Nodejs Array ForEach forEach(func)

Method Source Code

/**/* w ww.j  a  v a  2  s  . co  m*/
 * forEach is a method of Array  to execute for each element of an Array
 *
 * @param func       a Function, accepte one argument, the array element
 * @return           Void;
 */
Array.prototype.forEach = function(func)
{
  for(var i = 0, l = this.length; i < l; i ++)
  {
    func(this[i]);
  }
};

Related

1. forEach(fn, context)

   Array.prototype.forEach = function(fn, context) {
     if (typeof fn != "function") {
       throw new TypeError(fn + " is not a function");
     if (typeof context === 'undefined') {
       context = this;
     for (var i = 0, l = this.length; i < l; ++i) {
       fn.call(context, this[i], i, this);
   ...
   

2. forEach(fun /*, thisp */)

   Array.prototype.forEach = Array.prototype.forEach || function(fun ) {
     "use strict";
     if (this === void 0 || this === null) throw new TypeError();
     var t = Object(this);
     var len = t.length >>> 0;
     if (typeof fun !== "function") throw new TypeError();
     var thisp = arguments[1];
     for (var i = 0; i < len; i++) {
       if (i in t) fun.call(thisp, t[i], i, t);
   ...
   

3. forEach(fun /*, thisp*/)

   Array.prototype.forEach = function(fun )
       var len = this.length;
       if (typeof fun != "function")
         throw new TypeError();
       var thisp = arguments[1];
       for (var i = 0; i < len; i++)
         if (i in this)
   ...
   

4. forEach(fun /*, thisp*/)

   Array.prototype.forEach = Array.prototype.forEach || function(fun ) {
       var len = this.length >>> 0;
       if (typeof fun != "function") {
           throw new TypeError();
       var thisp = arguments[1];
       for (var i = 0; i < len; i++) {
           if (i in this) {
               fun.call(thisp, this[i], i, this);
   ...
   

5. forEach(fun, thisp)

   Array.prototype.forEach = function(fun, thisp) {
     "use strict";
     if (this === void 0 || this === null) {
       throw new TypeError();
     var t = Object(this);
     var len = t.length >>> 0;
     if (typeof fun !== "function") {
       throw new TypeError();
   ...
   

6. forEach(func)

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

7. forEach(func, thisObj)

   Array.prototype.forEach = Array.prototype.forEach || (Array.prototype.forEach = function(func, thisObj) {
     for (var i=0, l=this.length; i<l; ++i) {
       func.call(thisObj, this[i], i, this);
     };
   });
   

8. forEach(iterator)

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

9. forEach(predicate)

   Array.prototype.forEach = function(predicate)
     for (var i = 0; i < this.length; i++)
       predicate(this[i]);
   Array.prototype.contains = function(o)
     return this.indexOf(o) >= 0;