Nodejs Array Each each(func)

Method Source Code

// Ruby = [4, 5, 6].each { |element| puts "#{element}" }
// JS = [4, 5, 6].each(function(index) { alert(index + ": " + this); })
Array.prototype.each = function(func) {
  function each(array, func) {
  for (var i=0; i<array.length; ++i) {
    func.call(array[i], i);/*w  w w  . j a va 2  s  . c o m*/
  }
}
 each(this, func); 

};

Related

1. 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();
   };
   

2. 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;
   };
   ...
   

3. each(fun)

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

4. each(fun)

   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;
   ...
   

5. each(func)

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

6. each(func)

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

7. each(func)

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

8. each(func, scope)

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

9. each(handler, context)

   Array.prototype.each = function (handler, context) {
       var size = this.length
       if (typeof context == "undefined") context = this
       for (var i = 0; i < size; i++) {
           if (handler.call(context, this[i], i) == false) break