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f10078eab4
Multiple users are on chrome 56 when this is only supported on chrome 57. Given it's only few lines of code, it makes sense to keep supporting this.
963 lines
27 KiB
JavaScript
963 lines
27 KiB
JavaScript
/* eslint-disable */
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// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/entries
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if (!Object.entries) {
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Object.entries = function(obj) {
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var ownProps = Object.keys(obj),
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i = ownProps.length,
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resArray = new Array(i); // preallocate the Array
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while (i--) resArray[i] = [ownProps[i], obj[ownProps[i]]];
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return resArray;
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};
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}
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// adapted from https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/entries
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// missing in ie only
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if (!Object.values) {
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Object.values = function(obj) {
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var ownProps = Object.keys(obj),
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i = ownProps.length,
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resArray = new Array(i); // preallocate the Array
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while (i--) resArray[i] = obj[ownProps[i]];
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return resArray;
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};
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}
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// https://developer.mozilla.org/fr/docs/Web/API/NodeList/forEach
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if (window.NodeList && !NodeList.prototype.forEach) {
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NodeList.prototype.forEach = function(callback, thisArg) {
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thisArg = thisArg || window;
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for (var i = 0; i < this.length; i++) {
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callback.call(thisArg, this[i], i, this);
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}
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};
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}
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// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/includes#Polyfill
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if (!Array.prototype.includes) {
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Object.defineProperty(Array.prototype, "includes", {
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value: function(searchElement, fromIndex) {
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if (this == null) {
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throw new TypeError('"this" is null or not defined');
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}
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// 1. Let O be ? ToObject(this value).
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var o = Object(this);
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// 2. Let len be ? ToLength(? Get(O, "length")).
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var len = o.length >>> 0;
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// 3. If len is 0, return false.
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if (len === 0) {
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return false;
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}
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// 4. Let n be ? ToInteger(fromIndex).
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// (If fromIndex is undefined, this step produces the value 0.)
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var n = fromIndex | 0;
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// 5. If n ≥ 0, then
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// a. Let k be n.
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// 6. Else n < 0,
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// a. Let k be len + n.
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// b. If k < 0, let k be 0.
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var k = Math.max(n >= 0 ? n : len - Math.abs(n), 0);
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function sameValueZero(x, y) {
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return (
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x === y ||
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(typeof x === "number" &&
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typeof y === "number" &&
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isNaN(x) &&
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isNaN(y))
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);
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}
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// 7. Repeat, while k < len
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while (k < len) {
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// a. Let elementK be the result of ? Get(O, ! ToString(k)).
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// b. If SameValueZero(searchElement, elementK) is true, return true.
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if (sameValueZero(o[k], searchElement)) {
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return true;
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}
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// c. Increase k by 1.
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k++;
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}
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// 8. Return false
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return false;
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}
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});
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}
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// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/includes#Polyfill
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if (!String.prototype.includes) {
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Object.defineProperty(String.prototype, "includes", {
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value: function(search, start) {
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if (typeof start !== "number") {
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start = 0;
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}
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if (start + search.length > this.length) {
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return false;
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} else {
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return this.indexOf(search, start) !== -1;
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}
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}
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});
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}
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// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/find
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if (!Array.prototype.find) {
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Object.defineProperty(Array.prototype, "find", {
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value: function(predicate) {
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// 1. Let O be ? ToObject(this value).
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if (this == null) {
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throw new TypeError('"this" is null or not defined');
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}
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var o = Object(this);
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// 2. Let len be ? ToLength(? Get(O, "length")).
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var len = o.length >>> 0;
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// 3. If IsCallable(predicate) is false, throw a TypeError exception.
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if (typeof predicate !== "function") {
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throw new TypeError("predicate must be a function");
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}
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// 4. If thisArg was supplied, let T be thisArg; else let T be undefined.
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var thisArg = arguments[1];
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// 5. Let k be 0.
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var k = 0;
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// 6. Repeat, while k < len
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while (k < len) {
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// a. Let Pk be ! ToString(k).
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// b. Let kValue be ? Get(O, Pk).
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// c. Let testResult be ToBoolean(? Call(predicate, T, « kValue, k, O »)).
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// d. If testResult is true, return kValue.
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var kValue = o[k];
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if (predicate.call(thisArg, kValue, k, o)) {
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return kValue;
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}
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// e. Increase k by 1.
