %TypedArray%.prototype.length
-    // -- applied directly to the object in the constructor
+// Symbol.iterator
+/* global Symbol */
+Object.defineProperty(Symbol, 'iterator', { value: Symbol('iterator') });

 
 

-    // %TypedArray%.prototype.map ( callbackfn, thisArg = undefined )
-    Object.defineProperty($TypedArray$.prototype, 'map', {value: function(callbackfn) {
-      if (this === undefined || this === null) throw TypeError();
-      var t = Object(this);
-      var len = ToUint32(t.length);
-      if (!IsCallable(callbackfn)) throw TypeError();
-      var res = []; res.length = len;
-      var thisp = arguments[1];
-      for (var i = 0; i < len; i++)
-        res[i] = callbackfn.call(thisp, t._getter(i), i, t);
-      return new this.constructor(res);
-    }});
+}

 
 

-    // %TypedArray%.prototype.reduce ( callbackfn [, initialValue] )
-    Object.defineProperty($TypedArray$.prototype, 'reduce', {value: function(callbackfn) {
-      if (this === undefined || this === null) throw TypeError();
-      var t = Object(this);
-      var len = ToUint32(t.length);
-      if (!IsCallable(callbackfn)) throw TypeError();
-      // no value to return if no initial value and an empty array
-      if (len === 0 && arguments.length === 1) throw TypeError();
-      var k = 0;
-      var accumulator;
-      if (arguments.length >= 2) {
-        accumulator = arguments[1];
-      } else {
-        accumulator = t._getter(k++);
-      }
-      while (k < len) {
-        accumulator = callbackfn.call(undefined, accumulator, t._getter(k), k, t);
-        k++;
-      }
-      return accumulator;
-    }});
+if (!("Symbol"in this&&"match"in this.Symbol
+)) {

 
 

-    // %TypedArray%.prototype.reduceRight ( callbackfn [, initialValue] )
-    Object.defineProperty($TypedArray$.prototype, 'reduceRight', {value: function(callbackfn) {
-      if (this === undefined || this === null) throw TypeError();
-      var t = Object(this);
-      var len = ToUint32(t.length);
-      if (!IsCallable(callbackfn)) throw TypeError();
-      // no value to return if no initial value, empty array
-      if (len === 0 && arguments.length === 1) throw TypeError();
-      var k = len - 1;
-      var accumulator;
-      if (arguments.length >= 2) {
-        accumulator = arguments[1];
-      } else {
-        accumulator = t._getter(k--);
-      }
-      while (k >= 0) {
-        accumulator = callbackfn.call(undefined, accumulator, t._getter(k), k, t);
-        k--;
-      }
-      return accumulator;
-    }});
+// Symbol.match
+/* global Symbol */
+Object.defineProperty(Symbol, 'match', { value: Symbol('match') });
+
+}
+
+if (!("Symbol"in this&&"replace"in this.Symbol
+)) {
+
+// Symbol.replace
+/* global Symbol */
+Object.defineProperty(Symbol, 'replace', { value: Symbol('replace') });

 
 

-    // %TypedArray%.prototype.reverse ( )
-    Object.defineProperty($TypedArray$.prototype, 'reverse', {value: function() {
-      if (this === undefined || this === null) throw TypeError();
-      var t = Object(this);
-      var len = ToUint32(t.length);
-      var half = floor(len / 2);
-      for (var i = 0, j = len - 1; i < half; ++i, --j) {
-        var tmp = t._getter(i);
-        t._setter(i, t._getter(j));
-        t._setter(j, tmp);
-      }
-      return t;
-    }});
+}

 
 

-    // %TypedArray%.prototype.set(array, offset = 0 )
-    // %TypedArray%.prototype.set(typedArray, offset = 0 )
-    // WebIDL: void set(TypedArray array, optional unsigned long offset);
-    // WebIDL: void set(sequence<type> array, optional unsigned long offset);
-    Object.defineProperty($TypedArray$.prototype, 'set', {value: function(index, value) {
-      if (arguments.length < 1) throw SyntaxError('Not enough arguments');
-      var array, sequence, offset, len,
-          i, s, d,
-          byteOffset, byteLength, tmp;
+if (!("Symbol"in this&&"search"in this.Symbol
+)) {

 
 

-      if (typeof arguments[0] === 'object' && arguments[0].constructor === this.constructor) {
-        // void set(TypedArray array, optional unsigned long offset);
-        array = arguments[0];
-        offset = ToUint32(arguments[1]);
+// Symbol.search
+/* global Symbol */
+Object.defineProperty(Symbol, 'search', { value: Symbol('search') });

 
 

-        if (offset + array.length > this.length) {
-          throw RangeError('Offset plus length of array is out of range');
-        }
+}

 
 

-        byteOffset = this.byteOffset + offset * this.BYTES_PER_ELEMENT;
-        byteLength = array.length * this.BYTES_PER_ELEMENT;
+if (!("Symbol"in this&&"species"in this.Symbol
+)) {

 
 

-        if (array.buffer === this.buffer) {
-          tmp = [];
-          for (i = 0, s = array.byteOffset; i < byteLength; i += 1, s += 1) {
-            tmp[i] = array.buffer._bytes[s];
-          }
-          for (i = 0, d = byteOffset; i < byteLength; i += 1, d += 1) {
-            this.buffer._bytes[d] = tmp[i];
-          }
-        } else {
-          for (i = 0, s = array.byteOffset, d = byteOffset;
-               i < byteLength; i += 1, s += 1, d += 1) {
-            this.buffer._bytes[d] = array.buffer._bytes[s];
-          }
-        }
-      } else if (typeof arguments[0] === 'object' && typeof arguments[0].length !== 'undefined') {
-        // void set(sequence<type> array, optional unsigned long offset);
-        sequence = arguments[0];
-        len = ToUint32(sequence.length);
-        offset = ToUint32(arguments[1]);
+// Symbol.species
+/* global Symbol */
+Object.defineProperty(Symbol, 'species', { value: Symbol('species') });

 
 

-        if (offset + len > this.length) {
-          throw RangeError('Offset plus length of array is out of range');
-        }
+}

 
 

-        for (i = 0; i < len; i += 1) {
-          s = sequence[i];
-          this._setter(offset + i, Number(s));
-        }
-      } else {
-        throw TypeError('Unexpected argument type(s)');
-      }
-    }});
+if (!("Map"in this&&function(){try{var t=new Map([[1,1],[2,2]])
+return 0===Map.length&&2===t.size&&"Symbol"in this&&"iterator"in Symbol&&"function"==typeof t[Symbol.iterator]}catch(n){return!1}}()
+)) {

 
 

-    // %TypedArray%.prototype.slice ( start, end )
-    Object.defineProperty($TypedArray$.prototype, 'slice', {value: function(start, end) {
-      var o = ToObject(this);
-      var lenVal = o.length;
-      var len = ToUint32(lenVal);
-      var relativeStart = ToInt32(start);
-      var k = (relativeStart < 0) ? max(len + relativeStart, 0) : min(relativeStart, len);
-      var relativeEnd = (end === undefined) ? len : ToInt32(end);
-      var final = (relativeEnd < 0) ? max(len + relativeEnd, 0) : min(relativeEnd, len);
-      var count = final - k;
-      var c = o.constructor;
-      var a = new c(count);
-      var n = 0;
-      while (k < final) {
-        var kValue = o._getter(k);
-        a._setter(n, kValue);
-        ++k;
-        ++n;
-      }
-      return a;
-    }});
+// Map
+/* global CreateIterResultObject, CreateMethodProperty, GetIterator, IsCallable, IteratorClose, IteratorStep, IteratorValue, OrdinaryCreateFromConstructor, SameValueZero, Type, Symbol */
+(function (global) {
+       var supportsGetters = (function () {
+               try {
+                       var a = {};
+                       Object.defineProperty(a, 't', {
+                               configurable: true,
+                               enumerable: false,
+                               get: function () {
+                                       return true;
+                               },
+                               set: undefined
+                       });
+                       return !!a.t;
+               } catch (e) {
+                       return false;
+               }
+       }());

 
 

-    // %TypedArray%.prototype.some ( callbackfn, thisArg = undefined )
-    Object.defineProperty($TypedArray$.prototype, 'some', {value: function(callbackfn) {
-      if (this === undefined || this === null) throw TypeError();
-      var t = Object(this);
-      var len = ToUint32(t.length);
-      if (!IsCallable(callbackfn)) throw TypeError();
-      var thisp = arguments[1];
-      for (var i = 0; i < len; i++) {
-        if (callbackfn.call(thisp, t._getter(i), i, t)) {
-          return true;
-        }
-      }
-      return false;
-    }});
+       // Deleted map items mess with iterator pointers, so rather than removing them mark them as deleted. Can't use undefined or null since those both valid keys so use a private symbol.
+       var undefMarker = Symbol('undef');
+       // 23.1.1.1 Map ( [ iterable ] )
+       var Map = function Map(/* iterable */) {
+               // 1. If NewTarget is undefined, throw a TypeError exception.
+               if (!(this instanceof Map)) {
+                       throw new TypeError('Constructor Map requires "new"');
+               }
+               // 2. Let map be ? OrdinaryCreateFromConstructor(NewTarget, "%MapPrototype%", « [[MapData]] »).
+               var map = OrdinaryCreateFromConstructor(this, Map.prototype, {
+                       _keys: [],
+                       _values: [],
+                       _size: 0,
+                       _es6Map: true
+               });

 
 

-    // %TypedArray%.prototype.sort ( comparefn )
-    Object.defineProperty($TypedArray$.prototype, 'sort', {value: function(comparefn) {
-      if (this === undefined || this === null) throw TypeError();
-      var t = Object(this);
-      var len = ToUint32(t.length);
-      var tmp = Array(len);
-      for (var i = 0; i < len; ++i)
-        tmp[i] = t._getter(i);
-      function sortCompare(x, y) {
-        if (x !== x && y !== y) return +0;
-        if (x !== x) return 1;
-        if (y !== y) return -1;
-        if (comparefn !== undefined) {
-          return comparefn(x, y);
-        }
-        if (x < y) return -1;
-        if (x > y) return 1;
-        return +0;
-      }
-      tmp.sort(sortCompare);
-      for (i = 0; i < len; ++i)
-        t._setter(i, tmp[i]);
-      return t;
-    }});
+               // 3. Set map.[[MapData]] to a new empty List.
+               // Polyfill.io - This step was done as part of step two.
+
+               // Some old engines do not support ES5 getters/setters.  Since Map only requires these for the size property, we can fall back to setting the size property statically each time the size of the map changes.
+               if (!supportsGetters) {
+                       Object.defineProperty(map, 'size', {
+                               configurable: true,
+                               enumerable: false,
+                               writable: true,
+                               value: 0
+                       });
+               }
+
+               // 4. If iterable is not present, let iterable be undefined.
+               var iterable = arguments.length > 0 ? arguments[0] : undefined;
+
+               // 5. If iterable is either undefined or null, return map.
+               if (iterable === null || iterable === undefined) {
+                       return map;
+               }
+
+               // 6. Let adder be ? Get(map, "set").
+               var adder = map.set;
+
+               // 7. If IsCallable(adder) is false, throw a TypeError exception.
+               if (!IsCallable(adder)) {
+                       throw new TypeError("Map.prototype.set is not a function");
+               }
+
+               // 8. Let iteratorRecord be ? GetIterator(iterable).
+               try {
+                       var iteratorRecord = GetIterator(iterable);
+                       // 9. Repeat,
+                       while (true) {
+                               // a. Let next be ? IteratorStep(iteratorRecord).
+                               var next = IteratorStep(iteratorRecord);
+                               // b. If next is false, return map.
+                               if (next === false) {
+                                       return map;
+                               }
+                               // c. Let nextItem be ? IteratorValue(next).
+                               var nextItem = IteratorValue(next);
+                               // d. If Type(nextItem) is not Object, then
+                               if (Type(nextItem) !== 'object') {
+                                       // i. Let error be Completion{[[Type]]: throw, [[Value]]: a newly created TypeError object, [[Target]]: empty}.
+                                       try {
+                                               throw new TypeError('Iterator value ' + nextItem + ' is not an entry object');
+                                       } catch (error) {
+                                               // ii. Return ? IteratorClose(iteratorRecord, error).
+                                               return IteratorClose(iteratorRecord, error);
+                                       }
+                               }
+                               try {
+                                       // Polyfill.io - The try catch accounts for steps: f, h, and j.
+
+                                       // e. Let k be Get(nextItem, "0").
+                                       var k = nextItem[0];
+                                       // f. If k is an abrupt completion, return ? IteratorClose(iteratorRecord, k).
+                                       // g. Let v be Get(nextItem, "1").
+                                       var v = nextItem[1];
+                                       // h. If v is an abrupt completion, return ? IteratorClose(iteratorRecord, v).
+                                       // i. Let status be Call(adder, map, « k.[[Value]], v.[[Value]] »).
+                                       adder.call(map, k, v);
+                               } catch (e) {
+                                       // j. If status is an abrupt completion, return ? IteratorClose(iteratorRecord, status).
+                                       return IteratorClose(iteratorRecord, e);
+                               }
+                       }
+               } catch (e) {
+                       // Polyfill.io - For user agents which do not have iteration methods on argument objects or arrays, we can special case those.
+                       if (Array.isArray(iterable) ||
+                               Object.prototype.toString.call(iterable) === '[object Arguments]' ||
+                               // IE 7 & IE 8 return '[object Object]' for the arguments object, we can detect by checking for the existence of the callee property
+                               (!!iterable.callee)) {
+                               var index;
+                               var length = iterable.length;
+                               for (index = 0; index < length; index++) {
+                                       adder.call(map, iterable[index][0], iterable[index][1]);
+                               }
+                       }
+               }
+               return map;
+       };
+
+       // 23.1.2.1. Map.prototype
+       // The initial value of Map.prototype is the intrinsic object %MapPrototype%.
+       // This property has the attributes { [[Writable]]: false, [[Enumerable]]: false, [[Configurable]]: false }.
+       Object.defineProperty(Map, 'prototype', {
+               configurable: false,
+               enumerable: false,
+               writable: false,
+               value: {}
+       });

 
 

-    // %TypedArray%.prototype.subarray(begin = 0, end = this.length )
-    // WebIDL: TypedArray subarray(long begin, optional long end);
-    Object.defineProperty($TypedArray$.prototype, 'subarray', {value: function(start, end) {
-      function clamp(v, min, max) { return v < min ? min : v > max ? max : v; }
+       // 23.1.2.2 get Map [ @@species ]
+       if (supportsGetters) {
+               Object.defineProperty(Map, Symbol.species, {
+                       configurable: true,
+                       enumerable: false,
+                       get: function () {
+                               // 1. Return the this value.
+                               return this;
+                       },
+                       set: undefined
+               });
+       } else {
+               CreateMethodProperty(Map, Symbol.species, Map);
+       }

