Nodejs Array Collect collect( func )

Method Source Code

Array.prototype.collect = function( func ) {
   if( $.isFunction(func) ) {
      var _arr = [];
      for( var i=0; i<this.length; i++ ) {
         var item = this[i];
         var o = func(item);
         if(o!=null) _arr.push(o);
      }/* w w  w  .  ja  va  2 s  .c o m*/
      return _arr;
   }
   else {
      console.log("Please pass a function when using collect","Error");
   }
};

Related

1. collect(collectFunction)

   Array.prototype.collect = function(collectFunction) {
       return this.inject([], function(result, element) {
           result.push(collectFunction(element));        
           return result;
       });
   };
   

2. collect(fn)

   Array.prototype.collect = function(fn) { 
     var result = [];
     for (var i = 0; i < this.length; i += 1) {
       result.push(fn(this[i]));
     return result;
   };
   

3. collect(fn)

   Array.prototype.collect = function(fn) {
     var a = [];
     for(var i = 0; i < this.length; i++) {
       a.push(fn(i, this[i]));
     };
     return a;
   };
   

4. collect(fun)

   Array.prototype.collect = function(fun) {
       var result = [];
       this.each(function(it) {
           result.push(fun(it));
       });
       return result;
   };