/*! * https://github.com/es-shims/es5-shim * @license es5-shim Copyright 2009-2020 by contributors, MIT License * see https://github.com/es-shims/es5-shim/blob/master/LICENSE */ // vim: ts=4 sts=4 sw=4 expandtab // Add semicolon to prevent IIFE from being passed as argument to concatenated code. ; // UMD (Universal Module Definition) // see https://github.com/umdjs/umd/blob/master/templates/returnExports.js (function (root, factory) { 'use strict'; /* global define */ if (typeof define === 'function' && define.amd) { // AMD. Register as an anonymous module. define(factory); } else if (typeof exports === 'object') { // Node. Does not work with strict CommonJS, but // only CommonJS-like enviroments that support module.exports, // like Node. module.exports = factory(); } else { // Browser globals (root is window) root.returnExports = factory(); // eslint-disable-line no-param-reassign } }(this, function () { /** * Brings an environment as close to ECMAScript 5 compliance * as is possible with the facilities of erstwhile engines. * * Annotated ES5: http://es5.github.com/ (specific links below) * ES5 Spec: http://www.ecma-international.org/publications/files/ECMA-ST/Ecma-262.pdf * Required reading: http://javascriptweblog.wordpress.com/2011/12/05/extending-javascript-natives/ */ // Shortcut to an often accessed properties, in order to avoid multiple // dereference that costs universally. This also holds a reference to known-good // functions. var $Array = Array; var ArrayPrototype = $Array.prototype; var $Object = Object; var ObjectPrototype = $Object.prototype; var $Function = Function; var FunctionPrototype = $Function.prototype; var $String = String; var StringPrototype = $String.prototype; var $Number = Number; var NumberPrototype = $Number.prototype; var array_slice = ArrayPrototype.slice; var array_splice = ArrayPrototype.splice; var array_push = ArrayPrototype.push; var array_unshift = ArrayPrototype.unshift; var array_concat = ArrayPrototype.concat; var array_join = ArrayPrototype.join; var call = FunctionPrototype.call; var apply = FunctionPrototype.apply; var max = Math.max; var min = Math.min; // Having a toString local variable name breaks in Opera so use to_string. var to_string = ObjectPrototype.toString; /* eslint-disable one-var-declaration-per-line, no-redeclare, max-statements-per-line */ var hasToStringTag = typeof Symbol === 'function' && typeof Symbol.toStringTag === 'symbol'; var isCallable; /* inlined from https://npmjs.com/is-callable */ var fnToStr = Function.prototype.toString, constructorRegex = /^\s*class /, isES6ClassFn = function isES6ClassFn(value) { try { var fnStr = fnToStr.call(value); var singleStripped = fnStr.replace(/\/\/.*\n/g, ''); var multiStripped = singleStripped.replace(/\/\*[.\s\S]*\*\//g, ''); var spaceStripped = multiStripped.replace(/\n/mg, ' ').replace(/ {2}/g, ' '); return constructorRegex.test(spaceStripped); } catch (e) { return false; /* not a function */ } }, tryFunctionObject = function tryFunctionObject(value) { try { if (isES6ClassFn(value)) { return false; } fnToStr.call(value); return true; } catch (e) { return false; } }, fnClass = '[object Function]', genClass = '[object GeneratorFunction]', isCallable = function isCallable(value) { if (!value) { return false; } if (typeof value !== 'function' && typeof value !== 'object') { return false; } if (hasToStringTag) { return tryFunctionObject(value); } if (isES6ClassFn(value)) { return false; } var strClass = to_string.call(value); return strClass === fnClass || strClass === genClass; }; var isRegex; /* inlined from https://npmjs.com/is-regex */ var regexExec = RegExp.prototype.exec, tryRegexExec = function tryRegexExec(value) { try { regexExec.call(value); return true; } catch (e) { return false; } }, regexClass = '[object RegExp]'; isRegex = function isRegex(value) { if (typeof value !== 'object') { return false; } return hasToStringTag ? tryRegexExec(value) : to_string.call(value) === regexClass; }; var isString; /* inlined from https://npmjs.com/is-string */ var strValue = String.prototype.valueOf, tryStringObject = function tryStringObject(value) { try { strValue.call(value); return true; } catch (e) { return false; } }, stringClass = '[object String]'; isString = function isString(value) { if (typeof value === 'string') { return true; } if (typeof value !== 'object') { return false; } return hasToStringTag ? tryStringObject(value) : to_string.call(value) === stringClass; }; /* eslint-enable one-var-declaration-per-line, no-redeclare, max-statements-per-line */ /* inlined from http://npmjs.com/define-properties */ var supportsDescriptors = $Object.defineProperty && (function () { try { var obj = {}; $Object.defineProperty(obj, 'x', { enumerable: false, value: obj }); // eslint-disable-next-line no-unreachable-loop, max-statements-per-line for (var _ in obj) { return false; } // jscs:ignore disallowUnusedVariables return obj.x === obj; } catch (e) { /* this is ES3 */ return false; } }()); var defineProperties = (function (has) { // Define configurable, writable, and non-enumerable props // if they don't exist. var defineProperty; if (supportsDescriptors) { defineProperty = function (object, name, method, forceAssign) { if (!forceAssign && (name in object)) { return; } $Object.defineProperty(object, name, { configurable: true, enumerable: false, writable: true, value: method }); }; } else { defineProperty = function (object, name, method, forceAssign) { if (!forceAssign && (name in object)) { return; } object[name] = method; // eslint-disable-line no-param-reassign }; } return function defineProperties(object, map, forceAssign) { for (var name in map) { if (has.call(map, name)) { defineProperty(object, name, map[name], forceAssign); } } }; }(ObjectPrototype.hasOwnProperty)); // // Util // ====== // /* replaceable with https://npmjs.com/package/es-abstract /helpers/isPrimitive */ var isPrimitive = function isPrimitive(input) { var type = typeof input; return input === null || (type !== 'object' && type !== 'function'); }; var isActualNaN = $Number.isNaN || function isActualNaN(x) { return x !== x; }; var ES = { // ES5 9.4 // http://es5.github.com/#x9.4 // http://jsperf.com/to-integer /* replaceable with https://npmjs.com/package/es-abstract ES5.ToInteger */ ToInteger: function ToInteger(num) { var n = +num; if (isActualNaN(n)) { n = 0; } else if (n !== 0 && n !== (1 / 0) && n !== -(1 / 0)) { n = (n > 0 || -1) * Math.floor(Math.abs(n)); } return n; }, /* replaceable with https://npmjs.com/package/es-abstract ES5.ToPrimitive */ ToPrimitive: function ToPrimitive(input) { var val, valueOf, toStr; if (isPrimitive(input)) { return input; } valueOf = input.valueOf; if (isCallable(valueOf)) { val = valueOf.call(input); if (isPrimitive(val)) { return val; } } toStr = input.toString; if (isCallable(toStr)) { val = toStr.call(input); if (isPrimitive(val)) { return val; } } throw new TypeError(); }, // ES5 9.9 // http://es5.github.com/#x9.9 /* replaceable with https://npmjs.com/package/es-abstract ES5.ToObject */ ToObject: function (o) { if (o == null) { // this matches both null and undefined throw new TypeError("can't convert " + o + ' to object'); } return $Object(o); }, /* replaceable with https://npmjs.com/package/es-abstract ES5.ToUint32 */ ToUint32: function ToUint32(x) { return x >>> 0; } }; // // Function // ======== // // ES-5 15.3.4.5 // http://es5.github.com/#x15.3.4.5 var Empty = function Empty() {}; defineProperties(FunctionPrototype, { bind: function bind(that) { // .length is 1 // 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 () { 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 = apply.call( target, 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 apply.call( target, that, array_concat.call(args, array_slice.call(arguments)) ); } }; // 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. 