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- /*!
- * 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.
- ; // eslint-disable-line no-extra-semi
- // 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: https://es5.github.io/ (specific links below)
- * ES5 Spec: https://www.ecma-international.org/wp-content/uploads/ECMA-262_5.1_edition_june_2011.pdf
- * Required reading: https://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;
- var floor = Math.floor;
- var abs = Math.abs;
- var pow = Math.pow;
- var round = Math.round;
- var log = Math.log;
- var LOG10E = Math.LOG10E;
- var log10 = Math.log10 || function log10(value) {
- return log(value) * LOG10E;
- };
- // 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 https://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;
- }
- $Object.defineProperty(object, name, {
- configurable: true,
- enumerable: false,
- writable: true,
- value: method
- });
- };
- } else {
- defineProperty = function (object, name, method, forceAssign) {
- if (!forceAssign && (name in object)) {
- return;
- }
- object[name] = method; // eslint-disable-line no-param-reassign
- };
- }
- return function defineProperties(object, map, forceAssign) {
- for (var name in map) {
- if (has.call(map, name)) {
- defineProperty(object, name, map[name], forceAssign);
- }
- }
- };
- }(ObjectPrototype.hasOwnProperty));
- // this is needed in Chrome 15 (probably earlier) - 36
- // https://bugs.chromium.org/p/v8/issues/detail?id=3334
- if ($Object.defineProperty && supportsDescriptors) {
- var F = function () {};
- var toStringSentinel = {};
- var sentinel = { toString: toStringSentinel };
- $Object.defineProperty(F, 'prototype', { value: sentinel, writable: false });
- if ((new F()).toString !== toStringSentinel) {
- var $dP = $Object.defineProperty;
- var $gOPD = $Object.getOwnPropertyDescriptor;
- defineProperties($Object, {
- defineProperty: function defineProperty(o, k, d) {
- var key = $String(k);
- if (typeof o === 'function' && key === 'prototype') {
- var desc = $gOPD(o, key);
- if (desc.writable && !d.writable && 'value' in d) {
- try {
- o[key] = d.value; // eslint-disable-line no-param-reassign
- } catch (e) { /**/ }
- }
- return $dP(o, key, {
- configurable: 'configurable' in d ? d.configurable : desc.configurable,
- enumerable: 'enumerable' in d ? d.enumerable : desc.enumerable,
- writable: d.writable
- });
- }
- return $dP(o, key, d);
- }
- }, true);
- }
- }
- //
- // 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
- // https://es5.github.io/#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) * floor(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
- // https://es5.github.io/#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
- // https://es5.github.io/#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;
- }
- // 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 = $Array.isArray || function isArray(obj) {
- return toStr(obj) === '[object Array]';
- };
- // ES5 15.4.4.12
- // https://es5.github.io/#x15.4.4.13
- // Return len+argCount.
- // [bugfix, ielt8]
- // IE < 8 bug: [].unshift(0) === undefined but should be "1"
- var hasUnshiftReturnValueBug = [].unshift(0) !== 1;
- defineProperties(ArrayPrototype, {
- unshift: function () {
- array_unshift.apply(this, arguments);
- return this.length;
- }
- }, hasUnshiftReturnValueBug);
- // ES5 15.4.3.2
- // https://es5.github.io/#x15.4.3.2
- // https://developer.mozilla.org/en/JavaScript/Reference/Global_Objects/Array/isArray
- defineProperties($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
- // https://es5.github.io/#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
- // https://es5.github.io/#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
- // https://es5.github.io/#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
- // https://es5.github.io/#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
- // https://es5.github.io/#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
- // https://es5.github.io/#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
- // https://es5.github.io/#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
- // https://es5.github.io/#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
- // https://es5.github.io/#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 - abs(i);
- for (; i >= 0; i--) {
- if (i in self && searchElement === self[i]) {
- return i;
- }
- }
- return -1;
- }
- }, hasFirefox2LastIndexOfBug);
- // ES5 15.4.4.12
- // https://es5.github.io/#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 [];
- }
- return array_splice.apply(this, arguments);
- }
- }, !spliceNoopReturnsEmptyArray);
- var spliceWorksWithEmptyObject = (function () {
