Nodejs Array Count countCattle(cattle)

Method Source Code

// After/*from  www.  ja v a  2 s. co  m*/

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

Related

1. count(filter)

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

2. 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 = [];
   ...
   

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. 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;
   };
   ...
   

5. 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;
   };
   ...
   

6. countCattle(kind)

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

8. 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'))
   

9. countCattle(kind)

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