Nodejs Object Size Get length()

Method Source Code

//array.prototype.
//this doesnt work, and I might just make a class called utilities to cover this class instead
Object.prototype.length=function(){
   var l=0;/*from  w  w  w . j a v a  2 s .  c  o  m*/
   for(var i in this){
      if(this.hasOwnProperty(i)){
         l++;
      }
   }
   return l;
}
/*Object.prototype.empty=function(){return this==null || this==undefined || this=='' || this.length()==0;}
Object.prototype.first_key=function(){if(!this.empty()){var k='';for (var key in this){k=key;break;};return k;}else{return null;}}
Object.prototype.type=function(){return 'object'}

Number.prototype.decimal=function(t){return Math.round(this*t)/t;}
Number.prototype.type=function(){return 'number'}*/

/*window.onload=function(){
   var temp_o = {'a':'1','b':'2','c':'3'};
   var temp_n = 2.34565;
   console.log(temp_o.first_key());
}
*/

Related

1. size(obj)

   Object.size = function(obj) {
       var size = 0, key;
       for (key in obj) {
           if (obj.hasOwnProperty(key)) size++;
       return size;
   };
   

2. size(obj)

   Object.size = function(obj) {
       var size = 0, key;
       for (key in obj) {
           if (obj.hasOwnProperty(key)) size++;
       return size;
   };
   

3. size(obj)

   Object.size = function(obj) {
       var size = 0, key;
       for (key in obj) {
           if (obj.hasOwnProperty(key)) size++;
       } return size;
   };
   

4. size(obj)

   Object.size = function(obj){
       var size = 0, key;
       for (key in obj) {
           if (obj.hasOwnProperty(key)) 
               size++;
       return size;
   };