 
 

-      start = ToInt32(start);
-      end = ToInt32(end);
+       // 23.1.3.1 Map.prototype.clear ( )
+       CreateMethodProperty(Map.prototype, 'clear', function clear() {
+                       // 1. Let M be the this value.
+                       var M = this;
+                       // 2. If Type(M) is not Object, throw a TypeError exception.
+                       if (Type(M) !== 'object') {
+                               throw new TypeError('Method Map.prototype.clear called on incompatible receiver ' + Object.prototype.toString.call(M));
+                       }
+                       // 3. If M does not have a [[MapData]] internal slot, throw a TypeError exception.
+                       if (M._es6Map !== true) {
+                               throw new TypeError('Method Map.prototype.clear called on incompatible receiver ' + Object.prototype.toString.call(M));
+                       }
+                       // 4. Let entries be the List that is M.[[MapData]].
+                       var entries = M._keys;
+                       // 5. For each Record {[[Key]], [[Value]]} p that is an element of entries, do
+                       for (var i = 0; i < entries.length; i++) {
+                               // 5.a. Set p.[[Key]] to empty.
+                               M._keys[i] = undefMarker;
+                               // 5.b. Set p.[[Value]] to empty.
+                               M._values[i] = undefMarker;
+                       }
+                       this._size = 0;
+                       if (!supportsGetters) {
+                               this.size = this._size;
+                       }
+                       // 6. Return undefined.
+                       return undefined;
+               }
+       );

 
 

-      if (arguments.length < 1) { start = 0; }
-      if (arguments.length < 2) { end = this.length; }
+       // 23.1.3.2. Map.prototype.constructor
+       CreateMethodProperty(Map.prototype, 'constructor', Map);

 
 

-      if (start < 0) { start = this.length + start; }
-      if (end < 0) { end = this.length + end; }
+       // 23.1.3.3. Map.prototype.delete ( key )
+       CreateMethodProperty(Map.prototype, 'delete', function (key) {
+                       // 1. Let M be the this value.
+                       var M = this;
+                       // 2. If Type(M) is not Object, throw a TypeError exception.
+                       if (Type(M) !== 'object') {
+                               throw new TypeError('Method Map.prototype.clear called on incompatible receiver ' + Object.prototype.toString.call(M));
+                       }
+                       // 3. If M does not have a [[MapData]] internal slot, throw a TypeError exception.
+                       if (M._es6Map !== true) {
+                               throw new TypeError('Method Map.prototype.clear called on incompatible receiver ' + Object.prototype.toString.call(M));
+                       }
+                       // 4. Let entries be the List that is M.[[MapData]].
+                       var entries = M._keys;
+                       // 5. For each Record {[[Key]], [[Value]]} p that is an element of entries, do
+                       for (var i = 0; i < entries.length; i++) {
+                               // a. If p.[[Key]] is not empty and SameValueZero(p.[[Key]], key) is true, then
+                               if (M._keys[i] !== undefMarker && SameValueZero(M._keys[i], key)) {
+                                       // i. Set p.[[Key]] to empty.
+                                       this._keys[i] = undefMarker;
+                                       // ii. Set p.[[Value]] to empty.
+                                       this._values[i] = undefMarker;
+                                       this._size = --this._size;
+                                       if (!supportsGetters) {
+                                               this.size = this._size;
+                                       }
+                                       // iii. Return true.
+                                       return true;
+                               }
+                       }
+                       // 6. Return false.
+                       return false;
+               }
+       );

 
 

-      start = clamp(start, 0, this.length);
-      end = clamp(end, 0, this.length);
+       // 23.1.3.4. Map.prototype.entries ( )
+       CreateMethodProperty(Map.prototype, 'entries', function entries () {
+                       // 1. Let M be the this value.
+                       var M = this;
+                       // 2. Return ? CreateMapIterator(M, "key+value").
+                       return CreateMapIterator(M, 'key+value');
+               }
+       );

 
 

-      var len = end - start;
-      if (len < 0) {
-        len = 0;
-      }
+       // 23.1.3.5. Map.prototype.forEach ( callbackfn [ , thisArg ] )
+       CreateMethodProperty(Map.prototype, 'forEach', function (callbackFn) {
+                       // 1. Let M be the this value.
+                       var M = this;
+                       // 2. If Type(M) is not Object, throw a TypeError exception.
+                       if (Type(M) !== 'object') {
+                               throw new TypeError('Method Map.prototype.forEach called on incompatible receiver ' + Object.prototype.toString.call(M));
+                       }
+                       // 3. If M does not have a [[MapData]] internal slot, throw a TypeError exception.
+                       if (M._es6Map !== true) {
+                               throw new TypeError('Method Map.prototype.forEach called on incompatible receiver ' + Object.prototype.toString.call(M));
+                       }
+                       // 4. If IsCallable(callbackfn) is false, throw a TypeError exception.
+                       if (!IsCallable(callbackFn)) {
+                               throw new TypeError(Object.prototype.toString.call(callbackFn) + ' is not a function.');
+                       }
+                       // 5. If thisArg is present, let T be thisArg; else let T be undefined.
+                       if (arguments[1]) {
+                               var T = arguments[1];
+                       }
+                       // 6. Let entries be the List that is M.[[MapData]].
+                       var entries = M._keys;
+                       // 7. For each Record {[[Key]], [[Value]]} e that is an element of entries, in original key insertion order, do
+                       for (var i = 0; i < entries.length; i++) {
+                               // a. If e.[[Key]] is not empty, then
+                               if (M._keys[i] !== undefMarker && M._values[i] !== undefMarker ) {
+                                       // i. Perform ? Call(callbackfn, T, « e.[[Value]], e.[[Key]], M »).
+                                       callbackFn.call(T, M._values[i], M._keys[i], M);
+                               }
+                       }
+                       // 8. Return undefined.
+                       return undefined;
+               }
+       );

 
 

-      return new this.constructor(
-        this.buffer, this.byteOffset + start * this.BYTES_PER_ELEMENT, len);
-    }});
+       // 23.1.3.6. Map.prototype.get ( key )
+       CreateMethodProperty(Map.prototype, 'get', function get(key) {
+                       // 1. Let M be the this value.
+                       var M = this;
+                       // 2. If Type(M) is not Object, throw a TypeError exception.
+                       if (Type(M) !== 'object') {
+                               throw new TypeError('Method Map.prototype.get called on incompatible receiver ' + Object.prototype.toString.call(M));
+                       }
+                       // 3. If M does not have a [[MapData]] internal slot, throw a TypeError exception.
+                       if (M._es6Map !== true) {
+                               throw new TypeError('Method Map.prototype.get called on incompatible receiver ' + Object.prototype.toString.call(M));
+                       }
+                       // 4. Let entries be the List that is M.[[MapData]].
+                       var entries = M._keys;
+                       // 5. For each Record {[[Key]], [[Value]]} p that is an element of entries, do
+                       for (var i = 0; i < entries.length; i++) {
+                               // a. If p.[[Key]] is not empty and SameValueZero(p.[[Key]], key) is true, return p.[[Value]].
+                               if (M._keys[i] !== undefMarker && SameValueZero(M._keys[i], key)) {
+                                       return M._values[i];
+                               }
+                       }
+                       // 6. Return undefined.
+                       return undefined;
+               });

 
 

-    // %TypedArray%.prototype.toLocaleString ( )
-    // %TypedArray%.prototype.toString ( )
-    // %TypedArray%.prototype.values ( )
-    // %TypedArray%.prototype [ @@iterator ] ( )
-    // get %TypedArray%.prototype [ @@toStringTag ]
-    // -- defined in es6.js to shim browsers w/ native TypedArrays
+       // 23.1.3.7. Map.prototype.has ( key )
+       CreateMethodProperty(Map.prototype, 'has', function has (key) {
+                       // 1. Let M be the this value.
+                       var M = this;
+                       // 2. If Type(M) is not Object, throw a TypeError exception.
+                       if (typeof M !== 'object') {
+                               throw new TypeError('Method Map.prototype.has called on incompatible receiver ' + Object.prototype.toString.call(M));
+                       }
+                       // 3. If M does not have a [[MapData]] internal slot, throw a TypeError exception.
+                       if (M._es6Map !== true) {
+                               throw new TypeError('Method Map.prototype.has called on incompatible receiver ' + Object.prototype.toString.call(M));
+                       }
+                       // 4. Let entries be the List that is M.[[MapData]].
+                       var entries = M._keys;
+                       // 5. For each Record {[[Key]], [[Value]]} p that is an element of entries, do
+                       for (var i = 0; i < entries.length; i++) {
+                               // a. If p.[[Key]] is not empty and SameValueZero(p.[[Key]], key) is true, return true.
+                               if (M._keys[i] !== undefMarker && SameValueZero(M._keys[i], key)) {
+                                       return true;
+                               }
+                       }
+                       // 6. Return false.
+                       return false;
+               });

 
 

-    function makeTypedArray(elementSize, pack, unpack) {
-      // Each TypedArray type requires a distinct constructor instance with
-      // identical logic, which this produces.
-      var TypedArray = function() {
-        Object.defineProperty(this, 'constructor', {value: TypedArray});
-        $TypedArray$.apply(this, arguments);
-        makeArrayAccessors(this);
-      };
-      if ('__proto__' in TypedArray) {
-        TypedArray.__proto__ = $TypedArray$;
-      } else {
-        TypedArray.from = $TypedArray$.from;
-        TypedArray.of = $TypedArray$.of;
-      }
+       // 23.1.3.8. Map.prototype.keys ( )
+       CreateMethodProperty(Map.prototype, 'keys', function keys () {
+                       // 1. Let M be the this value.
+                       var M = this;
+                       // 2. Return ? CreateMapIterator(M, "key").
+                       return CreateMapIterator(M, "key");
+               });
+
+       // 23.1.3.9. Map.prototype.set ( key, value )
+       CreateMethodProperty(Map.prototype, 'set', function set(key, value) {
+                       // 1. Let M be the this value.
+                       var M = this;
+                       // 2. If Type(M) is not Object, throw a TypeError exception.
+                       if (Type(M) !== 'object') {
+                               throw new TypeError('Method Map.prototype.set called on incompatible receiver ' + Object.prototype.toString.call(M));
+                       }
+                       // 3. If M does not have a [[MapData]] internal slot, throw a TypeError exception.
+                       if (M._es6Map !== true) {
+                               throw new TypeError('Method Map.prototype.set called on incompatible receiver ' + Object.prototype.toString.call(M));
+                       }
+                       // 4. Let entries be the List that is M.[[MapData]].
+                       var entries = M._keys;
+                       // 5. For each Record {[[Key]], [[Value]]} p that is an element of entries, do
+                       for (var i = 0; i < entries.length; i++) {
+                               // a. If p.[[Key]] is not empty and SameValueZero(p.[[Key]], key) is true, then
+                               if (M._keys[i] !== undefMarker && SameValueZero(M._keys[i], key)) {
+                                       // i. Set p.[[Value]] to value.
+                                       M._values[i] = value;
+                                       // Return M.
+                                       return M;
+                               }
+                       }
+                       // 6. If key is -0, let key be +0.
+                       if (key === -0) {
+                               key = 0;
+                       }
+                       // 7. Let p be the Record {[[Key]]: key, [[Value]]: value}.
+                       var p = {};
+                       p['[[Key]]'] = key;
+                       p['[[Value]]'] = value;
+                       // 8. Append p as the last element of entries.
+                       M._keys.push(p['[[Key]]']);
+                       M._values.push(p['[[Value]]']);
+                       ++M._size;
+                       if (!supportsGetters) {
+                               M.size = M._size;
+                       }
+                       // 9. Return M.
+                       return M;
+               });

 
 

-      TypedArray.BYTES_PER_ELEMENT = elementSize;
+       // 23.1.3.10. get Map.prototype.size
+       if (supportsGetters) {
+               Object.defineProperty(Map.prototype, 'size', {
+                       configurable: true,
+                       enumerable: false,
+                       get: function () {
+                               // 1. Let M be the this value.
+                               var M = this;
+                               // 2. If Type(M) is not Object, throw a TypeError exception.
+                               if (Type(M) !== 'object') {
+                                       throw new TypeError('Method Map.prototype.size called on incompatible receiver ' + Object.prototype.toString.call(M));
+                               }
+                               // 3. If M does not have a [[MapData]] internal slot, throw a TypeError exception.
+                               if (M._es6Map !== true) {
+                                       throw new TypeError('Method Map.prototype.size called on incompatible receiver ' + Object.prototype.toString.call(M));
+                               }
+                               // 4. Let entries be the List that is M.[[MapData]].
+                               var entries = M._keys;
+                               // 5. Let count be 0.
+                               var count = 0;
+                               // 6. For each Record {[[Key]], [[Value]]} p that is an element of entries, do
+                               for (var i = 0; i < entries.length; i++) {
+                                       // a. If p.[[Key]] is not empty, set count to count+1.
+                                       if (M._keys[i] !== undefMarker) {
+                                               count = count + 1;
+                                       }
+                               }
+                               // 7. Return count.
+                               return count;
+                       },
+                       set: undefined
+               });
+       }

 
 

-      var TypedArrayPrototype = function() {};
-      TypedArrayPrototype.prototype = $TypedArrayPrototype$;
+       // 23.1.3.11. Map.prototype.values ( )
+       CreateMethodProperty(Map.prototype, 'values', function values () {
+                       // 1. Let M be the this value.
+                       var M = this;
+                       // 2. Return ? CreateMapIterator(M, "value").
+                       return CreateMapIterator(M, 'value');
+               }
+       );

 
 

-      TypedArray.prototype = new TypedArrayPrototype();
+       // 23.1.3.12. Map.prototype [ @@iterator ] ( )
+       // The initial value of the @@iterator property is the same function object as the initial value of the entries property.
+       CreateMethodProperty(Map.prototype, Symbol.iterator, Map.prototype.entries);

 
 

-      Object.defineProperty(TypedArray.prototype, 'BYTES_PER_ELEMENT', {value: elementSize});
-      Object.defineProperty(TypedArray.prototype, '_pack', {value: pack});
-      Object.defineProperty(TypedArray.prototype, '_unpack', {value: unpack});
+       // 23.1.3.13. Map.prototype [ @@toStringTag ]
+       // The initial value of the @@toStringTag property is the String value "Map".
+       // This property has the attributes { [[Writable]]: false, [[Enumerable]]: false, [[Configurable]]: true }.