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 (' + array_join.call(boundArgs, ',') + '){ return binder.apply(this, arguments); }')(binder); if (target.prototype) { Empty.prototype = target.prototype; bound.prototype = new Empty(); // Clean up dangling references. Empty.prototype = null; } // 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. // 22. Return F. return bound; } }); // _Please note: Shortcuts are defined after `Function.prototype.bind` as we // use it in defining shortcuts. var owns = call.bind(ObjectPrototype.hasOwnProperty); var toStr = call.bind(ObjectPrototype.toString); var arraySlice = call.bind(array_slice); var arraySliceApply = apply.bind(array_slice); /* globals document */ if (typeof document === 'object' && document && document.documentElement) { try { arraySlice(document.documentElement.childNodes); } catch (e) { var origArraySlice = arraySlice; var origArraySliceApply = arraySliceApply; arraySlice = function arraySliceIE(arr) { var r = []; var i = arr.length; while (i-- > 0) { r[i] = arr[i]; } return origArraySliceApply(r, origArraySlice(arguments, 1)); }; arraySliceApply = function arraySliceApplyIE(arr, args) { return origArraySliceApply(arraySlice(arr), args); }; } } var strSlice = call.bind(StringPrototype.slice); var strSplit = call.bind(StringPrototype.split); var strIndexOf = call.bind(StringPrototype.indexOf); var pushCall = call.bind(array_push); var isEnum = call.bind(ObjectPrototype.propertyIsEnumerable); var arraySort = call.bind(ArrayPrototype.sort); // // Array // ===== // var isArray = $Array.isArray || function isArray(obj) { return toStr(obj) === '[object Array]'; }; // ES5 15.4.4.12 // http://es5.github.com/#x15.4.4.13 // Return len+argCount. // [bugfix, ielt8] // IE < 8 bug: [].unshift(0) === undefined but should be "1" var hasUnshiftReturnValueBug = [].unshift(0) !== 1; defineProperties(ArrayPrototype, { unshift: function () { array_unshift.apply(this, arguments); return this.length; } }, hasUnshiftReturnValueBug); // ES5 15.4.3.2 // http://es5.github.com/#x15.4.3.2 // https://developer.mozilla.org/en/JavaScript/Reference/Global_Objects/Array/isArray defineProperties($Array, { isArray: isArray }); // The IsCallable() check in the Array functions // has been replaced with a strict check on the // internal class of the object to trap cases where // the provided function was actually a regular // expression literal, which in V8 and // JavaScriptCore is a typeof "function". Only in // V8 are regular expression literals permitted as // reduce parameters, so it is desirable in the // general case for the shim to match the more // strict and common behavior of rejecting regular // expressions. // ES5 15.4.4.18 // http://es5.github.com/#x15.4.4.18 // https://developer.mozilla.org/en/JavaScript/Reference/Global_Objects/array/forEach // Check failure of by-index access of string characters (IE < 9) // and failure of `0 in boxedString` (Rhino) var boxedString = $Object('a'); var splitString = boxedString[0] !== 'a' || !(0 in boxedString); var properlyBoxesContext = function properlyBoxed(method) { // Check node 0.6.21 bug where third parameter is not boxed var properlyBoxesNonStrict = true; var properlyBoxesStrict = true; var threwException = false; if (method) { try { method.call('foo', function (_, __, context) { if (typeof context !== 'object') { properlyBoxesNonStrict = false; } }); method.call([1], function () { 'use strict'; properlyBoxesStrict = typeof this === 'string'; }, 'x'); } catch (e) { threwException = true; } } return !!method && !threwException && properlyBoxesNonStrict && properlyBoxesStrict; }; defineProperties(ArrayPrototype, { forEach: function forEach(callbackfn/*, thisArg*/) { var object = ES.ToObject(this); var self = splitString && isString(this) ? strSplit(this, '') : object; var i = -1; var length = ES.ToUint32(self.length); var T; if (arguments.length > 1) { T = arguments[1]; } // If no callback function or if callback is not a callable function if (!isCallable(callbackfn)) { throw new TypeError('Array.prototype.forEach callback must be a function'); } while (++i < length) { if (i in self) { // Invoke the callback function with call, passing arguments: // context, property value, property key, thisArg object if (typeof T === 'undefined') { callbackfn(self[i], i, object); } else { callbackfn.call(T, self[i], i, object); } } } } }, !properlyBoxesContext(ArrayPrototype.forEach)); // ES5 15.4.4.19 // http://es5.github.com/#x15.4.4.19 // https://developer.mozilla.org/en/Core_JavaScript_1.5_Reference/Objects/Array/map defineProperties(ArrayPrototype, { map: function map(callbackfn/*, thisArg*/) { var object = ES.ToObject(this); var self = splitString && isString(this) ? strSplit(this, '') : object; var length = ES.ToUint32(self.length); var result = $Array(length); var T; if (arguments.length > 1) { T = arguments[1]; } // If no callback function or if callback is not a callable function if (!isCallable(callbackfn)) { throw new TypeError('Array.prototype.map callback must be a function'); } for (var i = 0; i < length; i++) { if (i in self) { if (typeof T === 'undefined') { result[i] = callbackfn(self[i], i, object); } else { result[i] = callbackfn.call(T, self[i], i, object); } } } return result; } }, !properlyBoxesContext(ArrayPrototype.map)); // ES5 15.4.4.20 // http://es5.github.com/#x15.4.4.20 // https://developer.mozilla.org/en/Core_JavaScript_1.5_Reference/Objects/Array/filter defineProperties(ArrayPrototype, { filter: function filter(callbackfn/*, thisArg*/) { var object = ES.ToObject(this); var self = splitString && isString(this) ? strSplit(this, '') : object; var length = ES.ToUint32(self.length); var result = []; var value; var T; if (arguments.length > 1) { T = arguments[1]; } // If no callback function or if callback is not a callable function if (!isCallable(callbackfn)) { throw new TypeError('Array.prototype.filter callback must be a function'); } for (var i = 0; i < length; i++) { if (i in self) { value = self[i]; if (typeof T === 'undefined' ? callbackfn(value, i, object) : callbackfn.call(T, value, i, object)) { pushCall(result, value); } } } return result; } }, !properlyBoxesContext(ArrayPrototype.filter)); // ES5 15.4.4.16 // http://es5.github.com/#x15.4.4.16 // https://developer.mozilla.org/en/JavaScript/Reference/Global_Objects/Array/every defineProperties(ArrayPrototype, { every: function every(callbackfn/*, thisArg*/) { var object = ES.ToObject(this); var self = splitString && isString(this) ? strSplit(this, '') : object; var length = ES.ToUint32(self.length); var T; if (arguments.length > 1) { T = arguments[1]; } // If no callback function or if callback is not a callable function if (!isCallable(callbackfn)) { throw new TypeError('Array.prototype.every callback must be a function'); } for (var i = 0; i < length; i++) { if (i in self && !