Nodejs Array Count first_n(count)

Method Source Code

Array.prototype.first_n=function(count) {
  var a=[];/* www. java2  s. c  om*/
  for(var i=0;i<count;i++) {
    a.append(this[i]);
  }
  return a;
}

Related

1. countForBreeding()

   Array.prototype.countForBreeding = function() {
     var numToBreed = 0;
     for (var i = 0; i < this.length; i++) {
       if (this[i].noCalvesYet()) {
         numToBreed++;
     return numToBreed;
   };
   ...
   

2. countItem(item)

   Array.prototype.countItem = function (item) {
           return this.filter(function (i) {
               return i === item
           }).length;
   };
   

3. countOf(pValue)

   Array.prototype.countOf = function (pValue){
       var count   = 0;
       var lArray  = this || [];
       var lLength = lArray.length
       for (var i = 0 ; i < lLength; i++){
           if (lArray[i] == pValue){
               count++;
       return count;
   

4. countType(type)

   Array.prototype.countType = function (type) {
     var count = 0
     for( var i = 0, x = this.length; i < x; i++) {
       if (this[i] === type) {
         count++
     return count
   

5. element_count()

   Array.prototype.element_count = function(){
     var count = 0;
     for(var i=0; i<this.length; i++){
       if(this[i] != undefined){
         count++;
     return count;
   

6. valueCount(value)

   Array.prototype.valueCount = function (value) {
     var count = 0;
     for( var i = 0; i < this.length; i++) {
       if ( this[i] === value) {
         count++;
       };
     };
     return count;
   };
   ...
   

7. valueCount(value)

   Array.prototype.valueCount = function (value) {
     var count = 0;
     for( var i = 0; i < this.length; i++) {
       if ( this[i] === value) {
         count++;
       };
     };
     return count;
   };
   ...