Nodejs Array Each each(fun)

Method Source Code

/**/* w  w w.ja  v a2s  .c o  m*/
 * Created with JetBrains WebStorm.
 * User: mschwartz
 * Date: 12/24/12
 * Time: 2:59 PM
 *
 * GameEngine (C)2012-2013 Michael Schwartz. All rights reserved.
 */

function emptyFn() {}

function random(n) {
    return +n ? Math.floor(Math.random() * (n+1)) : Math.random();
}

Array.prototype.each = Object.prototype.each = Function.prototype.each = function(fun) {
    for (var key in this) {
        if (this.hasOwnProperty && this.hasOwnProperty(key)) {
            if (fun.call(this, this[key], key, this) === false) {
                return;
            }
        }
    }
};

Related

1. each(fn)

   Array.prototype.each = function(fn){
       fn = fn || Function.K;
        var a = [];
        var args = Array.prototype.slice.call(arguments, 1);
        for(var i = 0; i < this.length; i++){
            var res = fn.apply(this,[this[i],i].concat(args));
            if(res != null) a.push(res);
        return a;
   ...
   

2. each(fn)

   Array.prototype.each = function(fn) {
     for(var i = 0; i < this.length; i++) {
       fn(i, this[i]);
     };
   };
   

3. each(fn, last)

   Array.prototype.each = function(fn, last) {
       if (typeof fn != "function") return false;
       for (var index = 0; index < this.length; index++) {
               fn(this[index], index);
       if (last) last();
   };
   

4. each(fnCallback)

   Array.prototype.each = function(fnCallback) {
       var value = null;
       for (var elementIndex in this) {
           if (this.hasOwnProperty(elementIndex)) {
               value = fnCallback.apply(this[elementIndex], [elementIndex, value]);
       return (value) ? value : this;
   };
   ...
   

5. each(fun)

   Array.prototype.each = function(fun) {
       for (var i = 0; i < this.length; i++) {
           fun(this[i]);
   };
   

6. each(func)

   Array.prototype.each = function (func) {
       return _.each(this, func);
   };
   

7. each(func)

   Array.prototype.each = function(func) {
     function each(array, func) {
     for (var i=0; i<array.length; ++i) {
       func.call(array[i], i);
    each(this, func); 
   };
   

8. each(func)

   Array.prototype.each = function (func) {
     var arr = this;
     for (var i = 0; i < arr.length; i++) {
       func(arr[i]);
   

9. each(func)

   Array.prototype.each = function(func) {
     for(var i = 0; i < this.length; i++)
       func(this[i]);