 
 

-      return TypedArray;
-    }
+       // Polyfill.io - Safari 8 implements Map.name but as a non-configurable property, which means it would throw an error if we try and configure it here.
+       if (!('name' in Map)) {
+               // 19.2.4.2 name
+               Object.defineProperty(Map, 'name', {
+                       configurable: true,
+                       enumerable: false,
+                       writable: false,
+                       value: 'Map'
+               });
+       }

 
 

-    var Int8Array = makeTypedArray(1, packI8, unpackI8);
-    var Uint8Array = makeTypedArray(1, packU8, unpackU8);
-    var Uint8ClampedArray = makeTypedArray(1, packU8Clamped, unpackU8);
-    var Int16Array = makeTypedArray(2, packI16, unpackI16);
-    var Uint16Array = makeTypedArray(2, packU16, unpackU16);
-    var Int32Array = makeTypedArray(4, packI32, unpackI32);
-    var Uint32Array = makeTypedArray(4, packU32, unpackU32);
-    var Float32Array = makeTypedArray(4, packF32, unpackF32);
-    var Float64Array = makeTypedArray(8, packF64, unpackF64);
+       // 23.1.5.1. CreateMapIterator ( map, kind )
+       function CreateMapIterator(map, kind) {
+               // 1. If Type(map) is not Object, throw a TypeError exception.
+               if (Type(map) !== 'object') {
+                       throw new TypeError('createMapIterator called on incompatible receiver ' + Object.prototype.toString.call(map));
+               }
+               // 2. If map does not have a [[MapData]] internal slot, throw a TypeError exception.
+               if (map._es6Map !== true) {
+                       throw new TypeError('createMapIterator called on incompatible receiver ' + Object.prototype.toString.call(map));
+               }
+               // 3. Let iterator be ObjectCreate(%MapIteratorPrototype%, « [[Map]], [[MapNextIndex]], [[MapIterationKind]] »).
+               var iterator = Object.create(MapIteratorPrototype);
+               // 4. Set iterator.[[Map]] to map.
+               Object.defineProperty(iterator, '[[Map]]', {
+                       configurable: true,
+                       enumerable: false,
+                       writable: true,
+                       value: map
+               });
+               // 5. Set iterator.[[MapNextIndex]] to 0.
+               Object.defineProperty(iterator, '[[MapNextIndex]]', {
+                       configurable: true,
+                       enumerable: false,
+                       writable: true,
+                       value: 0
+               });
+               // 6. Set iterator.[[MapIterationKind]] to kind.
+               Object.defineProperty(iterator, '[[MapIterationKind]]', {
+                       configurable: true,
+                       enumerable: false,
+                       writable: true,
+                       value: kind
+               });
+               // 7. Return iterator.
+               return iterator;
+       }

 
 

-    global.Int8Array = global.Int8Array || Int8Array;
-    global.Uint8Array = global.Uint8Array || Uint8Array;
-    global.Uint8ClampedArray = global.Uint8ClampedArray || Uint8ClampedArray;
-    global.Int16Array = global.Int16Array || Int16Array;
-    global.Uint16Array = global.Uint16Array || Uint16Array;
-    global.Int32Array = global.Int32Array || Int32Array;
-    global.Uint32Array = global.Uint32Array || Uint32Array;
-    global.Float32Array = global.Float32Array || Float32Array;
-    global.Float64Array = global.Float64Array || Float64Array;
-  }());
+       // 23.1.5.2. The %MapIteratorPrototype% Object
+       var MapIteratorPrototype = {};
+       // Polyfill.io - We use this as a quick way to check if an object is a Map Iterator instance.
+       Object.defineProperty(MapIteratorPrototype, 'isMapIterator', {
+               configurable: false,
+               enumerable: false,
+               writable: false,
+               value: true
+       });

 
 

-  //
-  // 6 The DataView View Type
-  //
+       // 23.1.5.2.1. %MapIteratorPrototype%.next ( )
+       CreateMethodProperty(MapIteratorPrototype, 'next', function next() {
+                       // 1. Let O be the this value.
+                       var O = this;
+                       // 2. If Type(O) is not Object, throw a TypeError exception.
+                       if (Type(O) !== 'object') {
+                               throw new TypeError('Method %MapIteratorPrototype%.next called on incompatible receiver ' + Object.prototype.toString.call(O));
+                       }
+                       // 3. If O does not have all of the internal slots of a Map Iterator Instance (23.1.5.3), throw a TypeError exception.
+                       if (!O.isMapIterator) {
+                               throw new TypeError('Method %MapIteratorPrototype%.next called on incompatible receiver ' + Object.prototype.toString.call(O));
+                       }
+                       // 4. Let m be O.[[Map]].
+                       var m = O['[[Map]]'];
+                       // 5. Let index be O.[[MapNextIndex]].
+                       var index = O['[[MapNextIndex]]'];
+                       // 6. Let itemKind be O.[[MapIterationKind]].
+                       var itemKind = O['[[MapIterationKind]]'];
+                       // 7. If m is undefined, return CreateIterResultObject(undefined, true).
+                       if (m === undefined) {
+                               return CreateIterResultObject(undefined, true);
+                       }
+                       // 8. Assert: m has a [[MapData]] internal slot.
+                       if (!m._es6Map) {
+                               throw new Error(Object.prototype.toString.call(m) + ' has a [[MapData]] internal slot.');
+                       }
+                       // 9. Let entries be the List that is m.[[MapData]].
+                       var entries = m._keys;
+                       // 10. Let numEntries be the number of elements of entries.
+                       var numEntries = entries.length;
+                       // 11. NOTE: numEntries must be redetermined each time this method is evaluated.
+                       // 12. Repeat, while index is less than numEntries,
+                       while (index < numEntries) {
+                               // a. Let e be the Record {[[Key]], [[Value]]} that is the value of entries[index].
+                               var e = Object.create(null);
+                               e['[[Key]]'] = m._keys[index];
+                               e['[[Value]]'] = m._values[index];
+                               // b. Set index to index+1.
+                               index = index + 1;
+                               // c. Set O.[[MapNextIndex]] to index.
+                               O['[[MapNextIndex]]'] = index;
+                               // d. If e.[[Key]] is not empty, then
+                               if (e['[[Key]]'] !== undefMarker) {
+                                       // i. If itemKind is "key", let result be e.[[Key]].
+                                       if (itemKind === 'key') {
+                                               var result = e['[[Key]]'];
+                                               // ii. Else if itemKind is "value", let result be e.[[Value]].
+                                       } else if (itemKind === 'value') {
+                                               result = e['[[Value]]'];
+                                               // iii. Else,
+                                       } else {
+                                               // 1. Assert: itemKind is "key+value".
+                                               if (itemKind !== 'key+value') {
+                                                       throw new Error();
+                                               }
+                                               // 2. Let result be CreateArrayFromList(« e.[[Key]], e.[[Value]] »).
+                                               result = [
+                                                       e['[[Key]]'],
+                                                       e['[[Value]]']
+                                               ];
+                                       }
+                                       // iv. Return CreateIterResultObject(result, false).
+                                       return CreateIterResultObject(result, false);
+                               }
+                       }
+                       // 13. Set O.[[Map]] to undefined.
+                       O['[[Map]]'] = undefined;
+                       // 14. Return CreateIterResultObject(undefined, true).
+                       return CreateIterResultObject(undefined, true);
+               }
+       );

 
 

-  (function() {
-    function r(array, index) {
-      return IsCallable(array.get) ? array.get(index) : array[index];
-    }
+       // 23.1.5.2.2 %MapIteratorPrototype% [ @@toStringTag ]
+       // The initial value of the @@toStringTag property is the String value "Map Iterator".
+       // This property has the attributes { [[Writable]]: false, [[Enumerable]]: false, [[Configurable]]: true }.

 
 

-    var IS_BIG_ENDIAN = (function() {
-      var u16array = new Uint16Array([0x1234]),
-          u8array = new Uint8Array(u16array.buffer);
-      return r(u8array, 0) === 0x12;
-    }());
+       CreateMethodProperty(MapIteratorPrototype, Symbol.iterator, function iterator() {
+                       return this;
+               }
+       );

 
 

-    // DataView(buffer, byteOffset=0, byteLength=undefined)
-    // WebIDL: Constructor(ArrayBuffer buffer,
-    //                     optional unsigned long byteOffset,
-    //                     optional unsigned long byteLength)
-    function DataView(buffer, byteOffset, byteLength) {
-      if (!(buffer instanceof ArrayBuffer || Class(buffer) === 'ArrayBuffer')) throw TypeError();
+       // Export the object
+       try {
+               CreateMethodProperty(global, 'Map', Map);
+       } catch (e) {
+               // IE8 throws an error here if we set enumerable to false.
+               // More info on table 2: https://msdn.microsoft.com/en-us/library/dd229916(v=vs.85).aspx
+               global['Map'] = Map;
+       }
+}(this));

 
 

-      byteOffset = ToUint32(byteOffset);
-      if (byteOffset > buffer.byteLength)
-        throw RangeError('byteOffset out of range');
+}

 
 

-      if (byteLength === undefined)
-        byteLength = buffer.byteLength - byteOffset;
-      else
-        byteLength = ToUint32(byteLength);
+if (!("Set"in this&&function(){try{var t=new Set([1,2])
+return 0===Set.length&&2===t.size&&"Symbol"in this&&"iterator"in Symbol&&"function"==typeof t[Symbol.iterator]}catch(e){return!1}}()
+)) {
+
+// Set
+/* global CreateIterResultObject, CreateMethodProperty, GetIterator, IsCallable, IteratorClose, IteratorStep, IteratorValue, OrdinaryCreateFromConstructor, SameValueZero, Symbol */
+(function (global) {
+       var supportsGetters = (function () {
+               try {
+                       var a = {};
+                       Object.defineProperty(a, 't', {
+                               configurable: true,
+                               enumerable: false,
+                               get: function () {
+                                       return true;
+                               },
+                               set: undefined
+                       });
+                       return !!a.t;
+               } catch (e) {
+                       return false;
+               }
+       }());

 
 

-      if ((byteOffset + byteLength) > buffer.byteLength)
-        throw RangeError('byteOffset and length reference an area beyond the end of the buffer');
+       // Deleted set items mess with iterator pointers, so rather than removing them mark them as deleted. Can't use undefined or null since those both valid keys so use a private symbol.
+       var undefMarker = Symbol('undef');
+       // 23.2.1.1. Set ( [ iterable ] )
+       var Set = function Set(/* iterable */) {
+               // 1. If NewTarget is undefined, throw a TypeError exception.
+               if (!(this instanceof Set)) {
+                       throw new TypeError('Constructor Set requires "new"');
+               }
+               // 2. Let set be ? OrdinaryCreateFromConstructor(NewTarget, "%SetPrototype%", « [[SetData]] »).
+               var set = OrdinaryCreateFromConstructor(this, Set.prototype, {
+                       _values: [],
+                       _size: 0,
+                       _es6Set: true
+               });

 
 

-      Object.defineProperty(this, 'buffer', {value: buffer});
-      Object.defineProperty(this, 'byteLength', {value: byteLength});
-      Object.defineProperty(this, 'byteOffset', {value: byteOffset});
-    };
+               // 3. Set set.[[SetData]] to a new empty List.
+               // Polyfill.io - This step was done as part of step two.

 
 

-    // get DataView.prototype.buffer
-    // get DataView.prototype.byteLength
-    // get DataView.prototype.byteOffset
-    // -- applied directly to instances by the constructor
+               // Some old engines do not support ES5 getters/setters.  Since Set only requires these for the size property, we can fall back to setting the size property statically each time the size of the set changes.
+               if (!supportsGetters) {
+                       Object.defineProperty(set, 'size', {
+                               configurable: true,
+                               enumerable: false,
+                               writable: true,
+                               value: 0
+                       });
+               }

 
 

-    function makeGetter(arrayType) {
-      return function GetViewValue(byteOffset, littleEndian) {
-        byteOffset = ToUint32(byteOffset);
+               // 4. If iterable is not present, let iterable be undefined.
+               var iterable = arguments.length > 0 ? arguments[0] : undefined;

 
 

-        if (byteOffset + arrayType.BYTES_PER_ELEMENT > this.byteLength)
-          throw RangeError('Array index out of range');
+               // 5. If iterable is either undefined or null, return set.
+               if (iterable === null || iterable === undefined) {
+                       return set;
+               }

 
 

-        byteOffset += this.byteOffset;
+               // 6. Let adder be ? Get(set, "add").
+               var adder = set.add;
+               // 7. If IsCallable(adder) is false, throw a TypeError exception.
+               if (!IsCallable(adder)) {
+                       throw new TypeError("Set.prototype.add is not a function");
+               }

 
 

-        var uint8Array = new Uint8Array(this.buffer, byteOffset, arrayType.BYTES_PER_ELEMENT),
-            bytes = [];
-        for (var i = 0; i < arrayType.BYTES_PER_ELEMENT; i += 1)
-          bytes.push(r(uint8Array, i));
+               try {
+                       // 8. Let iteratorRecord be ? GetIterator(iterable).
+                       var iteratorRecord = GetIterator(iterable);
+                       // 9. Repeat,
+                       while (true) {
+                               // a. Let next be ? IteratorStep(iteratorRecord).
+                               var next = IteratorStep(iteratorRecord);
+                               // b. If next is false, return set.
+                               if (next === false) {
+                                       return set;
+                               }
+                               // c. Let nextValue be ? IteratorValue(next).
+                               var nextValue = IteratorValue(next);
+                               // d. Let status be Call(adder, set, « nextValue.[[Value]] »).
+                               try {
+                                       adder.call(set, nextValue);
+                               } catch (e) {
+                                       // e. If status is an abrupt completion, return ? IteratorClose(iteratorRecord, status).
+                                       return IteratorClose(iteratorRecord, e);
+                               }
+                       }
+               } catch (e) {
+                       // Polyfill.io - For user agents which do not have iteration methods on argument objects or arrays, we can special case those.
+                       if (Array.isArray(iterable) ||
+                               Object.prototype.toString.call(iterable) === '[object Arguments]' ||
+                               // IE 7 & IE 8 return '[object Object]' for the arguments object, we can detect by checking for the existence of the callee property
+                               (!!iterable.callee)) {
+                               var index;
+                               var length = iterable.length;
+                               for (index = 0; index < length; index++) {
+                                       adder.call(set, iterable[index]);
+                               }
+                       } else {
+                               throw (e);
+                       }
+               }
+               return set;
+       };

 
 