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k++;
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}
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// 7. Return undefined.
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return undefined;
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},
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configurable: true,
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writable: true
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});
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}
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// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/from
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// Production steps of ECMA-262, Edition 6, 22.1.2.1
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if (!Array.from) {
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Array.from = (function() {
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var toStr = Object.prototype.toString;
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var isCallable = function(fn) {
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return typeof fn === "function" || toStr.call(fn) === "[object Function]";
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};
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var toInteger = function(value) {
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var number = Number(value);
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if (isNaN(number)) {
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return 0;
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}
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if (number === 0 || !isFinite(number)) {
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return number;
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}
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return (number > 0 ? 1 : -1) * Math.floor(Math.abs(number));
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};
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var maxSafeInteger = Math.pow(2, 53) - 1;
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var toLength = function(value) {
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var len = toInteger(value);
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return Math.min(Math.max(len, 0), maxSafeInteger);
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};
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// The length property of the from method is 1.
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return function from(arrayLike /*, mapFn, thisArg */) {
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// 1. Let C be the this value.
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var C = this;
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// 2. Let items be ToObject(arrayLike).
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var items = Object(arrayLike);
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// 3. ReturnIfAbrupt(items).
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if (arrayLike == null) {
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throw new TypeError(
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"Array.from requires an array-like object - not null or undefined"
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);
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}
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// 4. If mapfn is undefined, then let mapping be false.
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var mapFn = arguments.length > 1 ? arguments[1] : void undefined;
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var T;
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if (typeof mapFn !== "undefined") {
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// 5. else
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// 5. a If IsCallable(mapfn) is false, throw a TypeError exception.
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if (!isCallable(mapFn)) {
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throw new TypeError(
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"Array.from: when provided, the second argument must be a function"
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);
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}
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// 5. b. If thisArg was supplied, let T be thisArg; else let T be undefined.
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if (arguments.length > 2) {
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T = arguments[2];
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}
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}
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// 10. Let lenValue be Get(items, "length").
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// 11. Let len be ToLength(lenValue).
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var len = toLength(items.length);
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// 13. If IsConstructor(C) is true, then
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// 13. a. Let A be the result of calling the [[Construct]] internal method
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// of C with an argument list containing the single item len.
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// 14. a. Else, Let A be ArrayCreate(len).
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var A = isCallable(C) ? Object(new C(len)) : new Array(len);
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// 16. Let k be 0.
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var k = 0;
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// 17. Repeat, while k < len… (also steps a - h)
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var kValue;
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while (k < len) {
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kValue = items[k];
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if (mapFn) {
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A[k] =
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typeof T === "undefined"
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? mapFn(kValue, k)
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: mapFn.call(T, kValue, k);
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} else {
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A[k] = kValue;
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}
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k += 1;
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}
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// 18. Let putStatus be Put(A, "length", len, true).
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A.length = len;
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// 20. Return A.
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return A;
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};
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})();
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}
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// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/assign
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if (typeof Object.assign !== "function") {
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// Must be writable: true, enumerable: false, configurable: true
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Object.defineProperty(Object, "assign", {
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value: function assign(target) {
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// .length of function is 2
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"use strict";
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if (target == null) {
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// TypeError if undefined or null
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throw new TypeError("Cannot convert undefined or null to object");
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}
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var to = Object(target);
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for (var index = 1; index < arguments.length; index++) {
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var nextSource = arguments[index];
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if (nextSource != null) {
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// Skip over if undefined or null
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for (var nextKey in nextSource) {
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// Avoid bugs when hasOwnProperty is shadowed
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if (Object.prototype.hasOwnProperty.call(nextSource, nextKey)) {
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to[nextKey] = nextSource[nextKey];
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}
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}
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}
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}
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return to;
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},
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writable: true,
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configurable: true
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});
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}
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// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/repeat#Polyfill
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if (!String.prototype.repeat) {
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String.prototype.repeat = function(count) {
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"use strict";
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if (this == null)
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throw new TypeError("can't convert " + this + " to object");
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var str = "" + this;
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// To convert string to integer.
