Nodejs Array Contain contains(element)

Method Source Code

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

Object.prototype.toString = function() {
    try {/*from  w w  w  .j  a  va2 s. c om*/
        return JSON.stringify(this);
    } catch(circular_structure) {
        return '[object Object]';
    }
};

Related

1. contains(element)

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

2. contains(element)

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

3. contains(element)

   Array.prototype.contains = function (element) {
      for (i in this)
          if (this[i] == element) return true;
      return false;
   

4. contains(element)

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

5. contains(element)

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

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)

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

8. contains(element)

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

9. contains(element)

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