(typeof T === 'undefined' ? callbackfn(self[i], i, object) : callbackfn.call(T, self[i], i, object))) { return false; } } return true; } }, !properlyBoxesContext(ArrayPrototype.every)); // ES5 15.4.4.17 // http://es5.github.com/#x15.4.4.17 // https://developer.mozilla.org/en/JavaScript/Reference/Global_Objects/Array/some defineProperties(ArrayPrototype, { some: function some(callbackfn/*, thisArg */) { var object = ES.ToObject(this); var self = splitString && isString(this) ? strSplit(this, '') : object; var length = ES.ToUint32(self.length); var T; if (arguments.length > 1) { T = arguments[1]; } // If no callback function or if callback is not a callable function if (!isCallable(callbackfn)) { throw new TypeError('Array.prototype.some callback must be a function'); } for (var i = 0; i < length; i++) { if (i in self && (typeof T === 'undefined' ? callbackfn(self[i], i, object) : callbackfn.call(T, self[i], i, object))) { return true; } } return false; } }, !properlyBoxesContext(ArrayPrototype.some)); // ES5 15.4.4.21 // http://es5.github.com/#x15.4.4.21 // https://developer.mozilla.org/en/Core_JavaScript_1.5_Reference/Objects/Array/reduce var reduceCoercesToObject = false; if (ArrayPrototype.reduce) { reduceCoercesToObject = typeof ArrayPrototype.reduce.call('es5', function (_, __, ___, list) { return list; }) === 'object'; } defineProperties(ArrayPrototype, { reduce: function reduce(callbackfn/*, initialValue*/) { var object = ES.ToObject(this); var self = splitString && isString(this) ? strSplit(this, '') : object; var length = ES.ToUint32(self.length); // If no callback function or if callback is not a callable function if (!isCallable(callbackfn)) { throw new TypeError('Array.prototype.reduce callback must be a function'); } // no value to return if no initial value and an empty array if (length === 0 && arguments.length === 1) { throw new TypeError('reduce of empty array with no initial value'); } var i = 0; var result; if (arguments.length >= 2) { result = arguments[1]; } else { do { if (i in self) { result = self[i++]; break; } // if array contains no values, no initial value to return if (++i >= length) { throw new TypeError('reduce of empty array with no initial value'); } } while (true); } for (; i < length; i++) { if (i in self) { result = callbackfn(result, self[i], i, object); } } return result; } }, !reduceCoercesToObject); // ES5 15.4.4.22 // http://es5.github.com/#x15.4.4.22 // https://developer.mozilla.org/en/Core_JavaScript_1.5_Reference/Objects/Array/reduceRight var reduceRightCoercesToObject = false; if (ArrayPrototype.reduceRight) { reduceRightCoercesToObject = typeof ArrayPrototype.reduceRight.call('es5', function (_, __, ___, list) { return list; }) === 'object'; } defineProperties(ArrayPrototype, { reduceRight: function reduceRight(callbackfn/*, initial*/) { var object = ES.ToObject(this); var self = splitString && isString(this) ? strSplit(this, '') : object; var length = ES.ToUint32(self.length); // If no callback function or if callback is not a callable function if (!isCallable(callbackfn)) { throw new TypeError('Array.prototype.reduceRight callback must be a function'); } // no value to return if no initial value, empty array if (length === 0 && arguments.length === 1) { throw new TypeError('reduceRight of empty array with no initial value'); } var result; var i = length - 1; if (arguments.length >= 2) { result = arguments[1]; } else { do { if (i in self) { result = self[i--]; break; } // if array contains no values, no initial value to return if (--i < 0) { throw new TypeError('reduceRight of empty array with no initial value'); } } while (true); } if (i < 0) { return result; } do { if (i in self) { result = callbackfn(result, self[i], i, object); } } while (i--); return result; } }, !reduceRightCoercesToObject); // ES5 15.4.4.14 // http://es5.github.com/#x15.4.4.14 // https://developer.mozilla.org/en/JavaScript/Reference/Global_Objects/Array/indexOf var hasFirefox2IndexOfBug = ArrayPrototype.indexOf && [0, 1].indexOf(1, 2) !== -1; defineProperties(ArrayPrototype, { indexOf: function indexOf(searchElement/*, fromIndex */) { var self = splitString && isString(this) ? strSplit(this, '') : ES.ToObject(this); var length = ES.ToUint32(self.length); if (length === 0) { return -1; } var i = 0; if (arguments.length > 1) { i = ES.ToInteger(arguments[1]); } // handle negative indices i = i >= 0 ? i : max(0, length + i); for (; i < length; i++) { if (i in self && self[i] === searchElement) { return i; } } return -1; } }, hasFirefox2IndexOfBug); // ES5 15.4.4.15 // http://es5.github.com/#x15.4.4.15 // https://developer.mozilla.org/en/JavaScript/Reference/Global_Objects/Array/lastIndexOf var hasFirefox2LastIndexOfBug = ArrayPrototype.lastIndexOf && [0, 1].lastIndexOf(0, -3) !== -1; defineProperties(ArrayPrototype, { lastIndexOf: function lastIndexOf(searchElement/*, fromIndex */) { var self = splitString && isString(this) ? strSplit(this, '') : ES.ToObject(this); var length = ES.ToUint32(self.length); if (length === 0) { return -1; } var i = length - 1; if (arguments.length > 1) { i = min(i, ES.ToInteger(arguments[1])); } // handle negative indices i = i >= 0 ? i : length - Math.abs(i); for (; i >= 0; i--) { if (i in self && searchElement === self[i]) { return i; } } return -1; } }, hasFirefox2LastIndexOfBug); // ES5 15.4.4.12 // http://es5.github.com/#x15.4.4.12 var spliceNoopReturnsEmptyArray = (function () { var a = [1, 2]; var result = a.splice(); return a.length === 2 && isArray(result) && result.length === 0; }()); defineProperties(ArrayPrototype, { // Safari 5.0 bug where .splice() returns undefined splice: function splice(start, deleteCount) { if (arguments.length === 0) { return []; } else { return array_splice.apply(this, arguments); } } }, !spliceNoopReturnsEmptyArray); var spliceWorksWithEmptyObject = (function () { var obj = {}; ArrayPrototype.splice.call(obj, 0, 0, 1); return obj.length === 1; }()); defineProperties(ArrayPrototype, { splice: function splice(start, deleteCount) { if (arguments.length === 0) { return []; } var args = arguments; this.length = max(ES.ToInteger(this.length), 0); if (arguments.length > 0 && typeof deleteCount !== 'number') { args = arraySlice(arguments); if (args.length < 2) { pushCall(args, this.length - start); } else { args[1] = ES.ToInteger(deleteCount); } } return array_splice.apply(this, args); } }, !spliceWorksWithEmptyObject); var spliceWorksWithLargeSparseArrays = (function () { // Per https://github.com/es-shims/es5-shim/issues/295 // Safari 7/8 breaks with sparse arrays of size 1e5 or greater var arr = new $Array(1e5); // note: the index MUST be 8 or larger or the test will false pass arr[8] = 'x'; arr.splice(1, 1); // note: this test must be defined *after* the indexOf shim // per https://github.com/es-shims/es5-shim/issues/313 return arr.indexOf('x') === 7; }()); var spliceWorksWithSmallSparseArrays = (function () { // Per https://github.com/es-shims/es5-shim/issues/295 // Opera 12.15 breaks on this, no idea why. var n = 256; var arr = []; arr[n] = 'a'; arr.splice(n + 1, 0, 'b'); return arr[n] === 'a'; }()); defineProperties(ArrayPrototype, { splice: function splice(start, deleteCount) { var O = ES.ToObject(this); var A = []; var len = ES.ToUint32(O.length); var relativeStart = ES.ToInteger(start); var actualStart = relativeStart < 0 ? max((len + relativeStart), 0) : min(relativeStart, len); var actualDeleteCount = arguments.length === 0 ? 