Nodejs Array Empty empty()

Method Source Code

Array.prototype.empty = function() {
    return !this.length;
}

var a = [];//w  ww .  j a v a 2s .co m
if (a.empty()) {
    console.log('losing');
}

// Good example
var a = [];
if (!a.length) {
    console.log('winning');
}

Related

1. empty()

   Array.prototype.empty = function () {
     return(this.size() < 1) }
   

2. empty()

   Array.prototype.empty = function () {
     return !(this.length > 0)
   };
   

3. empty()

   Array.prototype.empty = function(){
       return this.length === 0;
   };
   

4. empty()

   Array.prototype.empty = function() {
     return this.length == 0;
   

5. empty()

   Array.prototype.empty = function(){
     this.length =0;
     return this;
   };
   

6. empty()

   Array.prototype.empty = function() {
     return this.length <= 0;
   

7. empty()

   var helpers = {
       generateRandomNumber: function(maxLength) {
           return Math.floor(Math.random() * ++maxLength);
       },
     detectRectangleIntersect: function(b1, b2) {
       return !( (b1.top > b2.bottom) || (b1.bottom < b2.top)
           || (b1.right < b2.left) || (b1.left > b2.right) );
     },
     getUniqueId: (function () {
   ...
   

8. empty()

   Array.prototype.empty = Array.prototype.empty || function() {
       return this.length == 0;
   };
   

9. empty()

   Array.prototype.empty = function(){
     return this.trim().length === 0;