-        if (Boolean(littleEndian) === Boolean(IS_BIG_ENDIAN))
-          bytes.reverse();
+       // 23.2.2.1. Set.prototype
+       // The initial value of Set.prototype is the intrinsic %SetPrototype% object.
+       // This property has the attributes { [[Writable]]: false, [[Enumerable]]: false, [[Configurable]]: false }.
+       Object.defineProperty(Set, 'prototype', {
+               configurable: false,
+               enumerable: false,
+               writable: false,
+               value: {}
+       });

 
 

-        return r(new arrayType(new Uint8Array(bytes).buffer), 0);
-      };
-    }
+       // 23.2.2.2 get Set [ @@species ]
+       if (supportsGetters) {
+               Object.defineProperty(Set, Symbol.species, {
+                       configurable: true,
+                       enumerable: false,
+                       get: function () {
+                               // 1. Return the this value.
+                               return this;
+                       },
+                       set: undefined
+               });
+       } else {
+               CreateMethodProperty(Set, Symbol.species, Set);
+       }

 
 

-    Object.defineProperty(DataView.prototype, 'getUint8', {value: makeGetter(Uint8Array)});
-    Object.defineProperty(DataView.prototype, 'getInt8', {value: makeGetter(Int8Array)});
-    Object.defineProperty(DataView.prototype, 'getUint16', {value: makeGetter(Uint16Array)});
-    Object.defineProperty(DataView.prototype, 'getInt16', {value: makeGetter(Int16Array)});
-    Object.defineProperty(DataView.prototype, 'getUint32', {value: makeGetter(Uint32Array)});
-    Object.defineProperty(DataView.prototype, 'getInt32', {value: makeGetter(Int32Array)});
-    Object.defineProperty(DataView.prototype, 'getFloat32', {value: makeGetter(Float32Array)});
-    Object.defineProperty(DataView.prototype, 'getFloat64', {value: makeGetter(Float64Array)});
+       // 23.2.3.1. Set.prototype.add ( value )
+       CreateMethodProperty(Set.prototype, 'add', function add(value) {
+                       // 1. Let S be the this value.
+                       var S = this;
+                       // 2. If Type(S) is not Object, throw a TypeError exception.
+                       if (typeof S !== 'object') {
+                               throw new TypeError('Method Set.prototype.add called on incompatible receiver ' + Object.prototype.toString.call(S));
+                       }
+                       // 3. If S does not have a [[SetData]] internal slot, throw a TypeError exception.
+                       if (S._es6Set !== true) {
+                               throw new TypeError('Method Set.prototype.add called on incompatible receiver ' + Object.prototype.toString.call(S));
+                       }
+                       // 4. Let entries be the List that is S.[[SetData]].
+                       var entries = S._values;
+                       // 5. For each e that is an element of entries, do
+                       for (var i = 0; i < entries.length; i++) {
+                               var e = entries[i];
+                               // a. If e is not empty and SameValueZero(e, value) is true, then
+                               if (e !== undefMarker && SameValueZero(e, value)) {
+                                       // i. Return S.
+                                       return S;
+                               }
+                       }
+                       // 6. If value is -0, let value be +0.
+                       if (1/value === -Infinity) {
+                               value = 0;
+                       }
+                       // 7. Append value as the last element of entries.
+                       S._values.push(value);

 
 

-    function makeSetter(arrayType) {
-      return function SetViewValue(byteOffset, value, littleEndian) {
-        byteOffset = ToUint32(byteOffset);
-        if (byteOffset + arrayType.BYTES_PER_ELEMENT > this.byteLength)
-          throw RangeError('Array index out of range');
+                       this._size = ++this._size;
+                       if (!supportsGetters) {
+                               this.size = this._size;
+                       }
+                       // 8. Return S.
+                       return S;
+               });

 
 

-        // Get bytes
-        var typeArray = new arrayType([value]),
-            byteArray = new Uint8Array(typeArray.buffer),
-            bytes = [], i, byteView;
+       // 23.2.3.2. Set.prototype.clear ( )
+       CreateMethodProperty(Set.prototype, 'clear', function clear() {
+                       // 1. Let S be the this value.
+                       var S = this;
+                       // 2. If Type(S) is not Object, throw a TypeError exception.
+                       if (typeof S !== 'object') {
+                               throw new TypeError('Method Set.prototype.clear called on incompatible receiver ' + Object.prototype.toString.call(S));
+                       }
+                       // 3. If S does not have a [[SetData]] internal slot, throw a TypeError exception.
+                       if (S._es6Set !== true) {
+                               throw new TypeError('Method Set.prototype.clear called on incompatible receiver ' + Object.prototype.toString.call(S));
+                       }
+                       // 4. Let entries be the List that is S.[[SetData]].
+                       var entries = S._values;
+                       // 5. For each e that is an element of entries, do
+                       for (var i = 0; i < entries.length; i++) {
+                               // a. Replace the element of entries whose value is e with an element whose value is empty.
+                               entries[i] = undefMarker;
+                       }
+                       this._size = 0;
+                       if (!supportsGetters) {
+                               this.size = this._size;
+                       }
+                       // 6. Return undefined.
+                       return undefined;
+               });

 
 

-        for (i = 0; i < arrayType.BYTES_PER_ELEMENT; i += 1)
-          bytes.push(r(byteArray, i));
+       // 23.2.3.3. Set.prototype.constructor
+       CreateMethodProperty(Set.prototype, 'constructor', Set);

 
 

-        // Flip if necessary
-        if (Boolean(littleEndian) === Boolean(IS_BIG_ENDIAN))
-          bytes.reverse();
+       // 23.2.3.4. Set.prototype.delete ( value )
+       CreateMethodProperty(Set.prototype, 'delete', function (value) {
+                       // 1. Let S be the this value.
+                       var S = this;
+                       // 2. If Type(S) is not Object, throw a TypeError exception.
+                       if (typeof S !== 'object') {
+                               throw new TypeError('Method Set.prototype.delete called on incompatible receiver ' + Object.prototype.toString.call(S));
+                       }
+                       // 3. If S does not have a [[SetData]] internal slot, throw a TypeError exception.
+                       if (S._es6Set !== true) {
+                               throw new TypeError('Method Set.prototype.delete called on incompatible receiver ' + Object.prototype.toString.call(S));
+                       }
+                       // 4. Let entries be the List that is S.[[SetData]].
+                       var entries = S._values;
+                       // 5. For each e that is an element of entries, do
+                       for (var i = 0; i < entries.length; i++) {
+                               var e = entries[i];
+                               // a. If e is not empty and SameValueZero(e, value) is true, then
+                               if (e !== undefMarker && SameValueZero(e, value)) {
+                                       // i. Replace the element of entries whose value is e with an element whose value is empty.
+                                       entries[i] = undefMarker;

 
 

-        // Write them
-        byteView = new Uint8Array(this.buffer, byteOffset, arrayType.BYTES_PER_ELEMENT);
-        byteView.set(bytes);
-      };
-    }
+                                       this._size = --this._size;
+                                       if (!supportsGetters) {
+                                               this.size = this._size;
+                                       }
+                                       // ii. Return true.
+                                       return true;
+                               }
+                       }
+                       // 6. Return false.
+                       return false;
+               }
+       );

 
 

-    Object.defineProperty(DataView.prototype, 'setUint8', {value: makeSetter(Uint8Array)});
-    Object.defineProperty(DataView.prototype, 'setInt8', {value: makeSetter(Int8Array)});
-    Object.defineProperty(DataView.prototype, 'setUint16', {value: makeSetter(Uint16Array)});
-    Object.defineProperty(DataView.prototype, 'setInt16', {value: makeSetter(Int16Array)});
-    Object.defineProperty(DataView.prototype, 'setUint32', {value: makeSetter(Uint32Array)});
-    Object.defineProperty(DataView.prototype, 'setInt32', {value: makeSetter(Int32Array)});
-    Object.defineProperty(DataView.prototype, 'setFloat32', {value: makeSetter(Float32Array)});
-    Object.defineProperty(DataView.prototype, 'setFloat64', {value: makeSetter(Float64Array)});
+       // 23.2.3.5. Set.prototype.entries ( )
+       CreateMethodProperty(Set.prototype, 'entries', function entries() {
+                       // 1. Let S be the this value.
+                       var S = this;
+                       // 2. Return ? CreateSetIterator(S, "key+value").
+                       return CreateSetIterator(S, 'key+value');
+               }
+       );

 
 

-    global.DataView = global.DataView || DataView;
+       // 23.2.3.6. Set.prototype.forEach ( callbackfn [ , thisArg ] )
+       CreateMethodProperty(Set.prototype, 'forEach', function forEach(callbackFn /*[ , thisArg ]*/) {
+                       // 1. Let S be the this value.
+                       var S = this;
+                       // 2. If Type(S) is not Object, throw a TypeError exception.
+                       if (typeof S !== 'object') {
+                               throw new TypeError('Method Set.prototype.forEach called on incompatible receiver ' + Object.prototype.toString.call(S));
+                       }
+                       // 3. If S does not have a [[SetData]] internal slot, throw a TypeError exception.
+                       if (S._es6Set !== true) {
+                               throw new TypeError('Method Set.prototype.forEach called on incompatible receiver ' + Object.prototype.toString.call(S));
+                       }
+                       // 4. If IsCallable(callbackfn) is false, throw a TypeError exception.
+                       if (!IsCallable(callbackFn)) {
+                               throw new TypeError(Object.prototype.toString.call(callbackFn) + ' is not a function.');
+                       }
+                       // 5. If thisArg is present, let T be thisArg; else let T be undefined.
+                       if (arguments[1]) {
+                               var T = arguments[1];
+                       }
+                       // 6. Let entries be the List that is S.[[SetData]].
+                       var entries = S._values;
+                       // 7. For each e that is an element of entries, in original insertion order, do
+                       for (var i = 0; i < entries.length; i++) {
+                               var e = entries[i];
+                               // a. If e is not empty, then
+                               if (e !== undefMarker) {
+                                       // i. Perform ? Call(callbackfn, T, « e, e, S »).
+                                       callbackFn.call(T, e, e, S);
+                               }
+                       }
+                       // 8. Return undefined.
+                       return undefined;
+               }
+       );

 
 

-  }());
+       // 23.2.3.7. Set.prototype.has ( value )
+       CreateMethodProperty(Set.prototype, 'has', function has(value) {
+                       // 1. Let S be the this value.
+                       var S = this;
+                       // 2. If Type(S) is not Object, throw a TypeError exception.
+                       if (typeof S !== 'object') {
+                               throw new TypeError('Method Set.prototype.forEach called on incompatible receiver ' + Object.prototype.toString.call(S));
+                       }
+                       // 3. If S does not have a [[SetData]] internal slot, throw a TypeError exception.
+                       if (S._es6Set !== true) {
+                               throw new TypeError('Method Set.prototype.forEach called on incompatible receiver ' + Object.prototype.toString.call(S));
+                       }
+                       // 4. Let entries be the List that is S.[[SetData]].
+                       var entries = S._values;
+                       // 5. For each e that is an element of entries, do
+                       for (var i = 0; i < entries.length; i++) {
+                               var e = entries[i];
+                               // a. If e is not empty and SameValueZero(e, value) is true, return true.
+                               if (e !== undefMarker && SameValueZero(e, value)) {
+                                       return true;
+                               }
+                       }
+                       // 6. Return false.
+                       return false;
+               }
+       );

 
 

-}(self));
-if (!('fround' in Math)) {
+       // Polyfill.io - We need to define Set.prototype.values before Set.prototype.keys because keys is a reference to values.
+       // 23.2.3.10. Set.prototype.values()
+       var values = function values() {
+               // 1. Let S be the this value.
+               var S = this;
+               // 2. Return ? CreateSetIterator(S, "value").
+               return CreateSetIterator(S, "value");
+       };
+       CreateMethodProperty(Set.prototype, 'values', values);

 
 

-// Math.fround
-/* global Float32Array */
-// 20.2.2.17 Math.fround ( x )
-CreateMethodProperty(Math, 'fround', function (x) {
-       // 1. If x is NaN, return NaN.
-       if (isNaN(x)) {
-               return NaN;
-       }
-       // 2. If x is one of +0, -0, +∞, -∞, return x.
-       if (1 / x === +Infinity || 1 / x === -Infinity || x === +Infinity || x === -Infinity) {
-               return x;
+       // 23.2.3.8 Set.prototype.keys ( )
+       // The initial value of the keys property is the same function object as the initial value of the values property.
+       CreateMethodProperty(Set.prototype, 'keys', values);
+
+       // 23.2.3.9. get Set.prototype.size
+       if (supportsGetters) {
+               Object.defineProperty(Set.prototype, 'size', {
+                       configurable: true,
+                       enumerable: false,
+                       get: function () {
+                               // 1. Let S be the this value.
+                               var S = this;
+                               // 2. If Type(S) is not Object, throw a TypeError exception.
+                               if (typeof S !== 'object') {
+                                       throw new TypeError('Method Set.prototype.size called on incompatible receiver ' + Object.prototype.toString.call(S));
+                               }
+                               // 3. If S does not have a [[SetData]] internal slot, throw a TypeError exception.
+                               if (S._es6Set !== true) {
+                                       throw new TypeError('Method Set.prototype.size called on incompatible receiver ' + Object.prototype.toString.call(S));
+                               }
+                               // 4. Let entries be the List that is S.[[SetData]].
+                               var entries = S._values;
+                               // 5. Let count be 0.
+                               var count = 0;
+                               // 6. For each e that is an element of entries, do
+                               for (var i = 0; i < entries.length; i++) {
+                                       var e = entries[i];
+                                       // a. If e is not empty, set count to count+1.
+                                       if (e !== undefMarker) {
+                                               count = count + 1;
+                                       }
+                               }
+                               // 7. Return count.
+                               return count;
+                       },
+                       set: undefined
+               });

        }
        }

-       // 3. Let x32 be the result of converting x to a value in IEEE 754-2008 binary32 format using roundTiesToEven.
-       // 4. Let x64 be the result of converting x32 to a value in IEEE 754-2008 binary64 format.
-       // 5. Return the ECMAScript Number value corresponding to x64.
-       return (new Float32Array([x]))[0];
-});

 
 

-}
+       // 23.2.3.11. Set.prototype [ @@iterator ] ( )
+       // The initial value of the @@iterator property is the same function object as the initial value of the values property.
+       CreateMethodProperty(Set.prototype, Symbol.iterator, values);

 
 

-if (!('hypot' in Math)) {
+       // 23.2.3.12. Set.prototype [ @@toStringTag ]
+       // The initial value of the @@toStringTag property is the String value "Set".
+       // This property has the attributes { [[Writable]]: false, [[Enumerable]]: false, [[Configurable]]: true }.

