Nodejs Array Item Occurrence numberOfOccurrences(number)

Here you can find the source of numberOfOccurrences(number)

Method Source Code

Array.prototype.numberOfOccurrences = function(number) {
  return this.reduce(function (previous, current) {
    return (current === number) ? ++previous : previous;
  }, 0);/*from  w  w  w  .ja  v  a 2 s.  c  o m*/
};

Related

  1. numberOfOccurrences(item)
    Array.prototype.numberOfOccurrences = function(item) {
    var drr = []; 
    var i = 0 ;
       for(i = 0 ; i < this.length ; i++) {
           if(item=== this[i]){
               drr.push(this[i]); 
        return drr.length;
    ...
    
  2. numberOfOccurrences(item)
    var arr = [4, 0, 4];
    Array.prototype.numberOfOccurrences = function(item) {
      tmp = 0;
      for(var i=0; i<this.length; i++){
        if (item == this[i]) {
          tmp ++;
      console.log(tmp);
    ...
    
  3. numberOfOccurrences(n)
    Array.prototype.numberOfOccurrences = function(n) {
      var counter = 0;
      for (i = 0; i < this.length; i++){
        if (n == this[i]){
          counter++;
      return counter;
    
  4. numberOfOccurrences(num)
    Array.prototype.numberOfOccurrences = function(num) {
        return this.filter(function(item){return item==num;}).length;
    
  5. numberOfOccurrences(num)
    Array.prototype.numberOfOccurrences = function (num) {
      var output = 0;
      for (var i=0; i<this.length; i++) {
        if (this[i] === num) {
          output++;
      return output;
    };
    ...
    
  6. numberOfOccurrences(search)
    Array.prototype.numberOfOccurrences = function (search) {
      return this.filter(function (num) { return search === num }).length;
    
  7. numberOfOccurrences(search)
    Array.prototype.numberOfOccurrences = function(search) {
      return this.filter( function(num){ return search === num } ).length;
    
  8. numberOfOccurrences(target)
    Array.prototype.numberOfOccurrences = function(target) {
      for(var i =0;i<this.length;i++){
        var x = this.filter(function(b){return b === target}).length
      return x;
    
  9. numberOfOccurrences(val)
    Array.prototype.numberOfOccurrences = function(val) {
      var count = 0;
      for(var i = 0; i < this.length; i++){
        if(this[i] === val){
          count++;
      return count;