mirror of
https://github.com/discourse/discourse.git
synced 2025-05-22 16:34:31 +08:00
Improve support for old browsers (#9515)
* FEATURE: Improve crawler view * FIX: Make lazyYT crawler-friendly * DEV: Rename discourse-internet-explorer to discourse-unsupported-browser * DEV: Detect more unsupported browsers Follow-up to 4eebbd221239eaa3fc7e6f1bd6a9dcf0239b8444. * FIX: Hide browser update notice in print view
This commit is contained in:
Dan Ungureanu
984
plugins/discourse-unsupported-browser/public/js/ie.js
Normal file
984
plugins/discourse-unsupported-browser/public/js/ie.js
Normal file
@ -0,0 +1,984 @@
|
||||
/* eslint-disable */
|
||||
|
||||
// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/entries
|
||||
if (!Object.entries) {
|
||||
Object.entries = function(obj) {
|
||||
var ownProps = Object.keys(obj),
|
||||
i = ownProps.length,
|
||||
resArray = new Array(i); // preallocate the Array
|
||||
while (i--) resArray[i] = [ownProps[i], obj[ownProps[i]]];
|
||||
|
||||
return resArray;
|
||||
};
|
||||
}
|
||||
|
||||
// adapted from https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/entries
|
||||
// missing in ie only
|
||||
if (!Object.values) {
|
||||
Object.values = function(obj) {
|
||||
var ownProps = Object.keys(obj),
|
||||
i = ownProps.length,
|
||||
resArray = new Array(i); // preallocate the Array
|
||||
while (i--) resArray[i] = obj[ownProps[i]];
|
||||
|
||||
return resArray;
|
||||
};
|
||||
}
|
||||
|
||||
// https://developer.mozilla.org/fr/docs/Web/API/NodeList/forEach
|
||||
if (window.NodeList && !NodeList.prototype.forEach) {
|
||||
NodeList.prototype.forEach = function(callback, thisArg) {
|
||||
thisArg = thisArg || window;
|
||||
for (var i = 0; i < this.length; i++) {
|
||||
callback.call(thisArg, this[i], i, this);
|
||||
}
|
||||
};
|
||||
}
|
||||
|
||||
// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/includes#Polyfill
|
||||
if (!Array.prototype.includes) {
|
||||
Object.defineProperty(Array.prototype, "includes", {
|
||||
value: function(searchElement, fromIndex) {
|
||||
if (this == null) {
|
||||
throw new TypeError('"this" is null or not defined');
|
||||
}
|
||||
|
||||
// 1. Let O be ? ToObject(this value).
|
||||
var o = Object(this);
|
||||
|
||||
// 2. Let len be ? ToLength(? Get(O, "length")).
|
||||
var len = o.length >>> 0;
|
||||
|
||||
// 3. If len is 0, return false.
|
||||
if (len === 0) {
|
||||
return false;
|
||||
}
|
||||
|
||||
// 4. Let n be ? ToInteger(fromIndex).
|
||||
// (If fromIndex is undefined, this step produces the value 0.)
|
||||
var n = fromIndex | 0;
|
||||
|
||||
// 5. If n ≥ 0, then
|
||||
// a. Let k be n.
|
||||
// 6. Else n < 0,
|
||||
// a. Let k be len + n.
|
||||
// b. If k < 0, let k be 0.
|
||||
var k = Math.max(n >= 0 ? n : len - Math.abs(n), 0);
|
||||
|
||||
function sameValueZero(x, y) {
|
||||
return (
|
||||
x === y ||
|
||||
(typeof x === "number" &&
|
||||
typeof y === "number" &&
|
||||
isNaN(x) &&
|
||||
isNaN(y))
|
||||
);
|
||||
}
|
||||
|
||||
// 7. Repeat, while k < len
|
||||
while (k < len) {
|
||||
// a. Let elementK be the result of ? Get(O, ! ToString(k)).
|
||||
// b. If SameValueZero(searchElement, elementK) is true, return true.
|
||||
if (sameValueZero(o[k], searchElement)) {
|
||||
return true;
|
||||
}
|
||||
// c. Increase k by 1.