 
 

-// Math.hypot
-/* global CreateMethodProperty */
-// 20.2.2.18. Math.hypot ( value1, value2, ...values )
-CreateMethodProperty(Math, 'hypot', function hypot(value1, value2) { // eslint-disable-line no-unused-vars
-       // If no arguments are passed, the result is +0.
-       if (arguments.length === 0) {
-               return 0;
+       // Polyfill.io - Safari 8 implements Set.name but as a non-configurable property, which means it would throw an error if we try and configure it here.
+       if (!('name' in Set)) {
+               // 19.2.4.2 name
+               Object.defineProperty(Set, 'name', {
+                       configurable: true,
+                       enumerable: false,
+                       writable: false,
+                       value: 'Set'
+               });

        }
        }

-       var y = 0;
-       var max = 0;
-       for (var i = 0; i < arguments.length; ++i) {
-               // If any argument is +∞, the result is +∞.
-               if (arguments[i] === Infinity) {
-                       return Infinity;
+
+       // 23.2.5.1. CreateSetIterator ( set, kind )
+       function CreateSetIterator(set, kind) {
+               // 1. If Type(set) is not Object, throw a TypeError exception.
+               if (typeof set !== 'object') {
+                       throw new TypeError('createSetIterator called on incompatible receiver ' + Object.prototype.toString.call(set));

                }
                }

+               // 2. If set does not have a [[SetData]] internal slot, throw a TypeError exception.
+               if (set._es6Set !== true) {
+                       throw new TypeError('createSetIterator called on incompatible receiver ' + Object.prototype.toString.call(set));
+               }
+               // 3. Let iterator be ObjectCreate(%SetIteratorPrototype%, « [[IteratedSet]], [[SetNextIndex]], [[SetIterationKind]] »).
+               var iterator = Object.create(SetIteratorPrototype);
+               // 4. Set iterator.[[IteratedSet]] to set.
+               Object.defineProperty(iterator, '[[IteratedSet]]', {
+                       configurable: true,
+                       enumerable: false,
+                       writable: true,
+                       value: set
+               });
+               // 5. Set iterator.[[SetNextIndex]] to 0.
+               Object.defineProperty(iterator, '[[SetNextIndex]]', {
+                       configurable: true,
+                       enumerable: false,
+                       writable: true,
+                       value: 0
+               });
+               // 6. Set iterator.[[SetIterationKind]] to kind.
+               Object.defineProperty(iterator, '[[SetIterationKind]]', {
+                       configurable: true,
+                       enumerable: false,
+                       writable: true,
+                       value: kind
+               });
+               // 7. Return iterator.
+               return iterator;
+       }

 
 

-               // If any argument is -∞, the result is +∞.
-               if (arguments[i] === -Infinity) {
-                       return Infinity;
+       // 23.2.5.2. The %SetIteratorPrototype% Object
+       var SetIteratorPrototype = {};
+       //Polyfill.io - We add this property to help us identify what is a set iterator.
+       Object.defineProperty(SetIteratorPrototype, 'isSetIterator', {
+               configurable: false,
+               enumerable: false,
+               writable: false,
+               value: true
+       });
+
+       // 23.2.5.2.1. %SetIteratorPrototype%.next ( )
+       CreateMethodProperty(SetIteratorPrototype, 'next', function next() {
+               // 1. Let O be the this value.
+               var O = this;
+               // 2. If Type(O) is not Object, throw a TypeError exception.
+               if (typeof O !== 'object') {
+                       throw new TypeError('Method %SetIteratorPrototype%.next called on incompatible receiver ' + Object.prototype.toString.call(O));
+               }
+               // 3. If O does not have all of the internal slots of a Set Iterator Instance (23.2.5.3), throw a TypeError exception.
+               if (!O.isSetIterator) {
+                       throw new TypeError('Method %SetIteratorPrototype%.next called on incompatible receiver ' + Object.prototype.toString.call(O));
+               }
+               // 4. Let s be O.[[IteratedSet]].
+               var s = O['[[IteratedSet]]'];
+               // 5. Let index be O.[[SetNextIndex]].
+               var index = O['[[SetNextIndex]]'];
+               // 6. Let itemKind be O.[[SetIterationKind]].
+               var itemKind = O['[[SetIterationKind]]'];
+               // 7. If s is undefined, return CreateIterResultObject(undefined, true).
+               if (s === undefined) {
+                       return CreateIterResultObject(undefined, true);
+               }
+               // 8. Assert: s has a [[SetData]] internal slot.
+               if (!s._es6Set) {
+                       throw new Error(Object.prototype.toString.call(s) + ' does not have [[SetData]] internal slot.');
+               }
+               // 9. Let entries be the List that is s.[[SetData]].
+               var entries = s._values;
+               // 10. Let numEntries be the number of elements of entries.
+               var numEntries = entries.length;
+               // 11. NOTE: numEntries must be redetermined each time this method is evaluated.
+               // 12. Repeat, while index is less than numEntries,
+               while (index < numEntries) {
+                       // a. Let e be entries[index].
+                       var e = entries[index];
+                       // b. Set index to index+1.
+                       index = index + 1;
+                       // c. Set O.[[SetNextIndex]] to index.
+                       O['[[SetNextIndex]]'] = index;
+                       // d. If e is not empty, then
+                       if (e !== undefMarker) {
+                               // i. If itemKind is "key+value", then
+                               if (itemKind === 'key+value') {
+                                       // 1. Return CreateIterResultObject(CreateArrayFromList(« e, e »), false).
+                                       return CreateIterResultObject([e, e], false);
+                               }
+                               // ii. Return CreateIterResultObject(e, false).
+                               return CreateIterResultObject(e, false);
+                       }

                }
                }

+               // 13. Set O.[[IteratedSet]] to undefined.
+               O['[[IteratedSet]]'] = undefined;
+               // 14. Return CreateIterResultObject(undefined, true).
+               return CreateIterResultObject(undefined, true);
+       });

 
 

-               // If no argument is +∞ or -∞, and any argument is NaN, the result is NaN.
-               // If all arguments are either +0 or -0, the result is +0.
-               // Polyfill.io - The two conditions above are handled in the math.
+       // 23.2.5.2.2. %SetIteratorPrototype% [ @@toStringTag ]
+       // The initial value of the @@toStringTag property is the String value "Set Iterator".
+       // This property has the attributes { [[Writable]]: false, [[Enumerable]]: false, [[Configurable]]: true }.

 
 

-               var arg = Math.abs(Number(arguments[i]));
-               if (arg > max) {
-                       y = y * Math.pow(max / arg, 2);
-                       max = arg;
-               }
-               if (arg !== 0 || max !== 0) {
-                       y = y + Math.pow(arg / max, 2);
+       CreateMethodProperty(SetIteratorPrototype, Symbol.iterator, function iterator() {
+                       return this;

                }
                }

-       }
-
-  return max * Math.sqrt(y);
-});
-
-}
-
-if (!('imul' in Math)) {
-
-// Math.imul
-/* global CreateMethodProperty, ToUint32 */
-// 20.2.2.19. Math.imul ( x, y )
-CreateMethodProperty(Math, 'imul', function imul(x, y) {
-       // 1. Let a be ToUint32(x).
-       var a = ToUint32(x);
-       // 2. Let b be ToUint32(y).
-       var b = ToUint32(y);
-       // 3. Let product be (a × b) modulo 2^32.
-       var product = (a * b) % Math.pow(2, 32);
-       // 4. If product ≥ 2^31, return product - 2^32; otherwise return product.
-       return (product >= Math.pow(2, 31)) ? product - Math.pow(2, 32) : product;
-});
-
-}
-
-if (!('log10' in Math)) {
-
-// Math.log10
-/* global CreateMethodProperty */
-// 20.2.2.22. Math.log10 ( x )
-CreateMethodProperty(Math, 'log10', function log10(x) {
-       return Math.log(x) / Math.LN10;
-});
-
-}
-
-if (!('log1p' in Math)) {
-
-// Math.log1p
-/* global CreateMethodProperty */
-// 20.2.2.21. Math.log1p ( x )
-CreateMethodProperty(Math, 'log1p', function log1p(x) {
-       return Math.log(1 + x);
-});
-
-}
+       );

 
 

-if (!('log2' in Math)) {
+       // Export the object
+       try {
+               CreateMethodProperty(global, 'Set', Set);
+       } catch (e) {
+               // IE8 throws an error here if we set enumerable to false.
+               // More info on table 2: https://msdn.microsoft.com/en-us/library/dd229916(v=vs.85).aspx
+               global['Set'] = Set;
+       }

 
 

-// Math.log2
-/* global CreateMethodProperty */
-// 20.2.2.23. Math.log2 ( x )
-CreateMethodProperty(Math, 'log2', function log2(x) {
-       return Math.log(x) / Math.LN2;
-});
+}(this));

 
 }
 
 
 }
 

-if (!('sign' in Math)) {
+if (!("from"in Array&&function(){try{return Array.from({length:-Infinity}),!0}catch(r){return!1}}()
+)) {

 
 

-// Math.sign
-/* global CreateMethodProperty */
-// 20.2.2.29. Math.sign ( x )
-CreateMethodProperty(Math, 'sign', function sign(x) {
-       var x = Number(x);
-       // If x is NaN, the result is NaN.
-       if (isNaN(x)) {
-               return NaN;
-       }
-       // If x is -0, the result is -0.
-       if (1 / x === -Infinity) {
-               return -0;
-       }
-       // If x is +0, the result is +0.
-       if (1 / x === Infinity) {
-               return 0;
-       }
-       // If x is negative and not -0, the result is -1.
-       if (x < 0) {
-               return -1;
-       }
-       // If x is positive and not +0, the result is +1.
-       if (x > 0) {
-               return 1;
+// Array.from
+/* globals
+       IsCallable, GetMethod, Symbol, IsConstructor, Construct, ArrayCreate, GetIterator, IteratorClose,
+       ToString, IteratorStep, IteratorValue, Call, CreateDataPropertyOrThrow, ToObject, ToLength, Get, CreateMethodProperty
+*/
+(function () {
+       var toString = Object.prototype.toString;
+       var stringMatch = String.prototype.match;
+       // A cross-realm friendly way to detect if a value is a String object or literal.
+       function isString(value) {
+               if (typeof value === 'string') { return true; }
+               if (typeof value !== 'object') { return false; }
+               return toString.call(value) === '[object String]';

        }
        }

-});

 
 

-}
+       // 22.1.2.1. Array.from ( items [ , mapfn [ , thisArg ] ] )
+       CreateMethodProperty(Array, 'from', function from(items /* [ , mapfn [ , thisArg ] ] */) { // eslint-disable-line no-undef
+               // 1. Let C be the this value.
+               var C = this;
+               // 2. If mapfn is undefined, let mapping be false.
+               var mapfn = arguments.length > 1 ? arguments[1] : undefined;
+               if (mapfn === undefined) {
+                       var mapping = false;
+                       // 3. Else,
+               } else {
+                       // a. If IsCallable(mapfn) is false, throw a TypeError exception.
+                       if (IsCallable(mapfn) === false) {
+                               throw new TypeError(Object.prototype.toString.call(mapfn) + ' is not a function.');
+                       }
+                       // b. If thisArg is present, let T be thisArg; else let T be undefined.
+                       var thisArg = arguments.length > 2 ? arguments[2] : undefined;
+                       if (thisArg !== undefined) {
+                               var T = thisArg;
+                       } else {
+                               T = undefined;
+                       }
+                       // c. Let mapping be true.
+                       mapping = true;

 
 

-if (!('sinh' in Math)) {
+               }
+               // 4. Let usingIterator be ? GetMethod(items, @@iterator).
+               var usingIterator = GetMethod(items, Symbol.iterator);
+               // 5. If usingIterator is not undefined, then
+               if (usingIterator !== undefined) {
+                       // a. If IsConstructor(C) is true, then
+                       if (IsConstructor(C)) {
+                               // i. Let A be ? Construct(C).
+                               var A = Construct(C);
+                               // b. Else,
+                       } else {
+                               // i. Let A be ! ArrayCreate(0).
+                               A = ArrayCreate(0);
+                       }
+                       // c. Let iteratorRecord be ? GetIterator(items, usingIterator).
+                       var iteratorRecord = GetIterator(items, usingIterator);
+                       // d. Let k be 0.
+                       var k = 0;
+                       // e. Repeat,
+                       while (true) {
+                               // i. If k ≥ 2^53-1, then
+                               if (k >= (Math.pow(2, 53) - 1)) {
+                                       // 1. Let error be Completion{[[Type]]: throw, [[Value]]: a newly created TypeError object, [[Target]]: empty}.
+                                       var error = new TypeError('Iteration count can not be greater than or equal 9007199254740991.');
+                                       // 2. Return ? IteratorClose(iteratorRecord, error).
+                                       return IteratorClose(iteratorRecord, error);
+                               }
+                               // ii. Let Pk be ! ToString(k).
+                               var Pk = ToString(k);
+                               // iii. Let next be ? IteratorStep(iteratorRecord).
+                               var next = IteratorStep(iteratorRecord);
+                               // iv. If next is false, then
+                               if (next === false) {
+                                       // 1. Perform ? Set(A, "length", k, true).
+                                       A["length"] = k;
+                                       // 2. Return A.
+                                       return A;
+                               }
+                               // v. Let nextValue be ? IteratorValue(next).
+                               var nextValue = IteratorValue(next);
+                               // vi. If mapping is true, then
+                               if (mapping) {
+                                       try {
+                                               // Polyfill.io - The try catch accounts for step 2.
+                                               // 1. Let mappedValue be Call(mapfn, T, « nextValue, k »).
+                                               var mappedValue = Call(mapfn, T, [nextValue, k]);
+                                               // 2. If mappedValue is an abrupt completion, return ? IteratorClose(iteratorRecord, mappedValue).
+                                               // 3. Let mappedValue be mappedValue.[[Value]].
+                                       } catch (e) {
+                                               return IteratorClose(iteratorRecord, e);
+                                       }

 
 

