Nodejs Array None Predicate none(p)

Method Source Code

Array.prototype.none = function (p) {
if(this.length == 0){
      return true;
   }/*from w w  w. j a  v a  2  s.  c o m*/
     for(var i=0;i<this.length;i++){
        if(p(this[i]) === true){
           break;
        }
        else
           return true;
     }
  return false;
};

Related

1. none(p)

   Array.prototype.none = function (p) {
     var count = 0
     for (var i = 0 ; i < this.length ; i++) {
       currentIndex = this[i]
       if (p(currentIndex) !== true) {
         count +=1 
       };
     if (count !== this.length) {
   ...
   

2. none(p)

   Array.prototype.none = function(p) {
       var count = 0
       for (var i = 0; i < this.length; i++) {
           currentIndex = this[i]
           if (p(currentIndex) !== true) {
               count += 1
           };
       if (count !== this.length) {
   ...
   

3. none(p)

   Array.prototype.none = function (p) {
     for(var i = 0; i < this.length; i++){
       if(p(this[i])) return false;
     return true;
   };
   

4. none(p)

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

5. none(p)

   Array.prototype.none = function (p) {
     for (i = 0; i < this.length; i++)
       if (p(this[i])) return false;
     return true;
   };
   

6. none(p)

   Array.prototype.none = function (p) {
     for(let el of this){
       if(p(el)) {return false;}
     return true;
   };