Nodejs Array Contain contains(element)

Method Source Code

'use strict';//from   ww  w  . j a  va 2 s.c o  m

// Prototype for Array contains
Array.prototype.contains = function(element) {
    return this.indexOf(element) > -1;
};

Related

1. contains(elem)

   Array.prototype.contains = function(elem) {
     return this.indexOf(elem) >= 0
   

2. contains(element)

   Array.prototype.contains = function(element) {
     return this.indexOf(element) >= 0;  
   };
   

3. contains(element)

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

4. contains(element)

   Array.prototype.contains = function(element){
       return $.inArray(element, this);
   };
   

5. contains(element)

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

6. contains(element)

   Array.prototype.contains = function (element) {
      for (i in this)
          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) {
       var i = this.length;
       while(i--) {
           if (_.isEqual(this[i], element)) {
               return true;
       return false;
   

9. 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]';
   };