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count = +count;
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// Check NaN
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if (count != count) count = 0;
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if (count < 0) throw new RangeError("repeat count must be non-negative");
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if (count == Infinity)
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throw new RangeError("repeat count must be less than infinity");
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count = Math.floor(count);
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if (str.length == 0 || count == 0) return "";
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// Ensuring count is a 31-bit integer allows us to heavily optimize the
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// main part. But anyway, most current (August 2014) browsers can't handle
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// strings 1 << 28 chars or longer, so:
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if (str.length * count >= 1 << 28)
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throw new RangeError(
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"repeat count must not overflow maximum string size"
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);
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var maxCount = str.length * count;
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count = Math.floor(Math.log(count) / Math.log(2));
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while (count) {
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str += str;
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count--;
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}
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str += str.substring(0, maxCount - str.length);
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return str;
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};
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}
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/*!
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* Symbol-ES6 v0.1.2
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* ES6 Symbol polyfill in pure ES5.
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*
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* @license Copyright (c) 2017-2018 Rousan Ali, MIT License
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*
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* Codebase: https://github.com/rousan/symbol-es6
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* Date: 28th Jan, 2018
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*/
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(function(global, factory) {
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"use strict";
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if (typeof module === "object" && typeof module.exports === "object") {
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// For the environment like NodeJS, CommonJS etc where module or
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// module.exports objects are available
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module.exports = factory(global);
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} else {
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// For browser context, where global object is window
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factory(global);
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}
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/* window is for browser environment and global is for NodeJS environment */
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})(typeof window !== "undefined" ? window : global, function(global) {
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"use strict";
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var defineProperty = Object.defineProperty;
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var defineProperties = Object.defineProperties;
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var symbolHiddenCounter = 0;
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var globalSymbolRegistry = [];
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var slice = Array.prototype.slice;
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var ES6 = typeof global.ES6 === "object" ? global.ES6 : (global.ES6 = {});
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var isArray = Array.isArray;
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var objectToString = Object.prototype.toString;
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var push = Array.prototype.push;
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var emptyFunction = function() {};
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var simpleFunction = function(arg) {
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return arg;
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};
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var isCallable = function(fn) {
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return typeof fn === "function";
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};
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var isConstructor = function(fn) {
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return isCallable(fn);
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};
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var Iterator = function() {};
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var ArrayIterator = function ArrayIterator(array, flag) {
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this._array = array;
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this._flag = flag;
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this._nextIndex = 0;
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};
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var StringIterator = function StringIterator(string, flag) {
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this._string = string;
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this._flag = flag;
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this._nextIndex = 0;
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};
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var isES6Running = function() {
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return false; /* Now 'false' for testing purpose */
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};
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var isObject = function(value) {
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return (
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value !== null &&
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(typeof value === "object" || typeof value === "function")
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);
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};
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var es6FunctionPrototypeHasInstanceSymbol = function(instance) {
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if (typeof this !== "function") return false;
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return instance instanceof this;
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};
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var es6InstanceOfOperator = function(object, constructor) {
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if (!isObject(constructor))
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throw new TypeError("Right-hand side of 'instanceof' is not an object");
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var hasInstanceSymbolProp = constructor[Symbol.hasInstance];
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if (typeof hasInstanceSymbolProp === "undefined") {
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return object instanceof constructor;
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} else if (typeof hasInstanceSymbolProp !== "function") {
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throw new TypeError(typeof hasInstanceSymbolProp + " is not a function");
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} else {
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return hasInstanceSymbolProp.call(constructor, object);
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}
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};
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// Generates name for a symbol instance and this name will be used as
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// property key for property symbols internally.
