Here you can find the source of foreach(func)
/*****//from w w w .ja va 2 s . co m * * foreach * *****/ Array.prototype.foreach = function(func) { var length = this.length; for ( var i = 0; i < length; i++ ) { func(this[i]); } };
Array.prototype.foreach = function( callback ) { for( var k=0; k<this .length; k++ ) { callback( k, this[ k ] ); };
Array.prototype.foreach = function( callback ) { for( var k=0; k<this .length; k++ ) { callback( k, this[ k ] ); Object.prototype.foreach = function( callback ) { for( var k in this ) { if(this.hasOwnProperty(k)) { callback( k, this[ k ] ); ...
Array.prototype.foreach = function(callback) { for(var i in this) if(this.hasOwnProperty(i)) callback(this[i]); return this;
Array.prototype.foreach = function(callback) for (var i = 0; i < this.length; i++) callback(this[i]) Array.prototype.getRandomIndex = function() var n = Math.floor(Math.random()*this.length) return n Array.prototype.getRandomElement = function() var n = this.getRandomIndex() return this[n] var Arrays = { remove: function(obj, arr) { var index = arr.indexOf(obj); if (index != -1) arr.splice(index, 1); }, contains: function(obj, arr) { return arr.indexOf(obj) > -1; }, addIfAbsent: function(obj, arr) { if (!Arrays.contains(obj, arr)) { arr.push(obj); }, getRandomElement: function(arr) { var n = this.getRandomIndex(arr); return arr[n]; }, getRandomIndex: function(arr) { var n = Math.floor((Math.random()*arr.length)); return n; };
Array.prototype.foreach = function(fn) { for (let i = 0; i < len; i++) fn(this[i], i, this); };
'use strict'; const testArray = ['Bob', 'Mary', 'Lee', 'Snake', 'Jimbob']; Array.prototype._forEach = function(callback) { for (let i = 0; i < this.length; i++) { callback(this[i]); return this; }; testArray._forEach( item => { ...