Nodejs Array Sum sum()

Method Source Code

/**//from  w ww . j  a va2  s.  c om
@Name: Array.prototype.sum
@Author: Paul Visco
@Version: 1.1 11/19/07
@Description: Add up the values in an array

@Return: Number Returns the sum of all the values in an array
@Example:
var myArray = [5, 5, 10, 15];
var answer = myArray.sum();
//answer =35;
*/
Array.prototype.sum = function(){
   var val = 0;
   this.forEach(function(v){
      val +=v;
   });
   return val;
};

Related

1. 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.first = function(){
     return this[0];
   ...
   

2. sum()

   Array.prototype.sum = function () {
     return this.reduce(function(sum, val){ 
       return sum + val
     })
   console.log([1, 2, 3, 4].sum());
   

3. sum()

   Array.prototype.sum = function() {
     return this.reduce((result, element) => result + element, 0);
   };
   

4. sum()

   function range(a, b) {
       return [...Array(b-a).keys()].map(x => x + a);
   Array.prototype.sum = function() {
       return this.reduce((a, b) => a + b, 0);
   module.exports = function(n) {
       var sumOfSquares = range(1,101).map(x => x*x).sum();
       var squareOfSum = Math.pow(range(1,101).sum(), 2);
   ...
   

5. sum()

   Array.prototype.sum = function() {
     return this.reduce(function(p, c, i, arr) {
       return p + c;
     });
   };
   var a = [];
   process.stdin.resume();
   process.stdin.setEncoding("utf8");
   process.stdin.on("data", getNum);
   ...
   

6. sum()

   Array.prototype.sum = function () {
       var total = 0;
       var i = this.length;
       while (i--) {
           total += this[i];
       return total;
   function isEmpty(obj) {
   ...
   

7. sum()

   Array.prototype.sum = function () {
     return this.reduce((sum, n) => sum + Number(n), 0)
   

8. sum()

   Array.prototype.sum = function () {
     return this.reduce(function (total, aValue) {
       return total + Number(aValue);
     });
   };
   

9. sum()

   var log = console.log.bind(console)
   Array.prototype.sum = function() {
       return this.reduce(function(previous, current) {
           return previous + current
       })
   var numbers = [1, 2, 3, 4, 5, 6]
   var result = numbers.sum()
   log(result)
   ...