From f1827e5f9c37e9a344a8f7dd8ed269e774e83fce Mon Sep 17 00:00:00 2001 From: Jacob Thornton Date: Tue, 18 Aug 2015 17:06:17 -0700 Subject: [PATCH] add polyfil for bind for tether.js --- js/tests/unit/phantom.js | 32 ++++++++++++++++++++++++++++++++ 1 file changed, 32 insertions(+) diff --git a/js/tests/unit/phantom.js b/js/tests/unit/phantom.js index 3ed3b3ea37..2791bd8414 100644 --- a/js/tests/unit/phantom.js +++ b/js/tests/unit/phantom.js @@ -70,3 +70,35 @@ }) }()) + + +// bind polyfill +// shoutout mdn: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Function/bind#Polyfill + +if (!Function.prototype.bind) { + Function.prototype.bind = function(oThis) { + if (typeof this !== 'function') { + // closest thing possible to the ECMAScript 5 + // internal IsCallable function + throw new TypeError('Function.prototype.bind - what is trying to be bound is not callable'); + } + + var aArgs = Array.prototype.slice.call(arguments, 1), + fToBind = this, + fNOP = function() {}, + fBound = function() { + return fToBind.apply(this instanceof fNOP + ? this + : oThis, + aArgs.concat(Array.prototype.slice.call(arguments))); + }; + + if (this.prototype) { + // native functions don't have a prototype + fNOP.prototype = this.prototype; + } + fBound.prototype = new fNOP(); + + return fBound; + }; +} -- 2.47.2