Nodejs Array All Predicate all(p)

Method Source Code

// [1, 2, 3].all(isGreaterThanZero) => true
// [-1, 0, 2].all(isGreaterThanZero) => false
Array.prototype.all = function (p) {
  for (var i = 0 ; i < this.length ; i++) {
    currentIndex = this[i]//w w w. ja va  2s  . c o  m
    if (p(currentIndex) === false) {
      return false
    };
  }
  return true
};


Array.prototype.all = function (p) {
  return this.filter(p).length == this.length;
};

Related

1. all()

   Array.prototype.all = function(){
     return this.every(function(x){
       return !!x;
     });
   };
   

2. all(f)

   'use strict';
   Math.randomChoice = function(a) {
       return a[this.floor(this.random() * a.length)];
   Array.prototype.all = function(f) {
       for (var i = this.length - 1; i >= 0; --i) {
           if (!f(this[i])) return false;
       return true;
   ...
   

3. all(p)

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

4. all(p)

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

5. all(p)

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

6. all(p)

   Array.prototype.all = function (p) {
    return this.filter(p).length == this.length;
   };