|
||||
k++;
|
||||
}
|
||||
|
||||
// 8. Return false
|
||||
return false;
|
||||
}
|
||||
});
|
||||
}
|
||||
|
||||
// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/includes#Polyfill
|
||||
if (!String.prototype.includes) {
|
||||
Object.defineProperty(String.prototype, "includes", {
|
||||
value: function(search, start) {
|
||||
if (typeof start !== "number") {
|
||||
start = 0;
|
||||
}
|
||||
|
||||
if (start + search.length > this.length) {
|
||||
return false;
|
||||
} else {
|
||||
return this.indexOf(search, start) !== -1;
|
||||
}
|
||||
}
|
||||
});
|
||||
}
|
||||
|
||||
// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/find
|
||||
if (!Array.prototype.find) {
|
||||
Object.defineProperty(Array.prototype, "find", {
|
||||
value: function(predicate) {
|
||||
// 1. Let O be ? ToObject(this value).
|
||||
if (this == null) {
|
||||
throw new TypeError('"this" is null or not defined');
|
||||
}
|
||||
|
||||
var o = Object(this);
|
||||
|
||||
// 2. Let len be ? ToLength(? Get(O, "length")).
|
||||
var len = o.length >>> 0;
|
||||
|
||||
// 3. If IsCallable(predicate) is false, throw a TypeError exception.
|
||||
if (typeof predicate !== "function") {
|
||||
throw new TypeError("predicate must be a function");
|
||||
}
|
||||
|
||||
// 4. If thisArg was supplied, let T be thisArg; else let T be undefined.
|
||||
var thisArg = arguments[1];
|
||||
|
||||
// 5. Let k be 0.
|
||||
var k = 0;
|
||||
|
||||
// 6. Repeat, while k < len
|
||||
while (k < len) {
|
||||
// a. Let Pk be ! ToString(k).
|
||||
// b. Let kValue be ? Get(O, Pk).
|
||||
// c. Let testResult be ToBoolean(? Call(predicate, T, « kValue, k, O »)).
|
||||
// d. If testResult is true, return kValue.
|
||||
var kValue = o[k];
|
||||
if (predicate.call(thisArg, kValue, k, o)) {
|
||||
return kValue;
|
||||
}
|
||||
// e. Increase k by 1.
|
||||
k++;
|
||||
}
|
||||
|
||||
// 7. Return undefined.
|
||||
return undefined;
|
||||
},
|
||||
configurable: true,
|
||||
writable: true
|
||||
});
|
||||
}
|
||||
|
||||
// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/from
|
||||
// Production steps of ECMA-262, Edition 6, 22.1.2.1
|
||||
if (!Array.from) {
|
||||
Array.from = (function() {
|
||||
var toStr = Object.prototype.toString;
|
||||
var isCallable = function(fn) {
|
||||
return typeof fn === "function" || toStr.call(fn) === "[object Function]";
|
||||
};
|
||||
var toInteger = function(value) {
|
||||
var number = Number(value);
|
||||
if (isNaN(number)) {
|
||||
return 0;
|
||||
}
|
||||
if (number === 0 || !isFinite(number)) {
|
||||
return number;
|
||||
}
|
||||
return (number > 0 ? 1 : -1) * Math.floor(Math.abs(number));
|
||||
};
|
||||
var maxSafeInteger = Math.pow(2, 53) - 1;
|
||||
var toLength = function(value) {
|
||||
var len = toInteger(value);
|
||||
return Math.min(Math.max(len, 0), maxSafeInteger);
|
||||
};
|
||||
|
||||
// The length property of the from method is 1.
|
||||
return function from(arrayLike /*, mapFn, thisArg */) {
|
||||
// 1. Let C be the this value.
|
||||
var C = this;
|
||||
|
||||
// 2. Let items be ToObject(arrayLike).
|
||||
var items = Object(arrayLike);
|
||||
|
||||
// 3. ReturnIfAbrupt(items).
|
||||
if (arrayLike == null) {
|
||||
throw new TypeError(
|
||||
"Array.from requires an array-like object - not null or undefined"
|
||||
);
|
||||
}
|
||||
|
||||
// 4. If mapfn is undefined, then let mapping be false.
|
||||
var mapFn = arguments.length > 1 ? arguments[1] : void undefined;
|
||||
var T;
|
||||
if (typeof mapFn !== "undefined") {
|
||||
// 5. else
|
||||
// 5. a If IsCallable(mapfn) is false, throw a TypeError exception.
|
||||
if (!isCallable(mapFn)) {
|
||||
throw new TypeError(
|
||||
"Array.from: when provided, the second argument must be a function"
|
||||
);
|
||||
}
|
||||
|
||||
// 5. b. If thisArg was supplied, let T be thisArg; else let T be undefined.