- var obj = {};
- ArrayPrototype.splice.call(obj, 0, 0, 1);
- return obj.length === 1;
- }());
- var hasES6Defaults = [0, 1, 2].splice(0).length === 3;
- 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 || !hasES6Defaults);
- 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
- // https://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
- // https://es5.github.io/#x15.2.3.14
- // https://web.archive.org/web/20140727042234/http://whattheheadsaid.com/2010/10/a-safer-object-keys-compatibility-implementation
- // eslint-disable-next-line quote-props
- 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));
- }
- 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 = floor(abs(timezoneOffset) / 60);
- var minutesOffset = floor(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
- // https://es5.github.io/#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 += 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' + 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
- // https://es5.github.io/#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
- // https://es5.github.io/#x15.9.4.2
- // based on work shared by Daniel Friesen (dantman)
- // https://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 = 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 = floor(ms / maxSafeUnsigned32Bit) * maxSafeUnsigned32Bit;
- var sToShift = floor(msToShift / 1e3);
- seconds += sToShift;
- millis -= sToShift * 1e3;
- }
- var parsed = DateShim.parse(Y);
- var hasNegTimestampParseBug = isNaN(parsed);
- date = length === 1 && $String(Y) === Y && !hasNegTimestampParseBug // isString(Y)
- // We explicitly pass it through parse:
- ? new NativeDate(parsed)
- // We have to manually make calls depending on argument
- // length here
- : length >= 7 ? new NativeDate(Y, M, D, h, m, seconds, millis)
- : length >= 6 ? new NativeDate(Y, M, D, h, m, seconds)
- : length >= 5 ? new NativeDate(Y, M, D, h, m)
- : length >= 4 ? new NativeDate(Y, M, D, h)
- : length >= 3 ? new NativeDate(Y, M, D)
- : length >= 2 ? new NativeDate(Y, M)
- : length >= 1 ? new NativeDate(Y instanceof NativeDate ? +Y : Y)
- : new NativeDate();
- } else {
- date = NativeDate.apply(this, arguments);
- }
- if (!isPrimitive(date)) {
- // Prevent mixups with unfixed Date object
- defineProperties(date, { constructor: DateShim }, true);
- }
- return date;
- };
- // 15.9.1.15 Date Time String Format.
- var isoDateExpression = new RegExp('^'
- + '(\\d{4}|[+-]\\d{6})' // four-digit year capture or sign + 6-digit extended year
- + '(?:-(\\d{2})' // optional month capture
- + '(?:-(\\d{2})' // optional day capture
- + '(?:' // capture hours:minutes:seconds.milliseconds
- + 'T(\\d{2})' // hours capture
- + ':(\\d{2})' // minutes capture
- + '(?:' // optional :seconds.milliseconds
- + ':(\\d{2})' // seconds capture
- + '(?:(\\.\\d{1,}))?' // milliseconds capture
- + ')?'
- + '(' // capture UTC offset component
- + 'Z|' // UTC capture
- + '(?:' // offset specifier +/-hours:minutes
- + '([-+])' // sign capture
- + '(\\d{2})' // hours offset capture
- + ':(\\d{2})' // minutes offset capture
- + ')'
- + ')?)?)?)?'
- + '$');
- 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]
- + floor((year - 1969 + t) / 4)
- - floor((year - 1901 + t) / 100)
- + 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 = floor(ms / maxSafeUnsigned32Bit) * maxSafeUnsigned32Bit;
- var sToShift = 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 = $Number(match[6] || 0),
- millisecond = floor($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
- // https://es5.github.io/#x15.9.4.4
- if (!Date.now) {
- Date.now = function now() {
- return new Date().getTime();
- };
- }
- //
- // Number
- // ======
- //
- // ES5.1 15.7.4.5
- // https://es5.github.io/#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 = 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] = 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 : 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; // 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 hasToExponentialRoundingBug = (function () {
- try {
- return (-6.9e-11).toExponential(4) !== '-6.9000e-11';
- } catch (e) {
- return false;
- }
- }());
- var toExponentialAllowsInfiniteDigits = (function () {
- try {
- (1).toExponential(Infinity);
- (1).toExponential(-Infinity);
- return true;
- } catch (e) {
- return false;
- }
- }());
- var originalToExponential = call.bind(NumberPrototype.toExponential);
- var numberToString = call.bind(NumberPrototype.toString);
- var numberValueOf = call.bind(NumberPrototype.valueOf);
- defineProperties(NumberPrototype, {
- toExponential: function toExponential(fractionDigits) {
- // 1: Let x be this Number value.