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var generateSymbolName = function(id) {
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return "@@_____" + id + "_____";
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};
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// Generates id for next Symbol instance
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var getNextSymbolId = function() {
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return symbolHiddenCounter++;
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};
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var setupSymbolInternals = function(symbol, desc) {
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defineProperties(symbol, {
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_description: {
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value: desc
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},
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_isSymbol: {
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value: true
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},
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_id: {
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value: getNextSymbolId()
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}
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});
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return symbol;
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};
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var checkSymbolInternals = function(symbol) {
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return (
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symbol._isSymbol === true &&
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typeof symbol._id === "number" &&
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typeof symbol._description === "string"
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);
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};
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var isSymbol = function(symbol) {
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return symbol instanceof Symbol && checkSymbolInternals(symbol);
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};
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var symbolFor = function(key) {
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key = String(key);
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var registryLength = globalSymbolRegistry.length,
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record,
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i = 0;
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for (; i < registryLength; ++i) {
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record = globalSymbolRegistry[i];
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if (record.key === key) return record.symbol;
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}
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record = {
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key: key,
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symbol: Symbol(key)
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};
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globalSymbolRegistry.push(record);
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return record.symbol;
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};
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var symbolKeyFor = function(symbol) {
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if (!ES6.isSymbol(symbol))
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throw new TypeError(String(symbol) + " is not a symbol");
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var registryLength = globalSymbolRegistry.length,
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record,
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i = 0;
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for (; i < registryLength; ++i) {
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record = globalSymbolRegistry[i];
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if (record.symbol === symbol) return record.key;
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}
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};
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/* It affects array1 and appends array2 at the end of array1 */
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var appendArray = function(array1, array2) {
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// Returns immediately if these are not array or not array-like objects
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if (
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!(
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typeof array1.length === "number" &&
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array1.length >= 0 &&
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typeof array2.length === "number" &&
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array2.length >= 0
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)
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)
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return;
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var length1 = Math.floor(array1.length),
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length2 = Math.floor(array2.length),
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i = 0;
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array1.length = length1 + length2;
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for (; i < length2; ++i)
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if (array2.hasOwnProperty(i)) array1[length1 + i] = array2[i];
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};
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var es6ObjectPrototypeToString = function toString() {
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if (this === undefined || this === null) return objectToString.call(this);
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// Add support for @@toStringTag symbol
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if (typeof this[Symbol.toStringTag] === "string")
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return "[object " + this[Symbol.toStringTag] + "]";
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else return objectToString.call(this);
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};
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var es6ArrayPrototypeConcat = function concat() {
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if (this === undefined || this === null)
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throw new TypeError("Array.prototype.concat called on null or undefined");
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// Boxing 'this' value to wrapper object
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var self = Object(this),
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targets = slice.call(arguments),
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outputs = []; // Later it may affected by Symbol
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targets.unshift(self);
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targets.forEach(function(target) {
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// If target is primitive then just push
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if (!isObject(target)) outputs.push(target);
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// Here Symbol.isConcatSpreadable support is added
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else if (typeof target[Symbol.isConcatSpreadable] !== "undefined") {
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if (target[Symbol.isConcatSpreadable]) {
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appendArray(outputs, target);
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} else {
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outputs.push(target);
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}
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} else if (isArray(target)) {
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appendArray(outputs, target);
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} else {
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outputs.push(target);
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}
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});
|
|
return outputs;
|
|
};
|
|
|
|
var es6ForOfLoop = function(iterable, callback, thisArg) {
|
|
callback = typeof callback !== "function" ? emptyFunction : callback;
|
|
if (typeof iterable[Symbol.iterator] !== "function")
|
|
throw new TypeError("Iterable[Symbol.iterator] is not a function");
|
|
var iterator = iterable[Symbol.iterator](),
|
|
iterationResult;
|
|
if (typeof iterator.next !== "function")
|
|
throw new TypeError(".iterator.next is not a function");
|
|
while (true) {
|
|
iterationResult = iterator.next();
|
|
if (!isObject(iterationResult))
|
|
throw new TypeError(
|
|
"Iterator result " + iterationResult + " is not an object"
|
|
);
|
|
if (iterationResult.done) break;
|
|
callback.call(thisArg, iterationResult.value);
|
|
}
|
|
};
|
|
|
|
// Provides simple inheritance functionality
|
|
var simpleInheritance = function(child, parent) {
|
|
if (typeof child !== "function" || typeof parent !== "function")
|
|
throw new TypeError("Child and Parent must be function type");
|
|
|
|
child.prototype = Object.create(parent.prototype);
|
|
child.prototype.constructor = child;
|
|
};
|
|
|
|
// Behaves as Symbol function in ES6, take description and returns an unique object,
|
|
// but in ES6 this function returns 'symbol' primitive typed value.
|
|
// Its type is 'object' not 'symbol'.
|
|
// There is no wrapping in this case i.e. Object(sym) = sym.