0 : arguments.length === 1 ? len - actualStart : min(max(ES.ToInteger(deleteCount), 0), len - actualStart); var k = 0; var from; while (k < actualDeleteCount) { from = $String(actualStart + k); if (owns(O, from)) { A[k] = O[from]; } k += 1; } var items = arraySlice(arguments, 2); var itemCount = items.length; var to; if (itemCount < actualDeleteCount) { k = actualStart; var maxK = len - actualDeleteCount; while (k < maxK) { from = $String(k + actualDeleteCount); to = $String(k + itemCount); if (owns(O, from)) { O[to] = O[from]; } else { delete O[to]; } k += 1; } k = len; var minK = len - actualDeleteCount + itemCount; while (k > minK) { delete O[k - 1]; k -= 1; } } else if (itemCount > actualDeleteCount) { k = len - actualDeleteCount; while (k > actualStart) { from = $String(k + actualDeleteCount - 1); to = $String(k + itemCount - 1); if (owns(O, from)) { O[to] = O[from]; } else { delete O[to]; } k -= 1; } } k = actualStart; for (var i = 0; i < items.length; ++i) { O[k] = items[i]; k += 1; } O.length = len - actualDeleteCount + itemCount; return A; } }, !spliceWorksWithLargeSparseArrays || !spliceWorksWithSmallSparseArrays); var originalJoin = ArrayPrototype.join; var hasStringJoinBug; try { hasStringJoinBug = Array.prototype.join.call('123', ',') !== '1,2,3'; } catch (e) { hasStringJoinBug = true; } if (hasStringJoinBug) { defineProperties(ArrayPrototype, { join: function join(separator) { var sep = typeof separator === 'undefined' ? ',' : separator; return originalJoin.call(isString(this) ? strSplit(this, '') : this, sep); } }, hasStringJoinBug); } var hasJoinUndefinedBug = [1, 2].join(undefined) !== '1,2'; if (hasJoinUndefinedBug) { defineProperties(ArrayPrototype, { join: function join(separator) { var sep = typeof separator === 'undefined' ? ',' : separator; return originalJoin.call(this, sep); } }, hasJoinUndefinedBug); } var pushShim = function push(item) { var O = ES.ToObject(this); var n = ES.ToUint32(O.length); var i = 0; while (i < arguments.length) { O[n + i] = arguments[i]; i += 1; } O.length = n + i; return n + i; }; var pushIsNotGeneric = (function () { var obj = {}; var result = Array.prototype.push.call(obj, undefined); return result !== 1 || obj.length !== 1 || typeof obj[0] !== 'undefined' || !owns(obj, 0); }()); defineProperties(ArrayPrototype, { push: function push(item) { if (isArray(this)) { return array_push.apply(this, arguments); } return pushShim.apply(this, arguments); } }, pushIsNotGeneric); // This fixes a very weird bug in Opera 10.6 when pushing `undefined var pushUndefinedIsWeird = (function () { var arr = []; var result = arr.push(undefined); return result !== 1 || arr.length !== 1 || typeof arr[0] !== 'undefined' || !owns(arr, 0); }()); defineProperties(ArrayPrototype, { push: pushShim }, pushUndefinedIsWeird); // ES5 15.2.3.14 // http://es5.github.io/#x15.4.4.10 // Fix boxed string bug defineProperties(ArrayPrototype, { slice: function (start, end) { var arr = isString(this) ? strSplit(this, '') : this; return arraySliceApply(arr, arguments); } }, splitString); var sortIgnoresNonFunctions = (function () { try { [1, 2].sort(null); } catch (e) { try { [1, 2].sort({}); } catch (e2) { return false; } } return true; }()); var sortThrowsOnRegex = (function () { // this is a problem in Firefox 4, in which `typeof /a/ === 'function'` try { [1, 2].sort(/a/); return false; } catch (e) {} return true; }()); var sortIgnoresUndefined = (function () { // applies in IE 8, for one. try { [1, 2].sort(undefined); return true; } catch (e) {} return false; }()); defineProperties(ArrayPrototype, { sort: function sort(compareFn) { if (typeof compareFn === 'undefined') { return arraySort(this); } if (!isCallable(compareFn)) { throw new TypeError('Array.prototype.sort callback must be a function'); } return arraySort(this, compareFn); } }, sortIgnoresNonFunctions || !sortIgnoresUndefined || !sortThrowsOnRegex); // // Object // ====== // // ES5 15.2.3.14 // http://es5.github.com/#x15.2.3.14 // http://whattheheadsaid.com/2010/10/a-safer-object-keys-compatibility-implementation var hasDontEnumBug = !isEnum({ 'toString': null }, 'toString'); // jscs:ignore disallowQuotedKeysInObjects var hasProtoEnumBug = isEnum(function () {}, 'prototype'); var hasStringEnumBug = !owns('x', '0'); var equalsConstructorPrototype = function (o) { var ctor = o.constructor; return ctor && ctor.prototype === o; }; var excludedKeys = { $applicationCache: true, $console: true, $external: true, $frame: true, $frameElement: true, $frames: true, $innerHeight: true, $innerWidth: true, $onmozfullscreenchange: true, $onmozfullscreenerror: 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, $width: true, $height: true, $top: true, $localStorage: true }; var hasAutomationEqualityBug = (function () { /* globals window */ if (typeof window === 'undefined') { return false; } for (var k in window) { try { if (!excludedKeys['$' + k] && owns(window, k) && window[k] !== null && typeof window[k] === 'object') { equalsConstructorPrototype(window[k]); } } catch (e) { return true; } } return false; }()); var equalsConstructorPrototypeIfNotBuggy = function (object) { if (typeof window === 'undefined' || !hasAutomationEqualityBug) { return equalsConstructorPrototype(object); } try { return equalsConstructorPrototype(object); } catch (e) { return false; } }; var dontEnums = [ 'toString', 'toLocaleString', 'valueOf', 'hasOwnProperty', 'isPrototypeOf', 'propertyIsEnumerable', 'constructor' ]; var dontEnumsLength = dontEnums.length; // taken directly from https://github.com/ljharb/is-arguments/blob/master/index.js // can be replaced with require('is-arguments') if we ever use a build process instead var isStandardArguments = function isArguments(value) { return toStr(value) === '[object Arguments]'; }; var isLegacyArguments = function isArguments(value) { return value !== null && typeof value === 'object' && typeof value.length === 'number' && value.length >= 0 && !isArray(value) && isCallable(value.callee); }; var isArguments = isStandardArguments(arguments) ? isStandardArguments : isLegacyArguments; defineProperties($Object, { keys: function keys(object) { var isFn = isCallable(object); var isArgs = isArguments(object); var isObject = object !== null && typeof object === 'object'; var isStr = isObject && isString(object); if (!isObject && !isFn && !isArgs) { throw new TypeError('Object.keys called on a non-object'); } var theKeys = []; var skipProto = hasProtoEnumBug && isFn; if ((isStr && hasStringEnumBug) || isArgs) { for (var i = 0; i < object.length; ++i) { pushCall(theKeys, $String(i)); } } if (!isArgs) { for (var name in object) { if (!(skipProto && name === 'prototype') && owns(object, name)) { pushCall(theKeys, $String(name)); } } } if (hasDontEnumBug) { var skipConstructor = equalsConstructorPrototypeIfNotBuggy(object); for (var j = 0; j < dontEnumsLength; j++) { var dontEnum = dontEnums[j]; if (!(skipConstructor && dontEnum === 'constructor') && owns(object, dontEnum)) { pushCall(theKeys, dontEnum); } } } return theKeys; } }); var keysWorksWithArguments = $Object.keys && (function () { // Safari 5.0 bug return $Object.keys(arguments).length === 2; }(1, 2)); var keysHasArgumentsLengthBug = $Object.keys && (function () { var argKeys = $Object.keys(arguments); return arguments.length !== 1 || argKeys.length !== 1 || argKeys[0] !