-// Math.sinh
-/* global CreateMethodProperty */
-// 20.2.2.31. Math.sinh ( x )
-CreateMethodProperty(Math, 'sinh', function sinh(x) {
-       var s = (x < 0) ? -1 : 1;
-       var absx = Math.abs(x);
-       if (absx < 22) {
-               if (absx < Math.pow(2, -28)) {
-                       return x;
+                                       // vii. Else, let mappedValue be nextValue.
+                               } else {
+                                       mappedValue = nextValue;
+                               }
+                               try {
+                                       // Polyfill.io - The try catch accounts for step ix.
+                                       // viii. Let defineStatus be CreateDataPropertyOrThrow(A, Pk, mappedValue).
+                                       CreateDataPropertyOrThrow(A, Pk, mappedValue);
+                                       // ix. If defineStatus is an abrupt completion, return ? IteratorClose(iteratorRecord, defineStatus).
+                               } catch (e) {
+                                       return IteratorClose(iteratorRecord, e);
+                               }
+                               // x. Increase k by 1.
+                               k = k + 1;
+                       }

                }
                }

-               var t = Math.exp(absx) - 1;
-               if (absx < 1) {
-                       return (s * (2 * t - t * t / (t + 1)))/2;
+               // 6. NOTE: items is not an Iterable so assume it is an array-like object.
+               // 7. Let arrayLike be ! ToObject(items).
+               // Polyfill.io - For Strings we need to split astral symbols into surrogate pairs.
+               if (isString(items)) {
+                       var arrayLike = stringMatch.call(items, /[\uD800-\uDBFF][\uDC00-\uDFFF]?|[^\uD800-\uDFFF]|./g) || [];
+               } else {
+                       arrayLike = ToObject(items);
+               }
+               // 8. Let len be ? ToLength(? Get(arrayLike, "length")).
+               var len = ToLength(Get(arrayLike, "length"));
+               // 9. If IsConstructor(C) is true, then
+               if (IsConstructor(C)) {
+                       // a. Let A be ? Construct(C, « len »).
+                       A = Construct(C, [len]);
+                       // 10. Else,
+               } else {
+                       // a. Let A be ? ArrayCreate(len).
+                       A = ArrayCreate(len);
+               }
+               // 11. Let k be 0.
+               k = 0;
+               // 12. Repeat, while k < len
+               while (k < len) {
+                       // a. Let Pk be ! ToString(k).
+                       Pk = ToString(k);
+                       // b. Let kValue be ? Get(arrayLike, Pk).
+                       var kValue = Get(arrayLike, Pk);
+                       // c. If mapping is true, then
+                       if (mapping === true) {
+                               // i. Let mappedValue be ? Call(mapfn, T, « kValue, k »).
+                               mappedValue = Call(mapfn, T, [kValue, k]);
+                               // d. Else, let mappedValue be kValue.
+                       } else {
+                               mappedValue = kValue;
+                       }
+                       // e. Perform ? CreateDataPropertyOrThrow(A, Pk, mappedValue).
+                       CreateDataPropertyOrThrow(A, Pk, mappedValue);
+                       // f. Increase k by 1.
+                       k = k + 1;

                }
                }

-               return (s * (t + t / (t + 1)))/2;
-       }
-       if (absx < 709.7822265625) {
-               return (s * Math.exp(absx))/2;
-       }
-       var w = Math.exp(0.5 * absx);
-       var t = (s * w)/2;
-       return t * w;
-});
-
-}
-
-if (!('tanh' in Math)) {
-
-// Math.tanh
-/* global CreateMethodProperty */
-// 20.2.2.34. Math.tanh ( x )
-CreateMethodProperty(Math, 'tanh', function tanh(x) {
-       var y;
-
-       return x === Infinity ? 1 : x === -Infinity ? -1 : (y = Math.exp(2 * x), (y - 1) / (y + 1));
-});
+               // 13. Perform ? Set(A, "length", len, true).
+               A["length"] = len;
+               // 14. Return A.
+               return A;
+       });
+}());

 
 }
 
 
 }
 

-if (!('trunc' in Math)) {
+if (!("Symbol"in this&&"split"in this.Symbol
+)) {

 
 

-// Math.trunc
-/* global CreateMethodProperty */
-CreateMethodProperty(Math, 'trunc', function trunc(x) {
-       return x < 0 ? Math.ceil(x) : Math.floor(x);
-});
+// Symbol.split
+/* global Symbol */
+Object.defineProperty(Symbol, 'split', { value: Symbol('split') });

 
 }
 
 
 }
 

-if (!('EPSILON' in Number)) {
+if (!("Symbol"in this&&"toPrimitive"in this.Symbol
+)) {

 
 

-// Number.Epsilon
-// 20.1.2.1. Number.EPSILON
-// The value of Number.EPSILON is the difference between 1 and the smallest value greater than 1 that is representable as a Number value, which is approximately 2.2204460492503130808472633361816 x 10-16.
-// This property has the attributes { [[Writable]]: false, [[Enumerable]]: false, [[Configurable]]: false }.
-Object.defineProperty(Number, 'EPSILON', {
-       enumerable: false,
-       configurable: false,
-       writable: false,
-       value: Math.pow(2, -52)
-});
+// Symbol.toPrimitive
+/* global Symbol */
+Object.defineProperty(Symbol, 'toPrimitive', { value: Symbol('toPrimitive') });

 
 }
 
 
 }
 

-if (!('MAX_SAFE_INTEGER' in Number)) {
+if (!("Symbol"in this&&"toStringTag"in this.Symbol
+)) {

 
 

-// Number.MAX_SAFE_INTEGER
-// 20.1.2.6. Number.MAX_SAFE_INTEGER
-// The value of Number.MAX_SAFE_INTEGER is 9007199254740991 (2^53-1).
-// This property has the attributes { [[Writable]]: false, [[Enumerable]]: false, [[Configurable]]: false }.
-Object.defineProperty(Number, 'MAX_SAFE_INTEGER', {
-       enumerable: false,
-       configurable: false,
-       writable: false,
-       value: Math.pow(2, 53) - 1
+// Symbol.toStringTag
+/* global Symbol */
+Object.defineProperty(Symbol, 'toStringTag', {
+       value: Symbol('toStringTag')

 });
 
 }
 
 });
 
 }
 

-if (!('MIN_SAFE_INTEGER' in Number)) {

 
 

-// Number.MIN_SAFE_INTEGER
-// 20.1.2.8. Number.MIN_SAFE_INTEGER
-// The value of Number.MIN_SAFE_INTEGER is -9007199254740991 (-(253-1)).
-// This property has the attributes { [[Writable]]: false, [[Enumerable]]: false, [[Configurable]]: false }.
-Object.defineProperty(Number, 'MIN_SAFE_INTEGER', {
-       enumerable: false,
-       configurable: false,
-       writable: false,
-       value: -(Math.pow(2, 53) - 1)
-});
+// _Iterator
+/* global Symbol */
+// A modification of https://github.com/medikoo/es6-iterator
+// Copyright (C) 2013-2015 Mariusz Nowak (www.medikoo.com)

 
 

-}
+var Iterator = (function () { // eslint-disable-line no-unused-vars
+       var clear = function () {
+               this.length = 0;
+               return this;
+       };
+       var callable = function (fn) {
+               if (typeof fn !== 'function') throw new TypeError(fn + " is not a function");
+               return fn;
+       };

 
 

-if (!('isFinite' in Number)) {
+       var Iterator = function (list, context) {
+               if (!(this instanceof Iterator)) {
+                       return new Iterator(list, context);
+               }
+               Object.defineProperties(this, {
+                       __list__: {
+                               writable: true,
+                               value: list
+                       },
+                       __context__: {
+                               writable: true,
+                               value: context
+                       },
+                       __nextIndex__: {
+                               writable: true,
+                               value: 0
+                       }
+               });
+               if (!context) return;
+               callable(context.on);
+               context.on('_add', this._onAdd.bind(this));
+               context.on('_delete', this._onDelete.bind(this));
+               context.on('_clear', this._onClear.bind(this));
+       };

 
 

-// Number.isFinite
-/* global CreateMethodProperty, Type */
-(function () {
-       var that = this;
-       // 20.1.2.2. Number.isFinite ( number )
-       CreateMethodProperty(Number, 'isFinite', function isFinite(number) {
-               // 1. If Type(number) is not Number, return false.
-               if (Type(number) !== 'number') {
-                       return false;
+       Object.defineProperties(Iterator.prototype, Object.assign({
+               constructor: {
+                       value: Iterator,
+                       configurable: true,
+                       enumerable: false,
+                       writable: true
+               },
+               _next: {
+                       value: function () {
+                               var i;
+                               if (!this.__list__) return;
+                               if (this.__redo__) {
+                                       i = this.__redo__.shift();
+                                       if (i !== undefined) return i;
+                               }
+                               if (this.__nextIndex__ < this.__list__.length) return this.__nextIndex__++;
+                               this._unBind();
+                       },
+                       configurable: true,
+                       enumerable: false,
+                       writable: true
+               },
+               next: {
+                       value: function () {
+                               return this._createResult(this._next());
+                       },
+                       configurable: true,
+                       enumerable: false,
+                       writable: true
+               },
+               _createResult: {
+                       value: function (i) {
+                               if (i === undefined) return {
+                                       done: true,
+                                       value: undefined
+                               };
+                               return {
+                                       done: false,
+                                       value: this._resolve(i)
+                               };
+                       },
+                       configurable: true,
+                       enumerable: false,
+                       writable: true
+               },
+               _resolve: {
+                       value: function (i) {
+                               return this.__list__[i];
+                       },
+                       configurable: true,
+                       enumerable: false,
+                       writable: true
+               },
+               _unBind: {
+                       value: function () {
+                               this.__list__ = null;
+                               delete this.__redo__;
+                               if (!this.__context__) return;
+                               this.__context__.off('_add', this._onAdd.bind(this));
+                               this.__context__.off('_delete', this._onDelete.bind(this));
+                               this.__context__.off('_clear', this._onClear.bind(this));
+                               this.__context__ = null;
+                       },
+                       configurable: true,
+                       enumerable: false,
+                       writable: true
+               },
+               toString: {
+                       value: function () {
+                               return '[object Iterator]';
+                       },
+                       configurable: true,
+                       enumerable: false,
+                       writable: true

                }
                }

-               // 2. If number is NaN, +∞, or -∞, return false.
-               // 3. Otherwise, return true.
-               // Polyfill.io - We use isFinite as it implements steps 2 and 3.
-               return that.isFinite(number);
-       });
-}());
+       }, {
+               _onAdd: {
+                       value: function (index) {
+                               if (index >= this.__nextIndex__) return;
+                               ++this.__nextIndex__;
+                               if (!this.__redo__) {
+                                       Object.defineProperty(this, '__redo__', {
+                                               value: [index],
+                                               configurable: true,
+                                               enumerable: false,
+                                               writable: false
+                                       });
+                                       return;
+                               }
+                               this.__redo__.forEach(function (redo, i) {
+                                       if (redo >= index) this.__redo__[i] = ++redo;
+                               }, this);
+                               this.__redo__.push(index);
+                       },
+                       configurable: true,
+                       enumerable: false,
+                       writable: true
+               },
+               _onDelete: {
+                       value: function (index) {
+                               var i;
+                               if (index >= this.__nextIndex__) return;
+                               --this.__nextIndex__;
+                               if (!this.__redo__) return;
+                               i = this.__redo__.indexOf(index);
+                               if (i !== -1) this.__redo__.splice(i, 1);
+                               this.__redo__.forEach(function (redo, i) {
+                                       if (redo > index) this.__redo__[i] = --redo;
+                               }, this);
+                       },
+                       configurable: true,
+                       enumerable: false,
+                       writable: true
+               },
+               _onClear: {
+                       value: function () {
+                               if (this.__redo__) clear.call(this.__redo__);
+                               this.__nextIndex__ = 0;
+                       },
+                       configurable: true,
+                       enumerable: false,
+                       writable: true
+               }
+       }));

 
 

-}
+       Object.defineProperty(Iterator.prototype, Symbol.iterator, {
+               value: function () {
+                       return this;
+               },
+               configurable: true,
+               enumerable: false,
+               writable: true
+       });
+       Object.defineProperty(Iterator.prototype, Symbol.toStringTag, {
+               value: 'Iterator',
+               configurable: false,
+               enumerable: false,
+               writable: true
+       });

 
 

-if (!('isInteger' in Number)) {
+       return Iterator;
+}());

 
 

-// Number.isInteger
-/* global CreateMethodProperty, ToInteger, Type */
-// 20.1.2.3. Number.isInteger ( number )
-CreateMethodProperty(Number, 'isInteger', function isInteger(number) {
-       // 1. If Type(number) is not Number, return false.
-       if (Type(number) !== 'number') {
-               return false;
-       }
-       // 2. If number is NaN, +∞, or -∞, return false.
-       if (isNaN(number) || number === Infinity || number === -Infinity) {
-               return false;
-       }
-       // 3. Let integer be ToInteger(number).
-       var integer = ToInteger(number);
-       // 4. If integer is not equal to number, return false.
-       if (integer !== number) {
-               return false;
-       }
-       // 5. Otherwise, return true.
-       return true;
-});
+// _ArrayIterator
+/* global Iterator */
+// A modification of https://github.com/medikoo/es6-iterator
+// Copyright (C) 2013-2015 Mariusz Nowak (www.medikoo.com)

 
 

-}
+var ArrayIterator = (function() { // eslint-disable-line no-unused-vars

 
 

-if (!('isNaN' in Number)) {
+       var ArrayIterator = function(arr, kind) {
+               if (!(this instanceof ArrayIterator)) return new ArrayIterator(arr, kind);
+               Iterator.call(this, arr);
+               if (!kind) kind = 'value';
+               else if (String.prototype.includes.call(kind, 'key+value')) kind = 'key+value';
+               else if (String.prototype.includes.call(kind, 'key')) kind = 'key';
+               else kind = 'value';
+               Object.defineProperty(this, '__kind__', {
+                       value: kind,
+                       configurable: false,
+                       enumerable: false,
+                       writable: false
+               });
+       };
+       if (Object.setPrototypeOf) Object.setPrototypeOf(ArrayIterator, Iterator.prototype);

 
 

-// Number.isNaN
-/* global CreateMethodProperty, Type */
-(function () {
-       var that = this;
-       // 20.1.2.4. Number.isNaN ( number )
-       CreateMethodProperty(Number, 'isNaN', function isNaN(number) {
-               // 1. If Type(number) is not Number, return false.
-               if (Type(number) !== 'number') {
-                       return false;
-               }
-               // 2. If number is NaN, return true.
-               if (that.isNaN(number)) {
-                       return true;
+       ArrayIterator.prototype = Object.create(Iterator.prototype, {
+               constructor: {
+                       value: ArrayIterator,
+                       configurable: true,
+                       enumerable: false,
+                       writable: true
+               },
+               _resolve: {
+                       value: function(i) {
+                               if (this.__kind__ === 'value') return this.__list__[i];
+                               if (this.__kind__ === 'key+value') return [i, this.__list__[i]];
+                               return i;
+                       },
+                       configurable: true,
+                       enumerable: false,
+                       writable: true
+               },
+               toString: {
+                       value: function() {
+                               return '[object Array Iterator]';
+                       },
+                       configurable: true,
+                       enumerable: false,
+                       writable: true

