Nodejs Array Each each( func )

Method Source Code

Array.prototype.each = function( func ) {
   for( var i=0; i<this.length; i++ ) {
      func( this[i], i );//from   w  w w .java  2  s  .c o  m
   }
   return this;
};

Related

1. each()

   Array.prototype.each = Array.prototype.forEach;
   Object.prototype.eachKey = function (cb) {
     var k = Object.keys(this);
     for (var i = 0; i < k.length; i++)
       cb(k[i], this[k[i]]);
   };
   var times = function (n, cb) {
     for (var i = 0; i < n; i++) cb(n);
   };
   ...
   

2. each()

   Array.prototype.each = function () {
     this.forEach.apply( this, arguments );
     return this;
   };
   

3. each(action)

   Array.prototype.each = function(action) {
     var args = getArgs(1,arguments);
     var arr = this;
      for (var i = 0, l = arr.length; i < l; ++i) {
           action.apply(this,[arr[i],i].concat(args));
   };
   

4. each(action)

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