== 1; }(1)); var originalKeys = $Object.keys; defineProperties($Object, { keys: function keys(object) { if (isArguments(object)) { return originalKeys(arraySlice(object)); } else { return originalKeys(object); } } }, !keysWorksWithArguments || keysHasArgumentsLengthBug); // // Date // ==== // var hasNegativeMonthYearBug = new Date(-3509827329600292).getUTCMonth() !== 0; var aNegativeTestDate = new Date(-1509842289600292); var aPositiveTestDate = new Date(1449662400000); var hasToUTCStringFormatBug = aNegativeTestDate.toUTCString() !== 'Mon, 01 Jan -45875 11:59:59 GMT'; var hasToDateStringFormatBug; var hasToStringFormatBug; var timeZoneOffset = aNegativeTestDate.getTimezoneOffset(); if (timeZoneOffset < -720) { hasToDateStringFormatBug = aNegativeTestDate.toDateString() !== 'Tue Jan 02 -45875'; hasToStringFormatBug = !(/^Thu Dec 10 2015 \d\d:\d\d:\d\d GMT[-+]\d\d\d\d(?: |$)/).test(String(aPositiveTestDate)); } else { hasToDateStringFormatBug = aNegativeTestDate.toDateString() !== 'Mon Jan 01 -45875'; hasToStringFormatBug = !(/^Wed Dec 09 2015 \d\d:\d\d:\d\d GMT[-+]\d\d\d\d(?: |$)/).test(String(aPositiveTestDate)); } var originalGetFullYear = call.bind(Date.prototype.getFullYear); var originalGetMonth = call.bind(Date.prototype.getMonth); var originalGetDate = call.bind(Date.prototype.getDate); var originalGetUTCFullYear = call.bind(Date.prototype.getUTCFullYear); var originalGetUTCMonth = call.bind(Date.prototype.getUTCMonth); var originalGetUTCDate = call.bind(Date.prototype.getUTCDate); var originalGetUTCDay = call.bind(Date.prototype.getUTCDay); var originalGetUTCHours = call.bind(Date.prototype.getUTCHours); var originalGetUTCMinutes = call.bind(Date.prototype.getUTCMinutes); var originalGetUTCSeconds = call.bind(Date.prototype.getUTCSeconds); var originalGetUTCMilliseconds = call.bind(Date.prototype.getUTCMilliseconds); var dayName = ['Sun', 'Mon', 'Tue', 'Wed', 'Thu', 'Fri', 'Sat']; var monthName = ['Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun', 'Jul', 'Aug', 'Sep', 'Oct', 'Nov', 'Dec']; var daysInMonth = function daysInMonth(month, year) { return originalGetDate(new Date(year, month, 0)); }; defineProperties(Date.prototype, { getFullYear: function getFullYear() { if (!this || !(this instanceof Date)) { throw new TypeError('this is not a Date object.'); } var year = originalGetFullYear(this); if (year < 0 && originalGetMonth(this) > 11) { return year + 1; } return year; }, getMonth: function getMonth() { if (!this || !(this instanceof Date)) { throw new TypeError('this is not a Date object.'); } var year = originalGetFullYear(this); var month = originalGetMonth(this); if (year < 0 && month > 11) { return 0; } return month; }, getDate: function getDate() { if (!this || !(this instanceof Date)) { throw new TypeError('this is not a Date object.'); } var year = originalGetFullYear(this); var month = originalGetMonth(this); var date = originalGetDate(this); if (year < 0 && month > 11) { if (month === 12) { return date; } var days = daysInMonth(0, year + 1); return (days - date) + 1; } return date; }, getUTCFullYear: function getUTCFullYear() { if (!this || !(this instanceof Date)) { throw new TypeError('this is not a Date object.'); } var year = originalGetUTCFullYear(this); if (year < 0 && originalGetUTCMonth(this) > 11) { return year + 1; } return year; }, getUTCMonth: function getUTCMonth() { if (!this || !(this instanceof Date)) { throw new TypeError('this is not a Date object.'); } var year = originalGetUTCFullYear(this); var month = originalGetUTCMonth(this); if (year < 0 && month > 11) { return 0; } return month; }, getUTCDate: function getUTCDate() { if (!this || !(this instanceof Date)) { throw new TypeError('this is not a Date object.'); } var year = originalGetUTCFullYear(this); var month = originalGetUTCMonth(this); var date = originalGetUTCDate(this); if (year < 0 && month > 11) { if (month === 12) { return date; } var days = daysInMonth(0, year + 1); return (days - date) + 1; } return date; } }, hasNegativeMonthYearBug); defineProperties(Date.prototype, { toUTCString: function toUTCString() { if (!this || !(this instanceof Date)) { throw new TypeError('this is not a Date object.'); } var day = originalGetUTCDay(this); var date = originalGetUTCDate(this); var month = originalGetUTCMonth(this); var year = originalGetUTCFullYear(this); var hour = originalGetUTCHours(this); var minute = originalGetUTCMinutes(this); var second = originalGetUTCSeconds(this); return dayName[day] + ', ' + (date < 10 ? '0' + date : date) + ' ' + monthName[month] + ' ' + year + ' ' + (hour < 10 ? '0' + hour : hour) + ':' + (minute < 10 ? '0' + minute : minute) + ':' + (second < 10 ? '0' + second : second) + ' GMT'; } }, hasNegativeMonthYearBug || hasToUTCStringFormatBug); // Opera 12 has `,` defineProperties(Date.prototype, { toDateString: function toDateString() { if (!this || !(this instanceof Date)) { throw new TypeError('this is not a Date object.'); } var day = this.getDay(); var date = this.getDate(); var month = this.getMonth(); var year = this.getFullYear(); return dayName[day] + ' ' + monthName[month] + ' ' + (date < 10 ? '0' + date : date) + ' ' + year; } }, hasNegativeMonthYearBug || hasToDateStringFormatBug); // can't use defineProperties here because of toString enumeration issue in IE <= 8 if (hasNegativeMonthYearBug || hasToStringFormatBug) { Date.prototype.toString = function toString() { if (!this || !(this instanceof Date)) { throw new TypeError('this is not a Date object.'); } var day = this.getDay(); var date = this.getDate(); var month = this.getMonth(); var year = this.getFullYear(); var hour = this.getHours(); var minute = this.getMinutes(); var second = this.getSeconds(); var timezoneOffset = this.getTimezoneOffset(); var hoursOffset = Math.floor(Math.abs(timezoneOffset) / 60); var minutesOffset = Math.floor(Math.abs(timezoneOffset) % 60); return dayName[day] + ' ' + monthName[month] + ' ' + (date < 10 ? '0' + date : date) + ' ' + year + ' ' + (hour < 10 ? '0' + hour : hour) + ':' + (minute < 10 ? '0' + minute : minute) + ':' + (second < 10 ? '0' + second : second) + ' GMT' + (timezoneOffset > 0 ? '-' : '+') + (hoursOffset < 10 ? '0' + hoursOffset : hoursOffset) + (minutesOffset < 10 ? '0' + minutesOffset : minutesOffset); }; if (supportsDescriptors) { $Object.defineProperty(Date.prototype, 'toString', { configurable: true, enumerable: false, writable: true }); } } // ES5 15.9.5.43 // http://es5.github.com/#x15.9.5.43 // This function returns a String value represent the instance in time // represented by this Date object. The format of the String is the Date Time // string format defined in 15.9.1.15. All fields are present in the String. // The time zone is always UTC, denoted by the suffix Z. If the time value of // this object is not a finite Number a RangeError exception is thrown. var negativeDate = -62198755200000; var negativeYearString = '-000001'; var hasNegativeDateBug = Date.prototype.toISOString && new Date(negativeDate).toISOString().indexOf(negativeYearString) === -1; // eslint-disable-line max-len var hasSafari51DateBug = Date.prototype.toISOString && new Date(-1).toISOString() !