- var x = numberValueOf(this);
- if (typeof fractionDigits === 'undefined') {
- return originalToExponential(x);
- }
- var f = ES.ToInteger(fractionDigits);
- if (isActualNaN(x)) {
- return 'NaN';
- }
- if (f < 0 || f > 20) {
- if (!isFinite(f)) {
- // IE 6 doesn't throw in the native one
- throw new RangeError('toExponential() argument must be between 0 and 20');
- }
- // this will probably have thrown already
- return originalToExponential(x, f);
- }
- // only cases left are a finite receiver + in-range fractionDigits
- // implementation adapted from https://gist.github.com/SheetJSDev/1100ad56b9f856c95299ed0e068eea08
- // 4: Let s be the empty string
- var s = '';
- // 5: If x < 0
- if (x < 0) {
- s = '-';
- x = -x;
- }
- // 6: If x = +Infinity
- if (x === Infinity) {
- return s + 'Infinity';
- }
- // 7: If fractionDigits is not undefined and (f < 0 or f > 20), throw a RangeError exception.
- if (typeof fractionDigits !== 'undefined' && (f < 0 || f > 20)) {
- throw new RangeError('Fraction digits ' + fractionDigits + ' out of range');
- }
- var m = '';
- var e = 0;
- var c = '';
- var d = '';
- // 8: If x = 0 then
- if (x === 0) {
- e = 0;
- f = 0;
- m = '0';
- } else { // 9: Else, x != 0
- var L = log10(x);
- e = floor(L); // 10 ** e <= x and x < 10 ** (e+1)
- var n = 0;
- if (typeof fractionDigits !== 'undefined') { // eslint-disable-line no-negated-condition
- var w = pow(10, e - f); // x / 10 ** (f+1) < w and w <= x / 10 ** f
- n = round(x / w); // 10 ** f <= n and n < 10 ** (f+1)
- if (2 * x >= (((2 * n) + 1) * w)) {
- n += 1; // pick larger value
- }
- if (n >= pow(10, f + 1)) { // 10e-1 = 1e0
- n /= 10;
- e += 1;
- }
- } else {
- f = 16; // start from Math.ceil(Math.log10(Number.MAX_SAFE_INTEGER)) and loop down
- var guess_n = round(pow(10, L - e + f));
- var target_f = f;
- while (f-- > 0) {
- guess_n = round(pow(10, L - e + f));
- if (
- abs((guess_n * pow(10, e - f)) - x)
- <= abs((n * pow(10, e - target_f)) - x)
- ) {
- target_f = f;
- n = guess_n;
- }
- }
- }
- m = numberToString(n, 10);
- if (typeof fractionDigits === 'undefined') {
- while (strSlice(m, -1) === '0') {
- m = strSlice(m, 0, -1);
- d += 1;
- }
- }
- }
- // 10: If f != 0, then
- if (f !== 0) {
- m = strSlice(m, 0, 1) + '.' + strSlice(m, 1);
- }
- // 11: If e = 0, then
- if (e === 0) {
- c = '+';
- d = '0';
- } else { // 12: Else
- c = e > 0 ? '+' : '-';
- d = numberToString(abs(e), 10);
- }
- // 13: Let m be the concatenation of the four Strings m, "e", c, and d.
- m += 'e' + c + d;
- // 14: Return the concatenation of the Strings s and m.