                }
                }

-               // 3. Otherwise, return false.
-               return false;

        });
        });

-}());

 
 

-}
-
-if (!('isSafeInteger' in Number)) {
+       return ArrayIterator;
+}());
+if (!("Symbol"in this&&"iterator"in this.Symbol&&!!Array.prototype.entries
+)) {

 
 

-// Number.isSafeInteger
-/* global CreateMethodProperty, Type, ToInteger */
-// 20.1.2.5. Number.isSafeInteger ( number )
-CreateMethodProperty(Number, 'isSafeInteger', function isSafeInteger(number) {
-       // 1. If Type(number) is not Number, return false.
-       if (Type(number) !== 'number') {
-               return false;
-       }
-       // 2. If number is NaN, +∞, or -∞, return false.
-       if (isNaN(number) || number === Infinity || number === -Infinity) {
-               return false;
-       }
-       // 3. Let integer be ToInteger(number).
-       var integer = ToInteger(number);
-       // 4. If integer is not equal to number, return false.
-       if (integer !== number) {
-               return false;
-       }
-       // 5. If abs(integer) ≤ 2^53-1, return true.
-       if (Math.abs(integer) <= (Math.pow(2, 53) - 1)) {
-               return true;
-       }
-       // 6. Otherwise, return false.
-       return false;
+// Array.prototype.entries
+/* global CreateMethodProperty, ToObject */
+// 22.1.3.4. Array.prototype.entries ( )
+CreateMethodProperty(Array.prototype, 'entries', function entries() {
+       // 1. Let O be ? ToObject(this value).
+       var O = ToObject(this);
+       // 2. Return CreateArrayIterator(O, "key+value").
+       // TODO: Add CreateArrayIterator
+       return new ArrayIterator(O, 'key+value');

 });
 
 }
 
 });
 
 }
 

-if (!('parseFloat' in Number)) {
-
-// Number.parseFloat
-/* global CreateMethodProperty */
-// 20.1.2.12. Number.parseFloat ( string )
-// The value of the Number.parseFloat data property is the same built-in function object that is the value of the  parseFloat property of the global object defined in 18.2.4.
-CreateMethodProperty(Number, 'parseFloat', parseFloat);
-
-}
-
-if (!('parseInt' in Number)) {
-
-// Number.parseInt
-/* global CreateMethodProperty */
-// 20.1.2.13. Number.parseInt ( string, radix )
-// The value of the Number.parseInt data property is the same built-in function object that is the value of the  parseInt property of the global object defined in 18.2.5.
-CreateMethodProperty(Number, 'parseInt', parseInt);
-
-}
-
-
-// _ESAbstract.SameValue
-/* global Type, SameValueNonNumber */
-// 7.2.10. SameValue ( x, y )
-function SameValue(x, y) { // eslint-disable-line no-unused-vars
-       // 1. If Type(x) is different from Type(y), return false.
-       if (Type(x) !== Type(y)) {
-               return false;
-       }
-       // 2. If Type(x) is Number, then
-       if (Type(x) === 'number') {
-               // a. If x is NaN and y is NaN, return true.
-               if (isNaN(x) && isNaN(y)) {
-                       return true;
-               }
-               // Polyfill.io - 0 === -0 is true, but they are not the same value.
-               // b. If x is +0 and y is -0, return false.
-               // c. If x is -0 and y is +0, return false.
-               if (x === 0 && y === 0 && 1/x !== 1/y) {
-                       return false;
-               }
-               // d. If x is the same Number value as y, return true.
-               if (x === y) {
-                       return true;
-               }
-               // e. Return false.
-               return false;
-       }
-       // 3. Return SameValueNonNumber(x, y).
-       return SameValueNonNumber(x, y);
-}
-if (!('is' in Object)) {
+if (!("Symbol"in this&&"iterator"in this.Symbol&&!!Array.prototype.keys
+)) {

 
 

-// Object.is
-/* global CreateMethodProperty, SameValue */
-// 19.1.2.12. Object.is ( value1, value2 )
-CreateMethodProperty(Object, 'is', function is(value1, value2) {
-       // 1. Return SameValue(value1, value2).
-       return SameValue(value1, value2);
+// Array.prototype.keys
+/* global CreateMethodProperty, ToObject */
+// 22.1.3.14. Array.prototype.keys ( )
+CreateMethodProperty(Array.prototype, 'keys', function keys() {
+       // 1. Let O be ? ToObject(this value).
+       var O = ToObject(this);
+       // 2. Return CreateArrayIterator(O, "key").
+       // TODO: Add CreateArrayIterator.
+       return new ArrayIterator(O, 'key');

 });
 
 }
 
 });
 
 }
 

-if (!('Promise' in this)) {
-
-// Promise
-!function(n){function t(r){if(e[r])return e[r].exports;var o=e[r]={i:r,l:!1,exports:{}};return n[r].call(o.exports,o,o.exports,t),o.l=!0,o.exports}var e={};t.m=n,t.c=e,t.i=function(n){return n},t.d=function(n,e,r){t.o(n,e)||Object.defineProperty(n,e,{configurable:!1,enumerable:!0,get:r})},t.n=function(n){var e=n&&n.__esModule?function(){return n["default"]}:function(){return n};return t.d(e,"a",e),e},t.o=function(n,t){return Object.prototype.hasOwnProperty.call(n,t)},t.p="",t(t.s=100)}({100:/*!***********************!*\
-  !*** ./src/global.js ***!
-  \***********************/
-function(n,t,e){(function(n){var t=e(/*! ./yaku */5);try{n.Promise=t,window.Promise=t}catch(r){}}).call(t,e(/*! ./../~/webpack/buildin/global.js */2))},2:/*!***********************************!*\
-  !*** (webpack)/buildin/global.js ***!
-  \***********************************/
-function(n,t){var e;e=function(){return this}();try{e=e||Function("return this")()||(0,eval)("this")}catch(r){"object"==typeof window&&(e=window)}n.exports=e},5:/*!*********************!*\
-  !*** ./src/yaku.js ***!
-  \*********************/
-function(n,t,e){(function(t){!function(){"use strict";function e(){return rn[q][B]||D}function r(n){return n&&"object"==typeof n}function o(n){return"function"==typeof n}function i(n,t){return n instanceof t}function u(n){return i(n,M)}function c(n,t,e){if(!t(n))throw h(e)}function f(){try{return R.apply(S,arguments)}catch(n){return nn.e=n,nn}}function s(n,t){return R=n,S=t,f}function a(n,t){function e(){for(var e=0;e<o;)t(r[e],r[e+1]),r[e++]=P,r[e++]=P;o=0,r.length>n&&(r.length=n)}var r=A(n),o=0;return function(n,t){r[o++]=n,r[o++]=t,2===o&&rn.nextTick(e)}}function l(n,t){var e,r,u,c,f=0;if(!n)throw h(Q);var a=n[rn[q][z]];if(o(a))r=a.call(n);else{if(!o(n.next)){if(i(n,A)){for(e=n.length;f<e;)t(n[f],f++);return f}throw h(Q)}r=n}for(;!(u=r.next()).done;)if((c=s(t)(u.value,f++))===nn)throw o(r[G])&&r[G](),c.e;return f}function h(n){return new TypeError(n)}function v(n){return(n?"":V)+(new M).stack}function _(n,t){var e="on"+n.toLowerCase(),r=O[e];H&&H.listeners(n).length?n===Z?H.emit(n,t._v,t):H.emit(n,t):r?r({reason:t._v,promise:t}):rn[n](t._v,t)}function p(n){return n&&n._s}function d(n){if(p(n))return new n(tn);var t,e,r;return t=new n(function(n,o){if(t)throw h();e=n,r=o}),c(e,o),c(r,o),t}function w(n,t){var e=!1;return function(r){e||(e=!0,L&&(n[N]=v(!0)),t===Y?k(n,r):x(n,t,r))}}function y(n,t,e,r){return o(e)&&(t._onFulfilled=e),o(r)&&(n[J]&&_(X,n),t._onRejected=r),L&&(t._p=n),n[n._c++]=t,n._s!==$&&on(n,t),t}function m(n){if(n._umark)return!0;n._umark=!0;for(var t,e=0,r=n._c;e<r;)if(t=n[e++],t._onRejected||m(t))return!0}function j(n,t){function e(n){return r.push(n.replace(/^\s+|\s+$/g,""))}var r=[];return L&&(t[N]&&e(t[N]),function o(n){n&&K in n&&(o(n._next),e(n[K]+""),o(n._p))}(t)),(n&&n.stack?n.stack:n)+("\n"+r.join("\n")).replace(en,"")}function g(n,t){return n(t)}function x(n,t,e){var r=0,o=n._c;if(n._s===$)for(n._s=t,n._v=e,t===U&&(L&&u(e)&&(e.longStack=j(e,n)),un(n));r<o;)on(n,n[r++]);return n}function k(n,t){if(t===n&&t)return x(n,U,h(W)),n;if(t!==C&&(o(t)||r(t))){var e=s(b)(t);if(e===nn)return x(n,U,e.e),n;o(e)?(L&&p(t)&&(n._next=t),p(t)?T(n,t,e):rn.nextTick(function(){T(n,t,e)})):x(n,Y,t)}else x(n,Y,t);return n}function b(n){return n.then}function T(n,t,e){var r=s(e,t)(function(e){t&&(t=C,k(n,e))},function(e){t&&(t=C,x(n,U,e))});r===nn&&t&&(x(n,U,r.e),t=C)}var P,R,S,C=null,F="object"==typeof self,O=F?self:t,E=O.Promise,H=O.process,I=O.console,L=!1,A=Array,M=Error,U=1,Y=2,$=3,q="Symbol",z="iterator",B="species",D=q+"("+B+")",G="return",J="_uh",K="_pt",N="_st",Q="Invalid argument",V="\nFrom previous ",W="Chaining cycle detected for promise",X="rejectionHandled",Z="unhandledRejection",nn={e:C},tn=function(){},en=/^.+\/node_modules\/yaku\/.+\n?/gm,rn=function(n){var t,e=this;if(!r(e)||e._s!==P)throw h("Invalid this");if(e._s=$,L&&(e[K]=v()),n!==tn){if(!o(n))throw h(Q);t=s(n)(w(e,Y),w(e,U)),t===nn&&x(e,U,t.e)}};rn["default"]=rn,function(n,t){for(var e in t)n[e]=t[e]}(rn.prototype,{then:function(n,t){if(this._s===undefined)throw h();return y(this,d(rn.speciesConstructor(this,rn)),n,t)},"catch":function(n){return this.then(P,n)},"finally":function(n){return this.then(function(t){return rn.resolve(n()).then(function(){return t})},function(t){return rn.resolve(n()).then(function(){throw t})})},_c:0,_p:C}),rn.resolve=function(n){return p(n)?n:k(d(this),n)},rn.reject=function(n){return x(d(this),U,n)},rn.race=function(n){var t=this,e=d(t),r=function(n){x(e,Y,n)},o=function(n){x(e,U,n)},i=s(l)(n,function(n){t.resolve(n).then(r,o)});return i===nn?t.reject(i.e):e},rn.all=function(n){function t(n){x(o,U,n)}var e,r=this,o=d(r),i=[];return(e=s(l)(n,function(n,u){r.resolve(n).then(function(n){i[u]=n,--e||x(o,Y,i)},t)}))===nn?r.reject(e.e):(e||x(o,Y,[]),o)},rn.Symbol=O[q]||{},s(function(){Object.defineProperty(rn,e(),{get:function(){return this}})})(),rn.speciesConstructor=function(n,t){var r=n.constructor;return r?r[e()]||t:t},rn.unhandledRejection=function(n,t){I&&I.error("Uncaught (in promise)",L?t.longStack:j(n,t))},rn.rejectionHandled=tn,rn.enableLongStackTrace=function(){L=!0},rn.nextTick=F?function(n){E?new E(function(n){n()}).then(n):setTimeout(n)}:H.nextTick,rn._s=1;var on=a(999,function(n,t){var e,r;return(r=n._s!==U?t._onFulfilled:t._onRejected)===P?void x(t,n._s,n._v):(e=s(g)(r,n._v))===nn?void x(t,U,e.e):void k(t,e)}),un=a(9,function(n){m(n)||(n[J]=1,_(Z,n))});try{n.exports=rn}catch(cn){O.Yaku=rn}}()}).call(t,e(/*! ./../~/webpack/buildin/global.js */2))}});
-}
-
-if (!('flags' in RegExp.prototype)) {
-
-// RegExp.prototype.flags
-/* global Get, ToBoolean, Type */
-Object.defineProperty(RegExp.prototype, 'flags', {
-       configurable: true,
-       enumerable: false,
-       get: function () {
-               // 21.2.5.3.1 Let R be the this value.
-               var R = this;
-
-               // 21.2.5.3.2 If Type(R) is not Object, throw a TypeError exception.
-               if (Type(R) !== 'object') {
-                       throw new TypeError('Method called on incompatible type: must be an object.');
-               }
-               // 21.2.5.3.3 Let result be the empty String.
-               var result = '';
-
-               // 21.2.5.3.4 Let global be ToBoolean(? Get(R, "global")).
-               var global = ToBoolean(Get(R, 'global'));
-
-               // 21.2.5.3.5 If global is true, append the code unit 0x0067 (LATIN SMALL LETTER G) as the last code unit of result.
-               if (global) {
-                       result += 'g';
-               }
-
-               // 21.2.5.3.6 Let ignoreCase be ToBoolean(? Get(R, "ignoreCase")).
-               var ignoreCase = ToBoolean(Get(R, 'ignoreCase'));
-
-               // 21.2.5.3.7 If ignoreCase is true, append the code unit 0x0069 (LATIN SMALL LETTER I) as the last code unit of result.
-               if (ignoreCase) {
-                       result += 'i';
-               }
-
-               // 21.2.5.3.8 Let multiline be ToBoolean(? Get(R, "multiline")).
-               var multiline = ToBoolean(Get(R, 'multiline'));
-
-               // 21.2.5.3.9 If multiline is true, append the code unit 0x006D (LATIN SMALL LETTER M) as the last code unit of result.
-               if (multiline) {
-                       result += 'm';
-               }
-
-               // 21.2.5.3.10 Let unicode be ToBoolean(? Get(R, "unicode")).
-               var unicode = ToBoolean(Get(R, 'unicode'));
+if (!("values"in Array.prototype
+)) {

