Nodejs Array Sum sum()

Method Source Code

Array.prototype.sum = function() {
   //return this.reduce(function(a,b) {return a+b}, 0);
   var n = 0;/*from w ww . j  a va 2 s .  c om*/
   this.forEach(function(e) {
      n += e;
   });
   return n;
};

Related

1. sum()

   Array.prototype.sum = function () {
     return this.reduce(function(a, b) {
       return a + b;
     });
   };
   console.log([1, 2, 3].sum());
   

2. sum()

   Array.prototype.sum = function () {
     return this.reduce(function (value, current) {
       return value + current;
     }, 0);
   };
   

3. sum()

   Array.prototype.sum = function () {
     return (!this.length) ? 0 : this.reduce((acc, value) => {
       return acc + value;
     });
   };
   

4. sum()

   Array.prototype.sum=function(){return this.reduce(function(s,n){return s+n})}
   function NumberAddition(str) {
     return str.replace(/[^\d]/g, ' ').split(' ').map(Number).sum();
   NumberAddition(readline());
   

5. sum()

   function extend(destination, source) {
       for (var property in source) {
           destination[property] = source[property];
       return destination;
   Array.prototype.sum = function() {
       var result = 0;
       for (var i = 0; i < this.length; i++) {
   ...
   

6. sum()

   Math.TAU = Math.PI * 2;
   Array.prototype.sum = function()
     for (var i = 0, L = this.length, sum = 0; i < L; sum += this[i++]);
     return sum;
   Array.prototype.product = function()
     for (var i = 0, L = this.length, product = 1; i < L; product =  product * this[i++]);
   ...
   

7. sum()

   Array.prototype.sum = function(){
     return this.reduce(function(sum, item){
       return sum + item;
     }, 0)
   function isInt(n){
       return Number(n) === n && n % 1 === 0;
   function isFloat(n){
   ...
   

8. sum()

   Array.prototype.sum = function() {
     var sum = 0;
     this.forEach(function(k) {
       sum += k;
     });
     return sum;
   };
   

9. sum()

   Array.prototype.sum = function()
     if (this.length < 1) {
       return Number.NaN;
     var sum = 0;
     this.forEach(function(a) {
       sum += a;
     });
   ...