|
||||
if (arguments.length > 2) {
|
||||
T = arguments[2];
|
||||
}
|
||||
}
|
||||
|
||||
// 10. Let lenValue be Get(items, "length").
|
||||
// 11. Let len be ToLength(lenValue).
|
||||
var len = toLength(items.length);
|
||||
|
||||
// 13. If IsConstructor(C) is true, then
|
||||
// 13. a. Let A be the result of calling the [[Construct]] internal method
|
||||
// of C with an argument list containing the single item len.
|
||||
// 14. a. Else, Let A be ArrayCreate(len).
|
||||
var A = isCallable(C) ? Object(new C(len)) : new Array(len);
|
||||
|
||||
// 16. Let k be 0.
|
||||
var k = 0;
|
||||
// 17. Repeat, while k < len… (also steps a - h)
|
||||
var kValue;
|
||||
while (k < len) {
|
||||
kValue = items[k];
|
||||
if (mapFn) {
|
||||
A[k] =
|
||||
typeof T === "undefined"
|
||||
? mapFn(kValue, k)
|
||||
: mapFn.call(T, kValue, k);
|
||||
} else {
|
||||
A[k] = kValue;
|
||||
}
|
||||
k += 1;
|
||||
}
|
||||
// 18. Let putStatus be Put(A, "length", len, true).
|
||||
A.length = len;
|
||||
// 20. Return A.
|
||||
return A;
|
||||
};
|
||||
})();
|
||||
}
|
||||
|
||||
// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/assign
|
||||
if (typeof Object.assign !== "function") {
|
||||
// Must be writable: true, enumerable: false, configurable: true
|
||||
Object.defineProperty(Object, "assign", {
|
||||
value: function assign(target) {
|
||||
// .length of function is 2
|
||||
"use strict";
|
||||
if (target == null) {
|
||||
// TypeError if undefined or null
|
||||
throw new TypeError("Cannot convert undefined or null to object");
|
||||
}
|
||||
|
||||
var to = Object(target);
|
||||
|
||||
for (var index = 1; index < arguments.length; index++) {
|
||||
var nextSource = arguments[index];
|
||||
|
||||
if (nextSource != null) {
|
||||
// Skip over if undefined or null
|
||||
for (var nextKey in nextSource) {
|
||||
// Avoid bugs when hasOwnProperty is shadowed
|
||||
if (Object.prototype.hasOwnProperty.call(nextSource, nextKey)) {
|
||||
to[nextKey] = nextSource[nextKey];
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
return to;
|
||||
},
|
||||
writable: true,
|
||||
configurable: true
|
||||
});
|
||||
}
|
||||
|
||||
// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/repeat#Polyfill
|
||||
if (!String.prototype.repeat) {
|
||||
String.prototype.repeat = function(count) {
|
||||
"use strict";
|
||||
if (this == null)
|
||||
throw new TypeError("can't convert " + this + " to object");
|
||||
|
||||
var str = "" + this;
|
||||
// To convert string to integer.
|
||||
count = +count;
|
||||
// Check NaN
|
||||
if (count != count) count = 0;
|
||||
|
||||
if (count < 0) throw new RangeError("repeat count must be non-negative");
|
||||
|
||||
if (count == Infinity)
|
||||
throw new RangeError("repeat count must be less than infinity");
|
||||
|
||||
count = Math.floor(count);
|
||||
if (str.length == 0 || count == 0) return "";
|
||||
|
||||
// Ensuring count is a 31-bit integer allows us to heavily optimize the
|
||||
// main part. But anyway, most current (August 2014) browsers can't handle
|
||||
// strings 1 << 28 chars or longer, so:
|
||||
if (str.length * count >= 1 << 28)
|
||||
throw new RangeError(
|
||||
"repeat count must not overflow maximum string size"
|
||||
);
|
||||
|
||||
var maxCount = str.length * count;
|
||||
count = Math.floor(Math.log(count) / Math.log(2));
|
||||
while (count) {
|
||||
str += str;
|
||||
count--;
|
||||
}
|
||||
str += str.substring(0, maxCount - str.length);
|
||||
return str;
|
||||
};
|
||||
}
|
||||
|
||||
// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/startsWith#Polyfill
|
||||
if (!String.prototype.startsWith) {
|
||||
Object.defineProperty(String.prototype, "startsWith", {
|
||||
value: function(search, rawPos) {
|
||||
var pos = rawPos > 0 ? rawPos | 0 : 0;
|
||||
return this.substring(pos, pos + search.length) === search;
|
||||
}
|
||||
});
|
||||
}
|
||||
|
||||
/*!
