// Function.prototype.bind // // A polyfill for Function.prototype.bind. Which lets you bind a defined // value to the `this` keyword in a function call. // // Bind is natively supported in: // IE9+ // Chrome 7+ // Firefox 4+ // Safari 5.1.4+ // iOS 6+ // Android Browser 4+ // Chrome for Android 0.16+ // // Originally from: // developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Function/bind 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 && oThis
               ? this
               : oThis,
               aArgs.concat(Array.prototype.slice.call(arguments)));
      };

  fNOP.prototype = this.prototype;
  fBound.prototype = new fNOP();

  return fBound;
};

}