text: 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;
    };
  }
  