|
||||
* Symbol-ES6 v0.1.2
|
||||
* ES6 Symbol polyfill in pure ES5.
|
||||
*
|
||||
* @license Copyright (c) 2017-2018 Rousan Ali, MIT License
|
||||
*
|
||||
* Codebase: https://github.com/rousan/symbol-es6
|
||||
* Date: 28th Jan, 2018
|
||||
*/
|
||||
|
||||
(function(global, factory) {
|
||||
"use strict";
|
||||
|
||||
if (typeof module === "object" && typeof module.exports === "object") {
|
||||
// For the environment like NodeJS, CommonJS etc where module or
|
||||
// module.exports objects are available
|
||||
module.exports = factory(global);
|
||||
} else {
|
||||
// For browser context, where global object is window
|
||||
factory(global);
|
||||
}
|
||||
|
||||
/* window is for browser environment and global is for NodeJS environment */
|
||||
})(typeof window !== "undefined" ? window : global, function(global) {
|
||||
"use strict";
|
||||
|
||||
var defineProperty = Object.defineProperty;
|
||||
|
||||
var defineProperties = Object.defineProperties;
|
||||
|
||||
var symbolHiddenCounter = 0;
|
||||
|
||||
var globalSymbolRegistry = [];
|
||||
|
||||
var slice = Array.prototype.slice;
|
||||
|
||||
var ES6 = typeof global.ES6 === "object" ? global.ES6 : (global.ES6 = {});
|
||||
|
||||
var isArray = Array.isArray;
|
||||
|
||||
var objectToString = Object.prototype.toString;
|
||||
|
||||
var push = Array.prototype.push;
|
||||
|
||||
var emptyFunction = function() {};
|
||||
|
||||
var simpleFunction = function(arg) {
|
||||
return arg;
|
||||
};
|
||||
|
||||
var isCallable = function(fn) {
|
||||
return typeof fn === "function";
|
||||
};
|
||||
|
||||
var isConstructor = function(fn) {
|
||||
return isCallable(fn);
|
||||
};
|
||||
|
||||
var Iterator = function() {};
|
||||
|
||||
var ArrayIterator = function ArrayIterator(array, flag) {
|
||||
this._array = array;
|
||||
this._flag = flag;
|
||||
this._nextIndex = 0;
|
||||
};
|
||||
|
||||
var StringIterator = function StringIterator(string, flag) {
|
||||
this._string = string;
|
||||
this._flag = flag;
|
||||
this._nextIndex = 0;
|
||||
};
|
||||
|
||||
var isES6Running = function() {
|
||||
return false; /* Now 'false' for testing purpose */
|
||||
};
|
||||
|
||||
var isObject = function(value) {
|
||||
return (
|
||||
value !== null &&
|
||||
(typeof value === "object" || typeof value === "function")
|
||||
);
|
||||
};
|
||||
|
||||
var es6FunctionPrototypeHasInstanceSymbol = function(instance) {
|
||||
if (typeof this !== "function") return false;
|
||||
return instance instanceof this;
|
||||
};
|
||||
|
||||
var es6InstanceOfOperator = function(object, constructor) {
|
||||
if (!isObject(constructor))
|
||||
throw new TypeError("Right-hand side of 'instanceof' is not an object");
|
||||
|
||||
var hasInstanceSymbolProp = constructor[Symbol.hasInstance];
|
||||
if (typeof hasInstanceSymbolProp === "undefined") {
|
||||
return object instanceof constructor;
|
||||
} else if (typeof hasInstanceSymbolProp !== "function") {
|
||||
throw new TypeError(typeof hasInstanceSymbolProp + " is not a function");
|
||||
} else {
|
||||
return hasInstanceSymbolProp.call(constructor, object);
|
||||
}
|
||||
};
|
||||
|
||||
// Generates name for a symbol instance and this name will be used as
|
||||
// property key for property symbols internally.