 
 

-               // 21.2.5.3.11 If unicode is true, append the code unit 0x0075 (LATIN SMALL LETTER U) as the last code unit of result.
-               if (unicode) {
-                       result += 'u';
-               }
+// Array.prototype.values
+/* global CreateMethodProperty, Symbol, ToObject */
+// 22.1.3.30/ Array.prototype.values ( )
+// Polyfill.io - Firefox, Chrome and Opera have Array.prototype[Symbol.iterator], which is the exact same function as Array.prototype.values.
+if ('Symbol' in this && 'iterator' in Symbol && typeof Array.prototype[Symbol.iterator] === 'function') {
+       CreateMethodProperty(Array.prototype, 'values', Array.prototype[Symbol.iterator]);
+} else {
+       CreateMethodProperty(Array.prototype, 'values', function values () {
+               // 1. Let O be ? ToObject(this value).
+               var O = ToObject(this);
+               // 2. Return CreateArrayIterator(O, "value").
+               // TODO: Add CreateArrayIterator
+               return new ArrayIterator(O, 'value');
+       });
+}

 
 

-               // 21.2.5.3.12 Let sticky be ToBoolean(? Get(R, "sticky")).
-               var sticky = ToBoolean(Get(R, 'sticky'));
+}

 
 

-               // 21.2.5.3.13 If sticky is true, append the code unit 0x0079 (LATIN SMALL LETTER Y) as the last code unit of result.
-               if (sticky) {
-                       result += 'y';
-               }
+if (!("Symbol"in this&&"iterator"in this.Symbol&&!!Array.prototype[Symbol.iterator]
+)) {

 
 

-               // 21.2.5.3.14 Return result.
-               return result;
-       }
-});
+// Array.prototype.@@iterator
+/* global Symbol, CreateMethodProperty */
+// 22.1.3.31. Array.prototype [ @@iterator ] ( )
+// The initial value of the @@iterator property is the same function object as the initial value of the  Array.prototype.values property.
+CreateMethodProperty(Array.prototype, Symbol.iterator, Array.prototype.values);

 
 }
 
 
 }
 


@@ -5909,7 +6254,8 @@ var StringIterator = (function() { // eslint-disable-line no-unused-vars
 
        return StringIterator;
 }());
 
        return StringIterator;
 }());

-if (!('Symbol' in this && 'iterator' in this.Symbol && !!String.prototype[Symbol.iterator])) {
+if (!("Symbol"in this&&"iterator"in this.Symbol&&!!String.prototype[Symbol.iterator]
+)) {

 
 // String.prototype.@@iterator
 /* global CreateMethodProperty, RequireObjectCoercible, ToString, StringIterator, Symbol */
 
 // String.prototype.@@iterator
 /* global CreateMethodProperty, RequireObjectCoercible, ToString, StringIterator, Symbol */


@@ -5926,225 +6272,8 @@ CreateMethodProperty(String.prototype, Symbol.iterator, function () {
 
 }
 
 
 }
 

-
-// _ESAbstract.UTF16Decode
-// 10.1.2. Static Semantics: UTF16Decode( lead, trail )
-function UTF16Decode(lead, trail) { // eslint-disable-line no-unused-vars
-       // 1. Assert: 0xD800 ≤ lead ≤ 0xDBFF and 0xDC00 ≤ trail ≤ 0xDFFF.
-       // 2. Let cp be (lead - 0xD800) × 0x400 + (trail - 0xDC00) + 0x10000.
-       var cp = (lead - 0xD800) * 0x400 + (trail - 0xDC00) + 0x10000;
-       // 3. Return the code point cp.
-       return cp;
-}
-if (!('codePointAt' in String.prototype)) {
-
-// String.prototype.codePointAt
-/* global CreateMethodProperty, RequireObjectCoercible, ToInteger, ToString, UTF16Decode */
-// 21.1.3.3. String.prototype.codePointAt ( pos )
-CreateMethodProperty(String.prototype, 'codePointAt', function codePointAt(pos) {
-       // 1. Let O be ? RequireObjectCoercible(this value).
-       var O = RequireObjectCoercible(this);
-       // 2. Let S be ? ToString(O).
-       var S = ToString(O);
-       // 3. Let position be ? ToInteger(pos).
-       var position = ToInteger(pos);
-       // 4. Let size be the length of S.
-       var size = S.length;
-       // 5. If position < 0 or position ≥ size, return undefined.
-       if (position < 0 || position >= size) {
-               return undefined;
-       }
-       // 6. Let first be the numeric value of the code unit at index position within the String S.
-       var first = String.prototype.charCodeAt.call(S, position);
-       // 7. If first < 0xD800 or first > 0xDBFF or position+1 = size, return first.
-       if (first < 0xD800 || first > 0xDBFF || position + 1 === size) {
-               return first;
-       }
-       // 8. Let second be the numeric value of the code unit at index position+1 within the String S.
-       var second = String.prototype.charCodeAt.call(S, position + 1);
-       // 9. If second < 0xDC00 or second > 0xDFFF, return first.
-       if (second < 0xDC00 || second > 0xDFFF) {
-               return first;
-       }
-       // 10. Return UTF16Decode(first, second).
-       // 21.1.3.3.10 Return UTF16Decode(first, second).
-       return UTF16Decode(first, second);
-});
-
-}
-
-if (!('endsWith' in String.prototype)) {
-
-// String.prototype.endsWith
-/* global CreateMethodProperty, IsRegExp, RequireObjectCoercible, ToInteger, ToString */
-// 21.1.3.6. String.prototype.endsWith ( searchString [ , endPosition ] )
-CreateMethodProperty(String.prototype, 'endsWith', function endsWith(searchString /* [ , endPosition ] */) {
-       'use strict';
-       var endPosition = arguments.length > 1 ? arguments[1] : undefined;
-       // 1. Let O be ? RequireObjectCoercible(this value).
-       var O = RequireObjectCoercible(this);
-       // 2. Let S be ? ToString(O).
-       var S = ToString(O);
-       // 3. Let isRegExp be ? IsRegExp(searchString).
-       var isRegExp = IsRegExp(searchString);
-       // 4. If isRegExp is true, throw a TypeError exception.
-       if (isRegExp) {
-               throw new TypeError('First argument to String.prototype.endsWith must not be a regular expression');
-       }
-       // 5. Let searchStr be ? ToString(searchString).
-       var searchStr = ToString(searchString);
-       // 6. Let len be the length of S.
-       var len = S.length;
-       // 7. If endPosition is undefined, let pos be len, else let pos be ? ToInteger(endPosition).
-       var pos = endPosition === undefined ? len : ToInteger(endPosition);
-       // 8. Let end be min(max(pos, 0), len).
-       var end = Math.min(Math.max(pos, 0), len);
-       // 9. Let searchLength be the length of searchStr.
-       var searchLength = searchStr.length;
-       // 10. Let start be end - searchLength.
-       var start = end - searchLength;
-       // 11. If start is less than 0, return false.
-       if (start < 0) {
-               return false;
-       }
-       // 12. If the sequence of elements of S starting at start of length searchLength is the same as the full element sequence of searchStr, return true.
-       if (S.substr(start, searchLength) === searchStr) {
-               return true;
-        }
-       // 13. Otherwise, return false.
-       return false;
-});
-
-}
-
-if (!('repeat' in String.prototype)) {
-
-// String.prototype.repeat
-/* global CreateMethodProperty, RequireObjectCoercible, ToInteger, ToString */
-// 21.1.3.15String.prototype.repeat ( count )
-CreateMethodProperty(String.prototype, 'repeat', function repeat(count) {
-       'use strict';
-       // 1. Let O be ? RequireObjectCoercible(this value).
-       var O = RequireObjectCoercible(this);
-       // 2. Let S be ? ToString(O).
-       var S = ToString(O);
-       // 3. Let n be ? ToInteger(count).
-       var n = ToInteger(count);
-       // 4. If n < 0, throw a RangeError exception.
-       if (n < 0) {
-               throw new RangeError('Invalid count value');
-       }
-       // 5. If n is +∞, throw a RangeError exception.
-       if (n === Infinity) {
-               throw new RangeError('Invalid count value');
-       }
-       // 6. Let T be the String value that is made from n copies of S appended together. If n is 0, T is the empty String.
-       var T = n === 0 ? '' : new Array(n + 1).join(S);
-       // 7. Return T.
-       return T;
-});
-
-}
-
-if (!('startsWith' in String.prototype)) {
-
-// String.prototype.startsWith
-/* global CreateMethodProperty, IsRegExp, RequireObjectCoercible, ToInteger, ToString */
-// 21.1.3.20. String.prototype.startsWith ( searchString [ , position ] )
-CreateMethodProperty(String.prototype, 'startsWith', function startsWith(searchString /* [ , position ] */) {
-       'use strict';
-       var position = arguments.length > 1 ? arguments[1] : undefined;
-       // 1. Let O be ? RequireObjectCoercible(this value).
-       var O = RequireObjectCoercible(this);
-       // 2. Let S be ? ToString(O).
-       var S = ToString(O);
-       // 3. Let isRegExp be ? IsRegExp(searchString).
-       var isRegExp = IsRegExp(searchString);
-       // 4. If isRegExp is true, throw a TypeError exception.
-       if (isRegExp) {
-               throw new TypeError('First argument to String.prototype.startsWith must not be a regular expression');
-       }
-       // 5. Let searchStr be ? ToString(searchString).
-       var searchStr = ToString(searchString);
-       // 6. Let pos be ? ToInteger(position). (If position is undefined, this step produces the value 0.)
-       var pos = ToInteger(position);
-       // 7. Let len be the length of S.
-       var len = S.length;
-       // 8. Let start be min(max(pos, 0), len).
-       var start = Math.min(Math.max(pos, 0), len);
-       // 9. Let searchLength be the length of searchStr.
-       var searchLength = searchStr.length;
-       // 10. If searchLength+start is greater than len, return false.
-       if (searchLength + start > len) {
-               return false;
-       }
-       // 11. If the sequence of elements of S starting at start of length searchLength is the same as the full element sequence of searchStr, return true.
-       if (S.substr(start).indexOf(searchString) === 0) {
-               return true;
-       }
-       // 12. Otherwise, return false.
-       return false;
-});
-
-}
-
-if (!('Symbol' in this && 'hasInstance' in this.Symbol)) {
-
-// Symbol.hasInstance
-/* global Symbol */
-Object.defineProperty(Symbol, 'hasInstance', { value: Symbol('hasInstance') });
-
-}
-
-if (!('Symbol' in this && 'isConcatSpreadable' in this.Symbol)) {
-
-// Symbol.isConcatSpreadable
-/* global Symbol */
-Object.defineProperty(Symbol, 'isConcatSpreadable', { value: Symbol('isConcatSpreadable') });
-
-}
-
-if (!('Symbol' in this && 'match' in this.Symbol)) {
-
-// Symbol.match
-/* global Symbol */
-Object.defineProperty(Symbol, 'match', { value: Symbol('match') });
-
-}
-
-if (!('Symbol' in this && 'replace' in this.Symbol)) {
-
-// Symbol.replace
-/* global Symbol */
-Object.defineProperty(Symbol, 'replace', { value: Symbol('replace') });
-
-}
-
-if (!('Symbol' in this && 'search' in this.Symbol)) {
-
-// Symbol.search
-/* global Symbol */
-Object.defineProperty(Symbol, 'search', { value: Symbol('search') });
-
-}
-
-if (!('Symbol' in this && 'split' in this.Symbol)) {
-
-// Symbol.split
-/* global Symbol */
-Object.defineProperty(Symbol, 'split', { value: Symbol('split') });
-
-}
-
-if (!('Symbol' in this && 'toPrimitive' in this.Symbol)) {
-
-// Symbol.toPrimitive
-/* global Symbol */
-Object.defineProperty(Symbol, 'toPrimitive', { value: Symbol('toPrimitive') });
-
-}
-
-if (!('Symbol' in this && 'unscopables' in this.Symbol)) {
+if (!("Symbol"in this&&"unscopables"in this.Symbol
+)) {

 
 // Symbol.unscopables
 /* global Symbol */
 
 // Symbol.unscopables
 /* global Symbol */


@@ -6152,19 +6281,9 @@ Object.defineProperty(Symbol, 'unscopables', { value: Symbol('unscopables') });
 
 }
 
 
 }
 

-if (!((function(global) {
-       try {
-               if ("WeakMap" in global && WeakMap.length === 0) {
-                       var o = {};
-                       var wm = new WeakMap([[o, 'test']]);
-                       return (wm.get(o) === 'test' && wm["delete"](0) === false);
-               } else {
-                       return false;
-               }
-       } catch (err) {
-               return false;
-       }
-}(this)))) {
+if (!((function(e){try{if("WeakMap"in e&&0===WeakMap.length){var t={},a=new WeakMap([[t,"test"]])
+return"test"===a.get(t)&&!1===a["delete"](0)}return!1}catch(n){return!1}})(this)
+)) {

 
 // WeakMap
 /* globals Symbol, OrdinaryCreateFromConstructor, IsCallable, GetIterator, IteratorStep, IteratorValue, IteratorClose, Get, Call, CreateMethodProperty, Type, SameValue */
 
 // WeakMap
 /* globals Symbol, OrdinaryCreateFromConstructor, IsCallable, GetIterator, IteratorStep, IteratorValue, IteratorClose, Get, Call, CreateMethodProperty, Type, SameValue */


@@ -6433,19 +6552,9 @@ if (!((function(global) {
 
 }
 
 
 }
 

-if (!((function(global) {
-       try {
-               if ("WeakSet" in global && WeakSet.length === 0) {
-                       var o = {};
-                       var ws = new WeakSet([o]);
-                       return (ws.has(o) && ws["delete"](0) === false);
-               } else {
-                       return false;
-               }
-       } catch (err) {
-               return false;
-       }
-}(this)))) {
+if (!((function(e){try{if("WeakSet"in e&&0===WeakSet.length){var t={},n=new WeakSet([t])
+return n.has(t)&&!1===n["delete"](0)}return!1}catch(r){return!1}})(this)
+)) {

 
 // WeakSet
 /* global Call, CreateMethodProperty, Get, GetIterator, IsArray, IsCallable, IteratorClose, IteratorStep, IteratorValue, OrdinaryCreateFromConstructor, SameValueZero, Type, Symbol */
 
 // WeakSet
 /* global Call, CreateMethodProperty, Get, GetIterator, IsArray, IsCallable, IteratorClose, IteratorStep, IteratorValue, OrdinaryCreateFromConstructor, SameValueZero, Type, Symbol */