25 lines
781 B
JavaScript
25 lines
781 B
JavaScript
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// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Function/bind
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if (!Function.prototype.bind) {
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Function.prototype.bind = function (oThis) {
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if (typeof this !== "function") {
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// closest thing possible to the ECMAScript 5 internal IsCallable function
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throw new TypeError("Function.prototype.bind - what is trying to be bound is not callable");
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}
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var aArgs = Array.prototype.slice.call(arguments, 1),
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fToBind = this,
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FNOP = function () {},
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fBound = function () {
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return fToBind.apply(this instanceof FNOP && oThis ? this : oThis, aArgs.concat(Array.prototype.slice.call(arguments)));
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};
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FNOP.prototype = this.prototype;
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fBound.prototype = new FNOP();
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return fBound;
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};
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}
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