Nodejs Array Contain contains(obj)

Here you can find the source of 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;
    };