Nodejs Utililty Methods Function Bind

Function.prototype.bind = function bind(self) {
  var callable = this;
  return function binding() { return callable.apply(self, arguments.toArray()); };

Function.prototype.bind = Function.prototype.bind || function (oThis) {
  if( typeof this !== "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(
...

Function.prototype.bind = function(scope) {
    var func = this;
    return function() {
        return func.apply(scope, arguments);
    };
};

Function.prototype.bind = function( obj ) {
  var slice = [].slice,
    args = slice.call(arguments, 1), 
    self = this, 
    nop = function () {}, 
    bound = function () {
      return self.apply( this instanceof nop ? this : ( obj || {} ), 
                args.concat( slice.call(arguments) ) );  
    };
...

Function.prototype.bind = function (bind) {
    var self = this;
    return function () {
        var args = Array.prototype.slice.call(arguments);
        return self.apply(bind || null, args);
    };
};

Function.prototype.rebind = function (n) {
    var me = this;
    return function () {
        var res = me.apply();
        var f = res && res[n];
        if(typeof f !== 'function') throw 'routed property was not a function.';
        f.apply(null, arguments);
    };
};
...

Function.prototype.bind = function(scope) {
  var _function = this;
  return function() {
    return _function.apply(scope, arguments);
};

Function.prototype.pass = function(args, bind){
  var self = this;
  if (args != null) args = Array.from(args);
  return function(){
    return self.apply(bind, args || arguments);
  };
};
Element.prototype.hasClass = function(className){
  return this.className.indexOf(className) != -1;
...

Function.prototype.createDelegate = function(obj, args, appendArgs){
    var method = this;
    return function() {
        var callArgs = args || arguments;
        if(appendArgs === true){
            callArgs = Array.prototype.slice.call(arguments, 0);
            callArgs = callArgs.concat(args);
        }else if(typeof appendArgs == 'number'){
            callArgs = Array.prototype.slice.call(arguments, 0); 
...

function Map(compareFunction) {
    this.keyArray = [];
    this.valArray = [];
    this.compareFunction = compareFunction;
Map.prototype.put = function(key, val) {
    var elementIndex = this.findKey(key);
    if (elementIndex === (-1)) {
        this.keyArray.push(key);
...