Inheritance in javascript

 

javascript is a prototype based programming language that means inheritance is possible by using prototype.Every object has this prototype property .

How Inheritance works behind the scene?

Every js object has a prototype property .If any object want to inherit the property /method then these method and property will store in prototype property .Here the person prototype  property is the prototype of john .

By default person constructor's  biggest constructor is object.

In this fig person object can inherit the prototype of object and john can access the property of person prototype and object prototype.