- return s + m;
- }
- }, hasToExponentialRoundingBug || toExponentialAllowsInfiniteDigits);
- var hasToPrecisionUndefinedBug = (function () {
- try {
- return 1.0.toPrecision(undefined) === '1';
- } catch (e) {
- return true;
- }
- }());
- var originalToPrecision = call.bind(NumberPrototype.toPrecision);
- defineProperties(NumberPrototype, {
- toPrecision: function toPrecision(precision) {
- return typeof precision === 'undefined' ? originalToPrecision(this) : originalToPrecision(this, precision);
- }
- }, hasToPrecisionUndefinedBug);
- //
- // String
- // ======
- //
- // ES5 15.5.4.14
- // https://es5.github.io/#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 https://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 = 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 = floor(limit); if (limit > 4294967295) limit -= 4294967296;
- * If negative number: 4294967296 - floor(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);
- }
- 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 hasNegativeSubstrBug = ''.substr && '0b'.substr(-1) !== 'b';
- var string_substr = hasNegativeSubstrBug && call.bind(StringPrototype.substr);
- defineProperties(StringPrototype, {
- substr: function substr(start, length) {
- var normalizedStart = start;
- if (start < 0) {
- normalizedStart = max(this.length + start, 0);
- }
- return string_substr(this, normalizedStart, length);
- }
- }, hasNegativeSubstrBug);
- // ES5 15.5.4.20
- // whitespace from: https://es5.github.io/#x15.5.4.20
- var mvs = '\u180E';
- var mvsIsWS = (/\s/).test(mvs);
- 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'
- .replace(/\S/g, ''); // remove the mongolian vowel separator (\u180E) in modern engines
- var zeroWidth = '\u200b';
- var wsRegexChars = '[' + ws + ']';
- var trimBeginRegexp = new RegExp('^' + wsRegexChars + wsRegexChars + '*');
- var trimEndRegexp = new RegExp(wsRegexChars + wsRegexChars + '*$');
- var hasTrimWhitespaceBug = StringPrototype.trim && (
- ws.trim() !== '' // if ws is not considered whitespace
- || zeroWidth.trim() === '' // if zero-width IS considered whitespace
- || mvs.trim() !== (mvsIsWS ? '' : mvs) // if MVS is either wrongly considered whitespace, or, wrongly considered NOT whitespace
- );
- defineProperties(StringPrototype, {
- // https://blog.stevenlevithan.com/archives/faster-trim-javascript
- // http://perfectionkills.com/whitespace-deviations/
- trim: function trim() {
- 'use strict';
- 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);
- var hexRegex = /^[-+]?0[xX]/;
- // ES-5 15.1.2.2
- if (
- parseInt(ws + '08') !== 8 // eslint-disable-line radix
- || parseInt(ws + '0x16') !== 22 // eslint-disable-line radix
- || (mvsIsWS ? parseInt(mvs + 1) !== 1 : !isNaN(parseInt(mvs + 1))) // eslint-disable-line radix
- ) {
- // eslint-disable-next-line no-global-assign, no-implicit-globals
- parseInt = (function (origParseInt) {
- return function parseInt(str, radix) {
- if (this instanceof parseInt) { new origParseInt(); } // eslint-disable-line new-cap, no-new, max-statements-per-line
- var string = trim(String(str));
- var defaultedRadix = $Number(radix) || (hexRegex.test(string) ? 16 : 10);
- return origParseInt(string, defaultedRadix);
- };
- }(parseInt));
- }
- // Edge 15-18
- var parseIntFailsToThrowOnBoxedSymbols = (function () {
- if (typeof Symbol !== 'function') {
- return false;
- }
- try {
- // eslint-disable-next-line radix
- parseInt(Object(Symbol.iterator));
- return true;
- } catch (e) { /**/ }
- try {
- // eslint-disable-next-line radix
- parseInt(Symbol.iterator);
- return true;
- } catch (e) { /**/ }
- return false;
- }());
- if (parseIntFailsToThrowOnBoxedSymbols) {
- var symbolValueOf = Symbol.prototype.valueOf;
- // eslint-disable-next-line no-global-assign, no-implicit-globals
- parseInt = (function (origParseInt) {
- return function parseInt(str, radix) {
- if (this instanceof parseInt) { new origParseInt(); } // eslint-disable-line new-cap, no-new, max-statements-per-line
- var isSym = typeof str === 'symbol';
- if (!isSym && str && typeof str === 'object') {
- try {
- symbolValueOf.call(str);
- isSym = true;
- } catch (e) { /**/ }
- }
- if (isSym) {
- // 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;
- }
- }));
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