Nodejs Array Each each(visitor)

Method Source Code

Array.prototype.each = function(visitor) {
   var iterator = this.getIterator();
   /*w  w  w  . ja  v  a  2 s  .  c om*/
   while (iterator.hasNext()) {
      var ret = visitor.call(this, iterator.next(), iterator.current);
      
      if (ret === false)
         break;
   }
}

Related

1. 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;
   

2. each(length, callback)

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

3. each(method)

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

4. 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;
   };
   ...
   

5. 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)
   

6. eachIndex(iterationFunction)

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

7. eachRecursive(fieldName, filterOrDoFun, doFun)

   Array.prototype.eachRecursive = function(fieldName, filterOrDoFun, doFun) {
     var filter = doFun ? filterOrDoFun : null;
     doFun = doFun || filterOrDoFun;
     var doArrayRecursive = function(arr) {
       if (!arr || !(arr instanceof Array)) {
         return;
       for (var i = 0; i < arr.length; i++) {
         var item = arr[i];
   ...
   

8. eachWithIndex(f)

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

9. each_with_index(callback)

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