Nodejs Array Count count()

Method Source Code

Array.prototype.count = function () {
    var temp = {};
    for (var i = 0; i < this.length; i++) {

        if (!(temp[this[i]])) {
            temp[this[i]] = 1;/*from  w w w.j ava 2  s  .c  om*/
        } else {
            temp[this[i]]++;
        }
    }

    return temp;
}

Related

1. count()

   Array.prototype.count = function(){
       return this.length;
   };
   

2. count()

   Array.prototype.count = function () {
       return this.length;
   let numbers = [1,2,3,4];
   let moreNumbers = new Array(1,2,3,4);
   console.log(numbers.count());
   console.log(moreNumbers.count());
   

3. count()

   function letterCapitalize(string) {
       var stringArray = string.split(" ");
       var sentence = stringArray.map(function(word) {
           var firstLetter = word[0];
           var otherLetters = word.slice(1);
           var capFirst = firstLetter.toUpperCase();
           return capFirst + otherLetters;
       })
       return sentence.join(" ");
   ...
   

4. 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;
   ...
   

5. 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 = [];
   ...
   

6. 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;
   };
   ...