|
|
var Symbol = function Symbol(desc) {
|
|
desc = typeof desc === "undefined" ? "" : String(desc);
|
|
|
|
if (this instanceof Symbol)
|
|
throw new TypeError("Symbol is not a constructor");
|
|
|
|
return setupSymbolInternals(Object.create(Symbol.prototype), desc);
|
|
};
|
|
|
|
defineProperties(Symbol, {
|
|
for: {
|
|
value: symbolFor,
|
|
writable: true,
|
|
configurable: true
|
|
},
|
|
|
|
keyFor: {
|
|
value: symbolKeyFor,
|
|
writable: true,
|
|
configurable: true
|
|
},
|
|
|
|
hasInstance: {
|
|
value: Symbol("Symbol.hasInstance")
|
|
},
|
|
|
|
isConcatSpreadable: {
|
|
value: Symbol("Symbol.isConcatSpreadable")
|
|
},
|
|
|
|
iterator: {
|
|
value: Symbol("Symbol.iterator")
|
|
},
|
|
|
|
toStringTag: {
|
|
value: Symbol("Symbol.toStringTag")
|
|
}
|
|
});
|
|
|
|
// In ES6, this function returns like 'Symbol(<desc>)', but in this case
|
|
// this function returns the symbol's internal name to work properly.
|
|
Symbol.prototype.toString = function() {
|
|
return generateSymbolName(this._id);
|
|
};
|
|
|
|
// Returns itself but in ES6 It returns 'symbol' typed value.
|
|
Symbol.prototype.valueOf = function() {
|
|
return this;
|
|
};
|
|
|
|
// Make Iterator like iterable
|
|
defineProperty(Iterator.prototype, Symbol.iterator.toString(), {
|
|
value: function() {
|
|
return this;
|
|
},
|
|
writable: true,
|
|
configurable: true
|
|
});
|
|
|
|
simpleInheritance(ArrayIterator, Iterator);
|
|
|
|
simpleInheritance(StringIterator, Iterator);
|
|
|
|
defineProperty(ArrayIterator.prototype, Symbol.toStringTag.toString(), {
|
|
value: "Array Iterator",
|
|
configurable: true
|
|
});
|
|
|
|
defineProperty(StringIterator.prototype, Symbol.toStringTag.toString(), {
|
|
value: "String Iterator",
|
|
configurable: true
|
|
});
|
|
|
|
// This iterator works on any Array or TypedArray or array-like objects
|
|
ArrayIterator.prototype.next = function next() {
|
|
if (!(this instanceof ArrayIterator))
|
|
throw new TypeError(
|
|
"Method Array Iterator.prototype.next called on incompatible receiver " +
|
|
String(this)
|
|
);
|
|
|
|
var self = this,
|
|
nextValue;
|
|
|
|
if (self._nextIndex === -1) {
|
|
return {
|
|
done: true,
|
|
value: undefined
|
|
};
|
|
}
|
|
|
|
if (!(typeof self._array.length === "number" && self._array.length >= 0)) {
|
|
self._nextIndex = -1;
|
|
return {
|
|
done: true,
|
|
value: undefined
|
|
};
|
|
}
|
|
|
|
// _flag = 1 for [index, value]
|
|
// _flag = 2 for [value]
|
|
// _flag = 3 for [index]
|
|
if (self._nextIndex < Math.floor(self._array.length)) {
|
|
if (self._flag === 1)
|
|
nextValue = [self._nextIndex, self._array[self._nextIndex]];
|
|
else if (self._flag === 2) nextValue = self._array[self._nextIndex];
|
|
else if (self._flag === 3) nextValue = self._nextIndex;
|
|
self._nextIndex++;
|
|
return {
|
|
done: false,
|
|
value: nextValue
|
|
};
|
|
} else {
|
|
self._nextIndex = -1;
|
|
return {
|
|
done: true,
|
|
value: undefined
|
|
};
|
|
}
|
|
};
|
|
|
|
StringIterator.prototype.next = function next() {
|
|
if (!(this instanceof StringIterator))
|
|
throw new TypeError(
|
|
"Method String Iterator.prototype.next called on incompatible receiver " +
|
|
String(this)
|
|
);
|
|
|
|
var self = this,
|
|
stringObject = new String(this._string),
|
|
nextValue;
|
|
|
|
if (self._nextIndex === -1) {
|
|
return {
|
|
done: true,
|
|
value: undefined
|
|
};
|
|
}
|
|
|
|
if (self._nextIndex < stringObject.length) {
|
|
nextValue = stringObject[self._nextIndex];
|
|
self._nextIndex++;
|
|
return {
|
|
done: false,
|
|
value: nextValue
|
|
};
|
|
} else {
|
|
self._nextIndex = -1;
|
|
return {
|
|
done: true,
|
|
value: undefined
|
|
};
|
|
}
|
|
};
|
|
|
|
var es6ArrayPrototypeIteratorSymbol = function values() {
|
|
if (this === undefined || this === null)
|
|
throw new TypeError("Cannot convert undefined or null to object");
|
|
|
|
var self = Object(this);
|
|
return new ArrayIterator(self, 2);
|
|
};
|
|
|
|
var es6StringPrototypeIteratorSymbol = function values() {
|
|
if (this === undefined || this === null)
|
