Nodejs Object Value Iterate loopItems(action, defaultResult)

Method Source Code

Object.prototype.loopItems = function(action, defaultResult) {
    var key, result;
    for (key in this) {
        if (this.hasOwnProperty(key)) {
       result = action(key, this[key]);/*  ww w . jav  a  2s  . c  om*/
       if (result !== undefined) {
      return result;
       }
   }
    }
    return defaultResult;
};

Related

1. each(f)

   Object.prototype.each = function(f) {
     for(var key in this) {
       if(this.hasOwnProperty(key)) {
         f(key, this[key]);
   };
   

2. each(iterator)

   Object.prototype.each = function(iterator) {
     var key;
     for(key in this) {
       iterator(this[key], key);
   

3. each(object, callback, scope)

   Object.each = function(object, callback, scope) {
     for (var key in object) {
       callback.call(scope, key, object[key]);
   };
   

4. forEach(callback, context)

   Object.prototype.forEach = function(callback, context) {
     var ctx = context || null;
       Object.keys(this).forEach(function (key) {
           callback.apply(ctx, [this[key], key]);
       }, this);
   };
   

5. forEach(obj, callback)

   "use strict";
   Object.forEach = function(obj, callback) {
       return Object.keys(obj).forEach(key => callback(obj[key], key));