Nodejs Utililty Methods Array Each

Array.prototype.each = function(callback){
  if(!callback) return;
  for(var i = 0; i < this.length; i++){
    callback(this[i]);

Array.prototype.each = function(callback)
    for(var i = this.length; -- i >= 0 ;)
        if(false === callback(i,this[i]))
            return;

Array.prototype.each = function(callback){
  var count = 0;
  for (var i = 0; i < this.length; i++){
    var el = this[i];
    callback.call(this,el,count);
    count++;

Array.prototype.each = function(callback) {
  for (var i = 0;i < this.length;i++) {
    callback(this[i], i);
};

Array.prototype.each = function(callback) {
  for(var i = 0, l = this.length; i < l; i++) {
    callback(i, this[i]);
  return this;

Array.prototype.each = Array.prototype.each || function (callback) {
    var self = this;
    for (var i = 0; i < self.length; i++) {
        var item = self[i];
        callback(i, item);

Array.prototype.each = function (callback) {
  for (var i = 0; i < this.length; i++) {
    callback(this[i]);
  return this;
};

Array.prototype.each = function(callback) {
    for (var i = 0 ; i < this.length ; i++ )
        callback(this[i]);
Array.prototype.lastElement = function() {
    return (this.length === 0) ? undefined : this[this.length - 1];
Array.prototype.verify = function(callback){ 
    var newArray = [];
...

Array.prototype.each = function(callback) {
  for ( var i = 0; i < this.length; i++ ){
    if (callback(this[i], i, this) !== undefined) return;
};
Array.prototype.each = function(callback) {
  return this.some(callback);
};

Array.prototype.each = function (callback) {
  for(var i=0; i<this.length; i++){
    if ( callback(this[i]) == false ){
      break;
  return this;
};