== '1969-12-31T23:59:59.999Z'; var getTime = call.bind(Date.prototype.getTime); defineProperties(Date.prototype, { toISOString: function toISOString() { if (!isFinite(this) || !isFinite(getTime(this))) { // Adope Photoshop requires the second check. throw new RangeError('Date.prototype.toISOString called on non-finite value.'); } var year = originalGetUTCFullYear(this); var month = originalGetUTCMonth(this); // see https://github.com/es-shims/es5-shim/issues/111 year += Math.floor(month / 12); month = ((month % 12) + 12) % 12; // the date time string format is specified in 15.9.1.15. var result = [ month + 1, originalGetUTCDate(this), originalGetUTCHours(this), originalGetUTCMinutes(this), originalGetUTCSeconds(this) ]; year = ( (year < 0 ? '-' : (year > 9999 ? '+' : '')) + strSlice('00000' + Math.abs(year), (0 <= year && year <= 9999) ? -4 : -6) ); for (var i = 0; i < result.length; ++i) { // pad months, days, hours, minutes, and seconds to have two digits. result[i] = strSlice('00' + result[i], -2); } // pad milliseconds to have three digits. return ( year + '-' + arraySlice(result, 0, 2).join('-') + 'T' + arraySlice(result, 2).join(':') + '.' + strSlice('000' + originalGetUTCMilliseconds(this), -3) + 'Z' ); } }, hasNegativeDateBug || hasSafari51DateBug); // ES5 15.9.5.44 // http://es5.github.com/#x15.9.5.44 // This function provides a String representation of a Date object for use by // JSON.stringify (15.12.3). var dateToJSONIsSupported = (function () { try { return Date.prototype.toJSON && new Date(NaN).toJSON() === null && new Date(negativeDate).toJSON().indexOf(negativeYearString) !== -1 && Date.prototype.toJSON.call({ // generic toISOString: function () { return true; } }); } catch (e) { return false; } }()); if (!dateToJSONIsSupported) { Date.prototype.toJSON = function toJSON(key) { // When the toJSON method is called with argument key, the following // steps are taken: // 1. Let O be the result of calling ToObject, giving it the this // value as its argument. // 2. Let tv be ES.ToPrimitive(O, hint Number). var O = $Object(this); var tv = ES.ToPrimitive(O); // 3. If tv is a Number and is not finite, return null. if (typeof tv === 'number' && !isFinite(tv)) { return null; } // 4. Let toISO be the result of calling the [[Get]] internal method of // O with argument "toISOString". var toISO = O.toISOString; // 5. If IsCallable(toISO) is false, throw a TypeError exception. if (!isCallable(toISO)) { throw new TypeError('toISOString property is not callable'); } // 6. Return the result of calling the [[Call]] internal method of // toISO with O as the this value and an empty argument list. return toISO.call(O); // NOTE 1 The argument is ignored. // NOTE 2 The toJSON function is intentionally generic; it does not // require that its this value be a Date object. Therefore, it can be // transferred to other kinds of objects for use as a method. However, // it does require that any such object have a toISOString method. An // object is free to use the argument key to filter its // stringification. }; } // ES5 15.9.4.2 // http://es5.github.com/#x15.9.4.2 // based on work shared by Daniel Friesen (dantman) // http://gist.github.com/303249 var supportsExtendedYears = Date.parse('+033658-09-27T01:46:40.000Z') === 1e15; var acceptsInvalidDates = !isNaN(Date.parse('2012-04-04T24:00:00.500Z')) || !isNaN(Date.parse('2012-11-31T23:59:59.000Z')) || !isNaN(Date.parse('2012-12-31T23:59:60.000Z')); var doesNotParseY2KNewYear = isNaN(Date.parse('2000-01-01T00:00:00.000Z')); if (doesNotParseY2KNewYear || acceptsInvalidDates || !supportsExtendedYears) { // XXX global assignment won't work in embeddings that use // an alternate object for the context. var maxSafeUnsigned32Bit = Math.pow(2, 31) - 1; var hasSafariSignedIntBug = isActualNaN(new Date(1970, 0, 1, 0, 0, 0, maxSafeUnsigned32Bit + 1).getTime()); // eslint-disable-next-line no-implicit-globals, no-global-assign Date = (function (NativeDate) { // Date.length === 7 var DateShim = function Date(Y, M, D, h, m, s, ms) { var length = arguments.length; var date; if (this instanceof NativeDate) { var seconds = s; var millis = ms; if (hasSafariSignedIntBug && length >= 7 && ms > maxSafeUnsigned32Bit) { // work around a Safari 8/9 bug where it treats the seconds as signed var msToShift = Math.floor(ms / maxSafeUnsigned32Bit) * maxSafeUnsigned32Bit; var sToShift = Math.floor(msToShift / 1e3); seconds += sToShift; millis -= sToShift * 1e3; } date = length === 1 && $String(Y) === Y // isString(Y) // We explicitly pass it through parse: ? new NativeDate(DateShim.parse(Y)) // We have to manually make calls depending on argument // length here : length >= 7 ? new NativeDate(Y, M, D, h, m, seconds, millis) : length >= 6 ? new NativeDate(Y, M, D, h, m, seconds) : length >= 5 ? new NativeDate(Y, M, D, h, m) : length >= 4 ? new NativeDate(Y, M, D, h) : length >= 3 ? new NativeDate(Y, M, D) : length >= 2 ? new NativeDate(Y, M) : length >= 1 ? new NativeDate(Y instanceof NativeDate ? +Y : Y) : new NativeDate(); } else { date = NativeDate.apply(this, arguments); } if (!isPrimitive(date)) { // Prevent mixups with unfixed Date object defineProperties(date, { constructor: DateShim }, true); } return date; }; // 15.9.1.15 Date Time String Format. var isoDateExpression = new RegExp('^' + '(\\d{4}|[+-]\\d{6})' // four-digit year capture or sign + 6-digit extended year + '(?:-(\\d{2})' // optional month capture + '(?:-(\\d{2})' // optional day capture + '(?:' // capture hours:minutes:seconds.milliseconds + 'T(\\d{2})' // hours capture + ':(\\d{2})' // minutes capture + '(?:' // optional :seconds.milliseconds + ':(\\d{2})' // seconds capture + '(?:(\\.\\d{1,}))?' // milliseconds capture + ')?' + '(' // capture UTC offset component + 'Z|' // UTC capture + '(?:' // offset specifier +/-hours:minutes + '([-+])' // sign capture + '(\\d{2})' // hours offset capture + ':(\\d{2})' // minutes offset capture + ')' + ')?)?)?)?' + '$'); var months = [0, 31, 59, 90, 120, 151, 181, 212, 243, 273, 304, 334, 365]; var dayFromMonth = function dayFromMonth(year, month) { var t = month > 1 ? 1 : 0; return ( months[month] + Math.floor((year - 1969 + t) / 4) - Math.floor((year - 1901 + t) / 100) + Math.floor((year - 1601 + t) / 400) + (365 * (year - 1970)) ); }; var toUTC = function toUTC(t) { var s = 0; var ms = t; if (hasSafariSignedIntBug && ms > maxSafeUnsigned32Bit) { // work around a Safari 8/9 bug where it treats the seconds as signed var msToShift = Math.floor(ms / maxSafeUnsigned32Bit) * maxSafeUnsigned32Bit; var sToShift = Math.floor(msToShift / 1e3); s += sToShift; ms -= sToShift * 1e3; } return $Number(new NativeDate(1970, 0, 1, 0, 0, s, ms)); }; // Copy any custom methods a 3rd party library may have added for (var key in NativeDate) { if (owns(NativeDate, key)) { DateShim[key] = NativeDate[key]; } } // Copy "native" methods explicitly; they may be non-enumerable defineProperties(DateShim, { now: NativeDate.now, UTC: NativeDate.UTC }, true); DateShim.prototype = NativeDate.prototype; defineProperties(DateShim.prototype, { constructor: DateShim }, true); // Upgrade Date.parse to handle simplified ISO 8601 strings var parseShim = function parse(string) { var match = isoDateExpression.exec(string); if (match) { // parse months, days, hours, minutes, seconds, and milliseconds // provide default values if necessary // parse the UTC offset component var year = $Number(match[1]), month = $Number(match[2] || 1) - 1, day = $Number(match[3] || 1) - 1, hour = $Number(match[4] || 0), minute = $Number(match[5] || 0), second = $Number(match[6] || 0), millisecond = Math.floor($Number(match[7] || 0) * 1000), // When time zone is missed, local offset should be used // (ES 5.1 bug) // see https://bugs.ecmascript.org/show_bug.cgi?id=112 isLocalTime = Boolean(match[4] && !match[8]), signOffset = match[9] === '-' ? 