mirror of https://github.com/node-red/node-red.git
57 lines
2.0 KiB
JavaScript
57 lines
2.0 KiB
JavaScript
(function() {
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var isIE11 = !!window.MSInputMethodContext && !!document.documentMode;
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if (isIE11) {
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// IE11 DOMTokenList.toggle does not support the two-argument variety
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window.DOMTokenList.prototype.toggle = function(cl,bo) {
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if (arguments.length === 1) {
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bo = !this.contains(cl);
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}
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this[!!bo?"add":"remove"](cl);
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}
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// IE11 does not provide classList on SVGElements
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if (! ("classList" in SVGElement.prototype)) {
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Object.defineProperty(SVGElement.prototype, 'classList', Object.getOwnPropertyDescriptor(HTMLElement.prototype, 'classList'));
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}
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// IE11 does not provide children on SVGElements
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if (! ("children" in SVGElement.prototype)) {
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Object.defineProperty(SVGElement.prototype, 'children', Object.getOwnPropertyDescriptor(HTMLElement.prototype, 'children'));
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}
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Array.from = function() {
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if (arguments.length > 1) {
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throw new Error("Node-RED's IE11 Array.from polyfill doesn't support multiple arguments");
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}
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var arrayLike = arguments[0]
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var result = [];
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if (arrayLike.forEach) {
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arrayLike.forEach(function(i) {
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result.push(i);
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})
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} else {
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for (var i=0;i<arrayLike.length;i++) {
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result.push(arrayList[i]);
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}
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}
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return result;
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}
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if (new Set([0]).size === 0) {
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// IE does not support passing an iterable to Set constructor
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var _Set = Set;
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/*global Set:true */
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Set = function Set(iterable) {
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var set = new _Set();
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if (iterable) {
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iterable.forEach(set.add, set);
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}
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return set;
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};
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Set.prototype = _Set.prototype;
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Set.prototype.constructor = Set;
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}
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}
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})();
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