Nodejs Array Contain contains(obj)

Method Source Code

/***********************************************
 * Adding contains functionality to the array. *
 ***********************************************/
Array.prototype.contains = function (obj) {
    return this.indexOf(obj) > -1;
};

Related

1. contains(obj)

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

2. contains(obj)

   Array.prototype.contains = function(obj) {
     var i = this.length;
     while (i--) {
       if (this[i] === obj) {
         return true;
     return false;
   };
   ...
   

3. contains(obj)

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

4. contains(obj)

   'use strict';
   Array.prototype.contains = function(obj) {
       var i = this.length;
       while (i--) {
           if (this[i] == obj) {
               return true;
       return false;
   ...
   

5. contains(obj)

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

6. contains(obj)

   Array.prototype.contains = function(obj) {
       var i = this.length;
       while (i--) {
           if (this[i] === obj) {
               return true;
       return false;
   };
   ...
   

7. contains(obj)

   Array.prototype.contains = function(obj) {
     var index = this.length;
     while (index--) {
       if (this[index] == obj) {
         return true;
     return false;
   };
   ...
   

8. contains(obj)

   'use strict';
   const list = require('./list.json');
   const items = [];
   const duplicates = [];
   Array.prototype.contains = function(obj) {
     let i = this.length;
     while (i--) {
       if (this[i] == obj) {
           return true;
   ...
   

9. contains(obj)

   Array.prototype.contains = function(obj) {
     let i = this.length;
     while (i--) {
       if (this[i] == obj) {
           return true;
     return false;