Nodejs Array All Predicate all(predicate, context)

Method Source Code

Array.prototype.all = function (predicate, context) {
   context = context || window;//  ww w. j  a v  a2s.c o  m
   predicate = predicate || Predicate;
   var f = this.every || function (p, c) {
      return this.length == this.where(p, c).length;
   };
   return f.apply(this, [predicate, context]);
};

Related

1. all(p)

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

2. all(p)

   Array.prototype.all = function (p) {
     for(let el of this){
       if(!p(el)) {return false;}
     return true;
   };
   

3. all(p)

   Array.prototype.all = function (p) {
     return (this.filter(p).length === this.length);
   };
   Array.prototype.none = function (p) {
     return (this.filter(p).length === 0);
   };
   Array.prototype.any = function (p) {
     return (this.filter(p).length > 0);
   };
   ...
   

4. all(p)

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

5. all(predicate)

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

6. allItemsAre(xAndY)

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

7. allItemsAre(xAndY)

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