Nodejs Array Sum sum()

Method Source Code

//https://softuni.bg/trainings/resources/video/2217/video-29-oktomvri-2014-vladimir-georgiev-javascript-oop-oct-2014
Array.prototype.sum = function() {
   var result = 0;
   this.forEach(function(item){
      result += item;/*w  w  w.  j  a  va  2  s  .co m*/
   });

   return result;
}

console.log([1,2,3,4,5,6,7,8,9,10].sum());

function Person(name, age) {
   this._name = name;
   this._age = age;
   this.getName = function() {
      return this._name;
   }
   this.getAge = function() {
      return this._age;
   } 
}

Person.prototype.sayHello = function() {
   console.log('Hello from', this._name)
}

function Actress(name, age, fetish) {
   this._fetish = fetish;
   Person.apply(name,age);
   this.dominate = function() {
      console.log(fetish + ' doing');
   }
}

//function for inheritance or extension
Object.prototype.extends = function(parent) {
   this.prototype = Object.create(parent.prototype);
   this.prototype.constructor = this;
}

Actress.prototype = Object.create(Person.prototype);
Actress.prototype.constructor = Actress;

var masuimi = new Person('Masuimi Max', 32);
masuimi.sayHello();
console.log(masuimi.getName());

var masuimiPorn = new Actress()

Related

1. sum()

   Array.range = function(start, count) {
     var newArray = [];
     for( var i = 0, j = start; i< count; i++, j++)
       newArray.push(j);
     return newArray;
   Array.prototype.sum = function () {
       var sum = 0;
       this.forEach(function (value) {
   ...
   

2. sum()

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

3. sum()

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

4. sum()

   Array.prototype.sum = function(){
     var ret = this[0];
     for(var i=1;i<this.length;i++){
       ret += this[i]
     return ret;
   

5. sum()

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

6. sum()

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

7. sum()

   Array.prototype.sum = function() {
       var total = 0;
       for (var i = 0; i<this.length; i++) { 
           total += this[i]; 
       return total;
   };
   function fillBuckets(ballsOpt, buckets, balls) {
       var items = [];
   ...
   

8. sum()

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

9. sum()

   Array.prototype.sum = function() {
     if (this.length === 0) {
       return 0;
     } else if (this.length === 1) {
       return parseInt(this[0], 10);
     } else {
       return this.reduce(function(x, y) {
         return x + y;
       });
   ...