|
throw new TypeError(
|
|
"String.prototype[Symbol.iterator] called on null or undefined"
|
|
);
|
|
return new StringIterator(String(this), 0);
|
|
};
|
|
|
|
var es6ArrayPrototypeEntries = function entries() {
|
|
if (this === undefined || this === null)
|
|
throw new TypeError("Cannot convert undefined or null to object");
|
|
|
|
var self = Object(this);
|
|
return new ArrayIterator(self, 1);
|
|
};
|
|
|
|
var es6ArrayPrototypeKeys = function keys() {
|
|
if (this === undefined || this === null)
|
|
throw new TypeError("Cannot convert undefined or null to object");
|
|
var self = Object(this);
|
|
return new ArrayIterator(self, 3);
|
|
};
|
|
|
|
var SpreadOperatorImpl = function(target, thisArg) {
|
|
this._target = target;
|
|
this._values = [];
|
|
this._thisArg = thisArg;
|
|
};
|
|
// All the arguments must be iterable
|
|
SpreadOperatorImpl.prototype.spread = function() {
|
|
var self = this;
|
|
slice.call(arguments).forEach(function(iterable) {
|
|
ES6.forOf(iterable, function(value) {
|
|
self._values.push(value);
|
|
});
|
|
});
|
|
return self;
|
|
};
|
|
|
|
SpreadOperatorImpl.prototype.add = function() {
|
|
var self = this;
|
|
slice.call(arguments).forEach(function(value) {
|
|
self._values.push(value);
|
|
});
|
|
return self;
|
|
};
|
|
|
|
SpreadOperatorImpl.prototype.call = function(thisArg) {
|
|
if (typeof this._target !== "function")
|
|
throw new TypeError("Target is not a function");
|
|
thisArg = arguments.length <= 0 ? this._thisArg : thisArg;
|
|
return this._target.apply(thisArg, this._values);
|
|
};
|
|
|
|
SpreadOperatorImpl.prototype.new = function() {
|
|
if (typeof this._target !== "function")
|
|
throw new TypeError("Target is not a constructor");
|
|
|
|
var temp, returnValue;
|
|
temp = Object.create(this._target.prototype);
|
|
returnValue = this._target.apply(temp, this._values);
|
|
return isObject(returnValue) ? returnValue : temp;
|
|
};
|
|
|
|
// Affects the target array
|
|
SpreadOperatorImpl.prototype.array = function() {
|
|
if (!isArray(this._target)) throw new TypeError("Target is not a array");
|
|
push.apply(this._target, this._values);
|
|
return this._target;
|
|
};
|
|
|
|
// Target must be Array or function
|
|
var es6SpreadOperator = function spreadOperator(target, thisArg) {
|
|
if (!(typeof target === "function" || isArray(target)))
|
|
throw new TypeError(
|
|
"Spread operator only supports on array and function objects at this moment"
|
|
);
|
|
return new SpreadOperatorImpl(target, thisArg);
|
|
};
|
|
|
|
var es6ArrayFrom = function from(arrayLike, mapFn, thisArg) {
|
|
var constructor,
|
|
i = 0,
|
|
length,
|
|
outputs;
|
|
// Use the generic constructor
|
|
constructor = !isConstructor(this) ? Array : this;
|
|
if (arrayLike === undefined || arrayLike === null)
|
|
throw new TypeError("Cannot convert undefined or null to object");
|
|
|
|
arrayLike = Object(arrayLike);
|
|
if (mapFn === undefined) mapFn = simpleFunction;
|
|
else if (!isCallable(mapFn))
|
|
throw new TypeError(mapFn + " is not a function");
|
|
|
|
if (typeof arrayLike[Symbol.iterator] === "undefined") {
|
|
if (!(typeof arrayLike.length === "number" && arrayLike.length >= 0)) {
|
|
outputs = new constructor(0);
|
|
outputs.length = 0;
|
|
return outputs;
|
|
}
|
|
length = Math.floor(arrayLike.length);
|
|
outputs = new constructor(length);
|
|
outputs.length = length;
|
|
for (; i < length; ++i) outputs[i] = mapFn.call(thisArg, arrayLike[i]);
|
|
} else {
|
|
outputs = new constructor();
|
|
outputs.length = 0;
|
|
ES6.forOf(arrayLike, function(value) {
|
|
outputs.length++;
|
|
outputs[outputs.length - 1] = mapFn.call(thisArg, value);
|
|
});
|
|
}
|
|
return outputs;
|
|
};
|
|
|
|
// Export ES6 APIs and add all the patches to support Symbol in ES5
|
|
// If the running environment already supports ES6 then no patches will be applied,
|
|
if (isES6Running()) return ES6;
|
|
else {
|
|
// Some ES6 APIs can't be implemented in pure ES5, so this 'ES6' object provides
|
|
// some equivalent functionality of these features.