1 : -1, hourOffset = $Number(match[10] || 0), minuteOffset = $Number(match[11] || 0), result; var hasMinutesOrSecondsOrMilliseconds = minute > 0 || second > 0 || millisecond > 0; if ( hour < (hasMinutesOrSecondsOrMilliseconds ? 24 : 25) && minute < 60 && second < 60 && millisecond < 1000 && month > -1 && month < 12 && hourOffset < 24 && minuteOffset < 60 // detect invalid offsets && day > -1 && day < (dayFromMonth(year, month + 1) - dayFromMonth(year, month)) ) { result = ( ((dayFromMonth(year, month) + day) * 24) + hour + (hourOffset * signOffset) ) * 60; result = (( ((result + minute + (minuteOffset * signOffset)) * 60) + second ) * 1000) + millisecond; if (isLocalTime) { result = toUTC(result); } if (-8.64e15 <= result && result <= 8.64e15) { return result; } } return NaN; } return NativeDate.parse.apply(this, arguments); }; defineProperties(DateShim, { parse: parseShim }); return DateShim; }(Date)); } // ES5 15.9.4.4 // http://es5.github.com/#x15.9.4.4 if (!Date.now) { Date.now = function now() { return new Date().getTime(); }; } // // Number // ====== // // ES5.1 15.7.4.5 // http://es5.github.com/#x15.7.4.5 var hasToFixedBugs = NumberPrototype.toFixed && ( (0.00008).toFixed(3) !== '0.000' || (0.9).toFixed(0) !== '1' || (1.255).toFixed(2) !== '1.25' || (1000000000000000128).toFixed(0) !== '1000000000000000128' ); var toFixedHelpers = { base: 1e7, size: 6, data: [0, 0, 0, 0, 0, 0], multiply: function multiply(n, c) { var i = -1; var c2 = c; while (++i < toFixedHelpers.size) { c2 += n * toFixedHelpers.data[i]; toFixedHelpers.data[i] = c2 % toFixedHelpers.base; c2 = Math.floor(c2 / toFixedHelpers.base); } }, divide: function divide(n) { var i = toFixedHelpers.size; var c = 0; while (--i >= 0) { c += toFixedHelpers.data[i]; toFixedHelpers.data[i] = Math.floor(c / n); c = (c % n) * toFixedHelpers.base; } }, numToString: function numToString() { var i = toFixedHelpers.size; var s = ''; while (--i >= 0) { if (s !== '' || i === 0 || toFixedHelpers.data[i] !== 0) { var t = $String(toFixedHelpers.data[i]); if (s === '') { s = t; } else { s += strSlice('0000000', 0, 7 - t.length) + t; } } } return s; }, pow: function pow(x, n, acc) { return (n === 0 ? acc : (n % 2 === 1 ? pow(x, n - 1, acc * x) : pow(x * x, n / 2, acc))); }, log: function log(x) { var n = 0; var x2 = x; while (x2 >= 4096) { n += 12; x2 /= 4096; } while (x2 >= 2) { n += 1; x2 /= 2; } return n; } }; var toFixedShim = function toFixed(fractionDigits) { var f, x, s, m, e, z, j, k; // Test for NaN and round fractionDigits down f = $Number(fractionDigits); f = isActualNaN(f) ? 0 : Math.floor(f); if (f < 0 || f > 20) { throw new RangeError('Number.toFixed called with invalid number of decimals'); } x = $Number(this); if (isActualNaN(x)) { return 'NaN'; } // If it is too big or small, return the string value of the number if (x <= -1e21 || x >= 1e21) { return $String(x); } s = ''; if (x < 0) { s = '-'; x = -x; } m = '0'; if (x > 1e-21) { // 1e-21 < x < 1e21 // -70 < log2(x) < 70 e = toFixedHelpers.log(x * toFixedHelpers.pow(2, 69, 1)) - 69; z = (e < 0 ? x * toFixedHelpers.pow(2, -e, 1) : x / toFixedHelpers.pow(2, e, 1)); z *= 0x10000000000000; // Math.pow(2, 52); e = 52 - e; // -18 < e < 122 // x = z / 2 ^ e if (e > 0) { toFixedHelpers.multiply(0, z); j = f; while (j >= 7) { toFixedHelpers.multiply(1e7, 0); j -= 7; } toFixedHelpers.multiply(toFixedHelpers.pow(10, j, 1), 0); j = e - 1; while (j >= 23) { toFixedHelpers.divide(1 << 23); j -= 23; } toFixedHelpers.divide(1 << j); toFixedHelpers.multiply(1, 1); toFixedHelpers.divide(2); m = toFixedHelpers.numToString(); } else { toFixedHelpers.multiply(0, z); toFixedHelpers.multiply(1 << (-e), 0); m = toFixedHelpers.numToString() + strSlice('0.00000000000000000000', 2, 2 + f); } } if (f > 0) { k = m.length; if (k <= f) { m = s + strSlice('0.0000000000000000000', 0, f - k + 2) + m; } else { m = s + strSlice(m, 0, k - f) + '.' + strSlice(m, k - f); } } else { m = s + m; } return m; }; defineProperties(NumberPrototype, { toFixed: toFixedShim }, hasToFixedBugs); var hasToPrecisionUndefinedBug = (function () { try { return 1.0.toPrecision(undefined) === '1'; } catch (e) { return true; } }()); var originalToPrecision = NumberPrototype.toPrecision; defineProperties(NumberPrototype, { toPrecision: function toPrecision(precision) { return typeof precision === 'undefined' ? originalToPrecision.call(this) : originalToPrecision.call(this, precision); } }, hasToPrecisionUndefinedBug); // // String // ====== // // ES5 15.5.4.14 // http://es5.github.com/#x15.5.4.14 // [bugfix, IE lt 9, firefox 4, Konqueror, Opera, obscure browsers] // Many browsers do not split properly with regular expressions or they // do not perform the split correctly under obscure conditions. // See http://blog.stevenlevithan.com/archives/cross-browser-split // I've tested in many browsers and this seems to cover the deviant ones: // 'ab'.split(/(?:ab)*/) should be ["", ""], not [""] // '.'.split(/(.?)(.?)/) should be ["", ".", "", ""], not ["", ""] // 'tesst'.split(/(s)*/) should be ["t", undefined, "e", "s", "t"], not // [undefined, "t", undefined, "e", ...] // ''.split(/.?/) should be [], not [""] // '.'.split(/()()/) should be ["."], not ["", "", "."] if ( 'ab'.split(/(?:ab)*/).length !== 2 || '.'.split(/(.?)(.?)/).length !== 4 || 'tesst'.split(/(s)*/)[1] === 't' || 'test'.split(/(?:)/, -1).length !== 4 || ''.split(/.?/).length || '.'.split(/()()/).length > 1 ) { (function () { var compliantExecNpcg = typeof (/()??/).exec('')[1] === 'undefined'; // NPCG: nonparticipating capturing group var maxSafe32BitInt = Math.pow(2, 32) - 1; StringPrototype.split = function split(separator, limit) { var string = String(this); if (typeof separator === 'undefined' && limit === 0) { return []; } // If `separator` is not a regex, use native split if (!isRegex(separator)) { return strSplit(this, separator, limit); } var output = []; var flags = (separator.ignoreCase ? 'i' : '') + (separator.multiline ? 'm' : '') + (separator.unicode ? 'u' : '') // in ES6 + (separator.sticky ? 'y' : ''), // Firefox 3+ and ES6 lastLastIndex = 0, // Make `global` and avoid `lastIndex` issues by working with a copy separator2, match, lastIndex, lastLength; var separatorCopy = new RegExp(separator.source, flags + 'g'); if (!compliantExecNpcg) { // Doesn't need flags gy, but they don't hurt separator2 = new RegExp('^' + separatorCopy.source + '$(?!