Nodejs Array Value aggregate(initialValue, aggregateItemCallback)

Method Source Code

Array.prototype.aggregate = function (initialValue, aggregateItemCallback) {
   var result = initialValue; 
   this.each(function (item) {
      result = aggregateItemCallback(result, item);
   })/*from   ww w  . ja  v  a2 s . c o  m*/
   
   return result;
}

Related

1. allValuesSame()

   Array.prototype.allValuesSame = function() {
       for(var i = 1; i < this.length; i++)
           if(this[i] !== this[0])
               return false;
       return true;
   

2. allValuesSame()

   Array.prototype.allValuesSame = function() {
     for(var i = 1; i < this.length; i++)
       if(this[i] !== this[0])
         return false;
     return true;
   

3. allValuesSame()

   var canvas = {};
   Array.prototype.allValuesSame = function() {
     for(var i = 1; i < this.length; i++) {
         if(this[i] !== this[0])
             return false;
     return true;
   

4. byField(field, value)

   Array.prototype.byField = function(field, value) {
     return this.filter(function ( obj ) {
       return obj[field] == value;
     })[0]