Nodejs Array Sum sum()

Method Source Code

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

Related

1. sum( iterator )

   Array.prototype.sum = function ( iterator ) {
     "use strict";
     var i = ( typeof iterator === "undefined" ) ?  0 : iterator,
       total = 0;
     if ( this[ i ] instanceof Array ) {
       for ( i; i < this.length; i++) {
         total += this[i].sum();
     else {
       for (i = 0; i < this.length; i++) {
         total += this[i];
     return total;
   };
   

2. sum()

   Array.prototype.sum = function() {
     return this.reduce(function(a,b){return a+b;});
   };
   

3. sum()

   Array.prototype.sum=function(){
     var suma;
     for(var i=0;i<this.lenght;i++){
       suma=suma+this[i];
     return suma;
   

4. sum()

   Array.prototype.sum = function () {
     let s = 0;
     for (let i = 0; i < this.length; i++) {
       s += this[i];
     return s;
   };
   

5. sum()

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

6. sum()

   Array.prototype.sum = function() {
       var res = 0;
       for(var p in this)
     res += this[p];
       return res;
   };
   var s = [1, 2, 3].sum();
   

7. sum()

   Array.prototype.sum = function() {
     return this.reduce(function(prev, curr) {
       return prev + curr;
     });
   };
   module.exports = Array.prototype.sum;
   

8. sum()

   Array.prototype.sum  = function() {
       var res = 0;
       for(var p in this)
     res += this[p];
       return res;
   };
   var a = [1, 2, 3];
   console.log(0 in a);