Nodejs Utililty Methods Array All Predicate

Array.prototype.all = function (p) {
  for (var i = 0; i <this.length; i++){
    if (p(this[i]) === false){
      return false;
  return true;
};

Array.prototype.all = function(predicate){
  for (var i = 0; i < this.length; i++){
    if (!predicate(this[i])) {
      return false
  return true

Array.prototype.all = function (predicate, context) {
  context = context || window;
  predicate = predicate || Predicate;
  var f = this.every || function (p, c) {
    return this.length == this.where(p, c).length;
  };
  return f.apply(this, [predicate, context]);
};

Array.prototype.allItemsAre = function(xAndY){
   for(var i = 0; i < this.length; i++)
    if(!xAndY(this[i])){
      return false;
  return true;

Array.prototype.allItemsAre = function(xAndY){
     for(var i = 0; i < this.length; i++)
    if(!xAndY(this[i])){
      return false;
  return true;