Nodejs Array Has has()

Method Source Code

Array.prototype.has = function  {
  return this.indexOf(item) > -1
}

Related

1. has(e)

   Array.prototype.has = function(e) {
     for(var i = 0; i < this.length; i++)
       if((e.equals) ? e.equals(this[i]) : e === this[i])
         return true;
     return false;
   };
   

2. has(elem)

   Array.prototype.has = function(elem) {
     return this.indexOf(elem) !== -1;
   };
   

3. has(elm)

   Array.prototype.has = function(elm) {
     return~~ this.indexOf(elm);
   };
   

4. has(item)

   "use strict";
   Array.prototype.has = function (item) {
       return this.indexOf(item) > -1;
   };