Nodejs Array Contain contains(obj)

Method Source Code

/**/* w  w w  .  jav  a  2s  .co m*/
 * Returns true if array contains obj, false otherwise
 * @memberof module:ArrayFunctions
 * @param {object} obj Object to be checked
 * @returns {boolean}
 */
Array.prototype.contains = function(obj) {
    // TODO add object {} support
    var i = this.length;
    while (i--) {
        if (this[i] === obj) {
            return true;
        }
    }
    return false;
};

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)

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

4. contains(obj)

   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) {
       return this.indexOf(obj) > -1;
   };
   

6. contains(obj)

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

7. 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;
   ...
   

8. contains(obj)

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

9. contains(obj)

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