|
||||
var generateSymbolName = function(id) {
|
||||
return "@@_____" + id + "_____";
|
||||
};
|
||||
|
||||
// Generates id for next Symbol instance
|
||||
var getNextSymbolId = function() {
|
||||
return symbolHiddenCounter++;
|
||||
};
|
||||
|
||||
var setupSymbolInternals = function(symbol, desc) {
|
||||
defineProperties(symbol, {
|
||||
_description: {
|
||||
value: desc
|
||||
},
|
||||
_isSymbol: {
|
||||
value: true
|
||||
},
|
||||
_id: {
|
||||
value: getNextSymbolId()
|
||||
}
|
||||
});
|
||||
return symbol;
|
||||
};
|
||||
|
||||
var checkSymbolInternals = function(symbol) {
|
||||
return (
|
||||
symbol._isSymbol === true &&
|
||||
typeof symbol._id === "number" &&
|
||||
typeof symbol._description === "string"
|
||||
);
|
||||
};
|
||||
|
||||
var isSymbol = function(symbol) {
|
||||
return symbol instanceof Symbol && checkSymbolInternals(symbol);
|
||||
};
|
||||
|
||||
var symbolFor = function(key) {
|
||||
key = String(key);
|
||||
var registryLength = globalSymbolRegistry.length,
|
||||
record,
|
||||
i = 0;
|
||||
|
||||
for (; i < registryLength; ++i) {
|
||||
record = globalSymbolRegistry[i];
|
||||
if (record.key === key) return record.symbol;
|
||||
}
|
||||
|
||||
record = {
|
||||
key: key,
|
||||
symbol: Symbol(key)
|
||||
};
|
||||
globalSymbolRegistry.push(record);
|
||||
return record.symbol;
|
||||
};
|
||||
|
||||
var symbolKeyFor = function(symbol) {
|
||||
if (!ES6.isSymbol(symbol))
|
||||
throw new TypeError(String(symbol) + " is not a symbol");
|
||||
var registryLength = globalSymbolRegistry.length,
|
||||
record,
|
||||
i = 0;
|
||||
|
||||
for (; i < registryLength; ++i) {
|
||||
record = globalSymbolRegistry[i];
|
||||
if (record.symbol === symbol) return record.key;
|
||||
}
|
||||
};
|
||||
|
||||
/* It affects array1 and appends array2 at the end of array1 */
|
||||
var appendArray = function(array1, array2) {
|
||||
// Returns immediately if these are not array or not array-like objects
|
||||
if (
|
||||
!(
|
||||
typeof array1.length === "number" &&
|
||||
array1.length >= 0 &&
|
||||
typeof array2.length === "number" &&
|
||||
array2.length >= 0
|
||||
)
|
||||
)
|
||||
return;
|
||||
var length1 = Math.floor(array1.length),
|
||||
length2 = Math.floor(array2.length),
|
||||
i = 0;
|
||||
|
||||
array1.length = length1 + length2;
|
||||
for (; i < length2; ++i)
|
||||
if (array2.hasOwnProperty(i)) array1[length1 + i] = array2[i];
|
||||
};
|
||||
|
||||
var es6ObjectPrototypeToString = function toString() {
|
||||
if (this === undefined || this === null) return objectToString.call(this);
|
||||
// Add support for @@toStringTag symbol
|
||||
if (typeof this[Symbol.toStringTag] === "string")
|
||||
return "[object " + this[Symbol.toStringTag] + "]";
|
||||
else return objectToString.call(this);
|
||||
};
|
||||
|
||||
var es6ArrayPrototypeConcat = function concat() {
|
||||
if (this === undefined || this === null)
|
||||
throw new TypeError("Array.prototype.concat called on null or undefined");
|
||||
|
||||
// Boxing 'this' value to wrapper object
|
||||
var self = Object(this),
|
||||
targets = slice.call(arguments),
|
||||
outputs = []; // Later it may affected by Symbol
|
||||
|
||||
targets.unshift(self);
|
||||
|
||||
targets.forEach(function(target) {
|
||||
// If target is primitive then just push
|
||||
if (!isObject(target)) outputs.push(target);
|
||||
// Here Symbol.isConcatSpreadable support is added
|
||||
else if (typeof target[Symbol.isConcatSpreadable] !== "undefined") {
|
||||
if (target[Symbol.isConcatSpreadable]) {
|
||||
appendArray(outputs, target);
|
||||
} else {
|
||||
outputs.push(target);
|
||||
}
|
||||
} else if (isArray(target)) {
|
||||
appendArray(outputs, target);
|
||||
} else {
|
||||
outputs.push(target);
|
||||
}
|
||||
});
|
||||
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 */
|
||||
|
||||
// Polyfill Promise - used by popper.js
|
||||
if (!window.Promise) {
|
||||
window.Promise = true;
|
||||
}
|
||||
window.addEventListener(
|
||||
"load",
|
||||
function() {
|
||||
window.Promise = require("rsvp").Promise;
|
||||
},
|
||||
false
|
||||
);
|
||||
Reference in New Issue
Block a user