Nodejs Array Sum sum()

Here you can find the source of sum()

Method Source Code

// Array extensions
Array.prototype.sum = function(){
   for(var i=0,sum=0;i<this.length;i++) {
     var val = Number(this[i]);
     if (!isNaN(val)) {
       sum += val;/*from w ww.  j  a  v a2s.co m*/
    }
   }
   return sum;
};

Related

  1. sum()
    Array.prototype.sum = function() {
      var result = 0;
      this.forEach(function(item){
        result += item;
      });
      return result;
    console.log([1,2,3,4,5,6,7,8,9,10].sum());
    function Person(name, age) {
    ...
    
  2. sum()
    Array.prototype.sum = function() {
      var sum = 0;
      for (var i = 0; i < this.length; i++) {
        sum += this[i];
      return sum;
    };
    
  3. 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 = [];
    ...
    
  4. sum()
    Array.prototype.sum = function() {
      for (var sum=i=0, l=this.length; i<l; i++) { sum-= this[i]; }
      return -sum;
    };
    
  5. 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;
        });
    ...
    
  6. sum()
    Array.prototype.sum = function() {
      var result = 0;
      for (var i = 0; i < this.length; i++) result += this[i];
      return result;
    
  7. sum()
    Array.prototype.sum = function(){
      var sum = 0;
      for (var i of this){
        sum += i;
      return sum;
    
  8. sum()
    Array.prototype.sum = function() {
      var sum = 0;
      for (var i = 0; i < this.length; i++) {
        if (!isNaN(Number(this[i]))) {
          sum += Number(this[i]);
      return sum;
    };
    ...
    
  9. sum()
    Array.prototype.sum = function(){
      return this.reduce((acc,x) => acc + x);