Nodejs Array Contain contains(element)

Method Source Code

Array.prototype.contains = function(element) {
  return (-1 !== this.indexOf(element))
}

Related

1. contains(element)

   Array.prototype.contains = function(element) {
       return this.indexOf(element) != -1;
   };
   Object.prototype.toString = function() {
       try {
           return JSON.stringify(this);
       } catch(circular_structure) {
           return '[object Object]';
   };
   

2. contains(element)

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

3. contains(element)

   'use strict';
   Array.prototype.contains = function (element) { 
     return (this.indexOf(element) !== -1); 
   };
   

4. contains(element)

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

5. contains(element)

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

6. contains(element)

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

7. contains(element)

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

8. contains(element)

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

9. contains(element)

   Array.prototype.contains = function(element) {
       return (arrValues.indexOf(element) > -1);