Nodejs Array Each each(length, callback)

Method Source Code

Array.prototype.each = function(length, callback) {
  if (typeof length == 'function') {
    callback = length;// www.j  a v a2s  . c o  m
    length = this.length;
  }
  for (var i=0; i < length; i++) {
    callback(this[i]);
  }
};

Related

1. each(func, scope)

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

2. 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
   

3. each(iterationFunction)

   Array.prototype.each = function(iterationFunction) {
       this.eachIndex(function(element, index) {
           iterationFunction(element);
       });
   };
   

4. each(iterator)

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

5. each(iterator, context)

   Array.prototype.each = function(iterator, context)
     for(var i = 0, length = this.length >>> 0; i < length; i++)
       if(i in this)
         if(iterator.call(context, this[i], i, this) === false)
           return;
   

6. each(method)

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

7. each(method)

   Array.prototype.each = function(method) {
     var _handBreak = false;
     function _break() { _handBreak = true; }
     for (var i = this.length - 1; i >= 0; i--) {
       if (_handBreak) return this;
       method.call(this, this[i], i, _break); 
     return this;
   };
   ...
   

8. each(method)

   Array.prototype.each = function(method) {
     var args = Array.prototype.slice.call(arguments,1)
     for (var i = 0; i < this.length; i++) {
       this[i][method].apply(this[i],args)
   

9. each(visitor)

   Array.prototype.each = function(visitor) {
     var iterator = this.getIterator();
     while (iterator.hasNext()) {
       var ret = visitor.call(this, iterator.next(), iterator.current);
       if (ret === false)
         break;