Nodejs Array Count countCattle(kind)

Method Source Code

Array.prototype.countCattle = function(kind) {
  var numKind = 0;
  for (var i = 0; i<this.length; i++) {
    if (this.type == kind){
      numKind++;//from  w  ww.j ava2 s .  co m
    }
  }
  return numKind;
};

Related

1. count(n)

   Array.prototype.count = function(n) {
     var count = 0;
     for (var i = 0; i < this.length; i++) {
       if (this[i] == n) count++;
     return count;
   function primeFactors(n) {
     var f = [];
   ...
   

2. count(value)

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

3. count(value)

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

4. countCattle( kind )

   Array.prototype.countCattle = function ( kind ){
     var numKind = 0;
     for(var i = 0; i<this.length; i++){
       if(this[i].type == kind){
         numKind++;
     return numKind;
   };
   ...
   

5. countCattle(cattle)

   Array.prototype.countCattle = function(cattle){
     var number = 0;
     for(var i = 0; i < this.length; i ++){
       if(this[i].type == cattle){
         number ++ ;
     return number;
   };
   ...
   

6. countCattle(kind)

   Array.prototype.countCattle = function(kind) {
     var numKind = 0;
     for (var i = 0; i < this.length; i++) {
       if (this[i].type == kind) {
         numKind++;
     return numKind;
   };
   ...
   

7. countCattle(kind)

   Array.prototype.countCattle = function (kind) {
     var numKind = 0;
     for (var i = 0; i < this.length; i++) {
       if (this[i].type == kind) {
         numKind++
     return numKind
   var canyonCows = [
     { name: "Bessie", type: 'cow', hadCalf: 'Burt'},
     { name: "Bessie", type: 'bull', hadCalf: 'Burt'},
     { name: "Bessie", type: 'cow', hadCalf: 'Burt'},
     { name: "Bessie", type: 'cow', hadCalf: 'Burt'},
     { name: "Bessie", type: 'calf', hadCalf: null},
   ]
   console.log(canyonCows.countCattle('cow'))
   

8. countCattle(kind)

   Array.prototype.countCattle = function(kind) {
     var numKind = 0;
     for (i in this) {
       if (this[i]["type"] == kind) numKind++;
     return numKind;
   };
   

9. calculateCount()

   Array.prototype.calculateCount = function() {
       return this.length;
   };
   var a = ["1", "2"];
   var count = a.calculateCount();
   console.log(count);