Nodejs Array Sum sum()

Here you can find the source of sum()

Method Source Code

Array.prototype.sum = function() {
   var i;//from   w w  w  . j  a v a 2  s  .  c om
   var s:Number = 0;
   for (i=0; i < this.length; i++) {
      s += Number(this[i]);
   }
   return s;
}

var test = new Array(1, 2, 3);

console.print("Sum of Array(1, 2, 3) == 6: " + (test.sum() == 6));

Related

  1. sum()
    Array.prototype.sum = function() {
        var res = 0;
        for(var p in this)
      res += this[p];
        return res;
    };
    var a = [1, 2, 3];
    var all_in = true;
    for(var i=0;i<5;++i)
    ...
    
  2. sum()
    var ary1 = new Array(12, 55, 43, 32, 44);
    var ary2 = new Array(12, 33, 1);
    Array.prototype.sum = function() {
        var output = 0;
        for (var i = 0; i < this.length; i++) {
            output += this[i];
        return output;
    };
    ...
    
  3. sum()
    Array.prototype.sum = function(){
      for(var i=0,sum=0;i<this.length;sum+=this[i++]);
      return sum;
    
  4. sum()
    var numbers = [1,2,3,4,5,6];
    Array.prototype.sum = function(){
      return this.reduce(function(p, c){
        return p+c;
      })
    var result = numbers.sum();
    console.log(result);
    console.log(numbers);
    ...
    
  5. sum()
    Array.prototype.sum = function(){
      for(var i=0,sum=0;i<this.length;sum+=this[i++]);
      return sum;
    Array.prototype.max = function(){
      return Math.max.apply({},this)
    Array.prototype.min = function(){
      return Math.min.apply({},this)
    ...
    
  6. sum()
    'use strict';
    Array.prototype.sum = function () {
        var total = 0;
        var i = this.length;
        while (i--) {
            total += this[i];
        return total;
    };
    ...
    
  7. sum()
    Array.prototype.sum = function() {
      total = 0;
      for (var i=0;i < this.length;i++) {
        total += this[i];
      return total;
    };
      var a = [];
      for (var i=0;i < 1000;i++) {
    ...
    
  8. sum()
    var ary1 = new Array(12, 55, 43, 32, 44);
    var ary2 = new Array(12, 33, 1);
    Array.prototype.sum = function() {
        var output = 0;
        for (var i = 0; i < this.length; i++) {
            output += this[i];
        return output;
    };
    ...
    
  9. sum()
    Array.prototype.sum = function(){
      var sum = 0;
      for(var index in this){
        if(typeof this[index] === "number"){
          sum += this[index];
      return sum;
    var numbers = [1,2,3,4,5];
    console.log(numbers.sum());