not able to acces private method through privilaged methods in javascript

Question

Error : undefined error in console, while trying to print age function

 var Person = function( myName, myProfession, myage ){ this.name = myName; // Public Variable this.profession = myProfession; var age = myage; // Private Variable this.myAge = function(){ // Privilaged Method return this.age; }; }; var syed = new Person('syed azam','developer',20); console.log(syed + "works fine"); console.log(syed.myAge()); 

 <script src="https://getfirebug.com/firebug-lite-debug.js"></script> 

Answer 1

What is this.age ? You did not encapsulate it correctly:

this.myAge = function(){
    return myage;
};

Note that you don't have to use var age = myage; . DEMO.