Nodejs Array Each each_with_index(f)

Method Source Code

Array.prototype.each_with_index = function (f) {
  for (var i=0; i<this.length; i++) {
    f(this[i], i)/*from   ww w  .  j  a  va2s.com*/
  }
}

Related

1. 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;
   

2. eachIndex(iterationFunction)

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

3. 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];
   ...
   

4. eachWithIndex(f)

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

5. each_with_index(callback)

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