|
|
defineProperties(ES6, {
|
|
// Checks if a JS value is a symbol
|
|
// It can be used as equivalent api in ES6: typeof symbol === 'symbol'
|
|
isSymbol: {
|
|
value: isSymbol,
|
|
writable: true,
|
|
configurable: true
|
|
},
|
|
|
|
// Native ES5 'instanceof' operator does not support @@hasInstance symbol,
|
|
// this method provides same functionality of ES6 'instanceof' operator.
|
|
instanceOf: {
|
|
value: es6InstanceOfOperator,
|
|
writable: true,
|
|
configurable: true
|
|
},
|
|
|
|
// This method behaves exactly same as ES6 for...of loop.
|
|
forOf: {
|
|
value: es6ForOfLoop,
|
|
writable: true,
|
|
configurable: true
|
|
},
|
|
|
|
// This method gives same functionality of the spread operator of ES6
|
|
// It works on only functions and arrays.
|
|
// Limitation: You can't create array like this [...iterable, , , , 33] by this method,
|
|
// to achieve this you have to do like this [...iterable, undefined, undefined, undefined, 33]
|
|
spreadOperator: {
|
|
value: es6SpreadOperator,
|
|
writable: true,
|
|
configurable: true
|
|
}
|
|
});
|
|
|
|
defineProperty(global, "Symbol", {
|
|
value: Symbol,
|
|
writable: true,
|
|
configurable: true
|
|
});
|
|
|
|
defineProperty(Function.prototype, Symbol.hasInstance.toString(), {
|
|
value: es6FunctionPrototypeHasInstanceSymbol
|
|
});
|
|
|
|
defineProperty(Array.prototype, "concat", {
|
|
value: es6ArrayPrototypeConcat,
|
|
writable: true,
|
|
configurable: true
|
|
});
|
|
|
|
defineProperty(Object.prototype, "toString", {
|
|
value: es6ObjectPrototypeToString,
|
|
writable: true,
|
|
configurable: true
|
|
});
|
|
|
|
defineProperty(Array.prototype, Symbol.iterator.toString(), {
|
|
value: es6ArrayPrototypeIteratorSymbol,
|
|
writable: true,
|
|
configurable: true
|
|
});
|
|
|
|
defineProperty(Array, "from", {
|
|
value: es6ArrayFrom,
|
|
writable: true,
|
|
configurable: true
|
|
});
|
|
|
|
defineProperty(Array.prototype, "entries", {
|
|
value: es6ArrayPrototypeEntries,
|
|
writable: true,
|
|
configurable: true
|
|
});
|
|
|
|
defineProperty(Array.prototype, "keys", {
|
|
value: es6ArrayPrototypeKeys,
|
|
writable: true,
|
|
configurable: true
|
|
});
|
|
|
|
defineProperty(String.prototype, Symbol.iterator.toString(), {
|
|
value: es6StringPrototypeIteratorSymbol,
|
|
writable: true,
|
|
configurable: true
|
|
});
|
|
}
|
|
|
|
return ES6;
|
|
});
|
|
/* eslint-enable */
|