\\s)', flags); } /* Values for `limit`, per the spec: * If undefined: 4294967295 // maxSafe32BitInt * If 0, Infinity, or NaN: 0 * If positive number: limit = Math.floor(limit); if (limit > 4294967295) limit -= 4294967296; * If negative number: 4294967296 - Math.floor(Math.abs(limit)) * If other: Type-convert, then use the above rules */ var splitLimit = typeof limit === 'undefined' ? maxSafe32BitInt : ES.ToUint32(limit); match = separatorCopy.exec(string); while (match) { // `separatorCopy.lastIndex` is not reliable cross-browser lastIndex = match.index + match[0].length; if (lastIndex > lastLastIndex) { pushCall(output, strSlice(string, lastLastIndex, match.index)); // Fix browsers whose `exec` methods don't consistently return `undefined` for // nonparticipating capturing groups if (!compliantExecNpcg && match.length > 1) { /* eslint-disable no-loop-func */ match[0].replace(separator2, function () { for (var i = 1; i < arguments.length - 2; i++) { if (typeof arguments[i] === 'undefined') { match[i] = void 0; } } }); /* eslint-enable no-loop-func */ } if (match.length > 1 && match.index < string.length) { array_push.apply(output, arraySlice(match, 1)); } lastLength = match[0].length; lastLastIndex = lastIndex; if (output.length >= splitLimit) { break; } } if (separatorCopy.lastIndex === match.index) { separatorCopy.lastIndex++; // Avoid an infinite loop } match = separatorCopy.exec(string); } if (lastLastIndex === string.length) { if (lastLength || !separatorCopy.test('')) { pushCall(output, ''); } } else { pushCall(output, strSlice(string, lastLastIndex)); } return output.length > splitLimit ? arraySlice(output, 0, splitLimit) : output; }; }()); // [bugfix, chrome] // If separator is undefined, then the result array contains just one String, // which is the this value (converted to a String). If limit is not undefined, // then the output array is truncated so that it contains no more than limit // elements. // "0".split(undefined, 0) -> [] } else if ('0'.split(void 0, 0).length) { StringPrototype.split = function split(separator, limit) { if (typeof separator === 'undefined' && limit === 0) { return []; } return strSplit(this, separator, limit); }; } var str_replace = StringPrototype.replace; var replaceReportsGroupsCorrectly = (function () { var groups = []; 'x'.replace(/x(.)?/g, function (match, group) { pushCall(groups, group); }); return groups.length === 1 && typeof groups[0] === 'undefined'; }()); if (!replaceReportsGroupsCorrectly) { StringPrototype.replace = function replace(searchValue, replaceValue) { var isFn = isCallable(replaceValue); var hasCapturingGroups = isRegex(searchValue) && (/\)[*?]/).test(searchValue.source); if (!isFn || !hasCapturingGroups) { return str_replace.call(this, searchValue, replaceValue); } else { var wrappedReplaceValue = function (match) { var length = arguments.length; var originalLastIndex = searchValue.lastIndex; searchValue.lastIndex = 0; // eslint-disable-line no-param-reassign var args = searchValue.exec(match) || []; searchValue.lastIndex = originalLastIndex; // eslint-disable-line no-param-reassign pushCall(args, arguments[length - 2], arguments[length - 1]); return replaceValue.apply(this, args); }; return str_replace.call(this, searchValue, wrappedReplaceValue); } }; } // ECMA-262, 3rd B.2.3 // Not an ECMAScript standard, although ECMAScript 3rd Edition has a // non-normative section suggesting uniform semantics and it should be // normalized across all browsers // [bugfix, IE lt 9] IE < 9 substr() with negative value not working in IE var string_substr = StringPrototype.substr; var hasNegativeSubstrBug = ''.substr && '0b'.substr(-1) !== 'b'; defineProperties(StringPrototype, { substr: function substr(start, length) { var normalizedStart = start; if (start < 0) { normalizedStart = max(this.length + start, 0); } return string_substr.call(this, normalizedStart, length); } }, hasNegativeSubstrBug); // ES5 15.5.4.20 // whitespace from: http://es5.github.io/#x15.5.4.20 var ws = '\x09\x0A\x0B\x0C\x0D\x20\xA0\u1680\u180E\u2000\u2001\u2002\u2003' + '\u2004\u2005\u2006\u2007\u2008\u2009\u200A\u202F\u205F\u3000\u2028' + '\u2029\uFEFF'; var zeroWidth = '\u200b'; var wsRegexChars = '[' + ws + ']'; var trimBeginRegexp = new RegExp('^' + wsRegexChars + wsRegexChars + '*'); var trimEndRegexp = new RegExp(wsRegexChars + wsRegexChars + '*$'); var hasTrimWhitespaceBug = StringPrototype.trim && (ws.trim() || !zeroWidth.trim()); defineProperties(StringPrototype, { // http://blog.stevenlevithan.com/archives/faster-trim-javascript // http://perfectionkills.com/whitespace-deviations/ trim: function trim() { if (typeof this === 'undefined' || this === null) { throw new TypeError("can't convert " + this + ' to object'); } return $String(this).replace(trimBeginRegexp, '').replace(trimEndRegexp, ''); } }, hasTrimWhitespaceBug); var trim = call.bind(String.prototype.trim); var hasLastIndexBug = StringPrototype.lastIndexOf && 'abcあい'.lastIndexOf('あい', 2) !== -1; defineProperties(StringPrototype, { lastIndexOf: function lastIndexOf(searchString) { if (typeof this === 'undefined' || this === null) { throw new TypeError("can't convert " + this + ' to object'); } var S = $String(this); var searchStr = $String(searchString); var numPos = arguments.length > 1 ? $Number(arguments[1]) : NaN; var pos = isActualNaN(numPos) ? Infinity : ES.ToInteger(numPos); var start = min(max(pos, 0), S.length); var searchLen = searchStr.length; var k = start + searchLen; while (k > 0) { k = max(0, k - searchLen); var index = strIndexOf(strSlice(S, k, start + searchLen), searchStr); if (index !== -1) { return k + index; } } return -1; } }, hasLastIndexBug); var originalLastIndexOf = StringPrototype.lastIndexOf; defineProperties(StringPrototype, { lastIndexOf: function lastIndexOf(searchString) { return originalLastIndexOf.apply(this, arguments); } }, StringPrototype.lastIndexOf.length !== 1); // ES-5 15.1.2.2 // eslint-disable-next-line radix if (parseInt(ws + '08') !== 8 || parseInt(ws + '0x16') !== 22) { // eslint-disable-next-line no-global-assign, no-implicit-globals parseInt = (function (origParseInt) { var hexRegex = /^[-+]?0[xX]/; return function parseInt(str, radix) { if (typeof str === 'symbol') { // handle Symbols in node 8.3/8.4 // eslint-disable-next-line no-implicit-coercion, no-unused-expressions '' + str; // jscs:ignore disallowImplicitTypeConversion } var string = trim(String(str)); var defaultedRadix = $Number(radix) || (hexRegex.test(string) ? 16 : 10); return origParseInt(string, defaultedRadix); }; }(parseInt)); } // https://es5.github.io/#x15.1.2.3 if (1 / parseFloat('-0') !== -Infinity) { // eslint-disable-next-line no-global-assign, no-implicit-globals, no-native-reassign parseFloat = (function (origParseFloat) { return function parseFloat(string) { var inputString = trim(String(string)); var result = origParseFloat(inputString); return result === 0 && strSlice(inputString, 0, 1) === '-' ? -0 : result; }; }(parseFloat)); } if (String(new RangeError('test')) !== 'RangeError: test') { var errorToStringShim = function toString() { if (typeof this === 'undefined' || this === null) { throw new TypeError("can't convert " + this + ' to object'); } var name = this.name; if (typeof name === 'undefined') { name = 'Error'; } else if (typeof name !== 'string') { name = $String(name); } var msg = this.message; if (typeof msg === 'undefined') { msg = ''; } else if (typeof msg !== 'string') { msg = $String(msg); } if (!name) { return msg; } if (!msg) { return name; } return name + ': ' + msg; }; // can't use defineProperties here because of toString enumeration issue in IE <= 8 Error.prototype.toString = errorToStringShim; } if (supportsDescriptors) { var ensureNonEnumerable = function (obj, prop) { if (isEnum(obj, prop)) { var desc = Object.getOwnPropertyDescriptor(obj, prop); if (desc.configurable) { desc.enumerable = false; Object.defineProperty(obj, prop, desc); } } }; ensureNonEnumerable(Error.prototype, 'message'); if (Error.prototype.message !== '') { Error.prototype.message = ''; } ensureNonEnumerable(Error.prototype, 'name'); } if (String(/a/mig) !== '/a/gim') { var regexToString = function toString() { var str = '/' + this.source + '/'; if (this.global) { str += 'g'; } if (this.ignoreCase) { str += 'i'; } if (this.multiline) { str += 'm'; } return str; }; // can't use defineProperties here because of toString enumeration issue in IE <= 8 RegExp.prototype.toString = regexToString; } }));