Encapsulation in JavaScript restricts direct access to some object components and bundles data with methods that operate on that data. It provides security through controlled access, hides implementation details while exposing behavior, and allows loose coupling by modifying implementations freely. Private members and methods can only be accessed within an object while public members and methods can be accessed anywhere and by anything. A demonstration of encapsulation in JavaScript was presented.

1. OBJECT ORIENTED PROGRAMMING
IN
JAVASCRIPT
(ENCAPSULATION)
-- Aditya Majety
FreeCodeCamp Lightning Talk
28-Mar-2017

2. AGENDA
 Encapsulation – What & Why
 Private vs Public Members in JavaScript
 Demo of Encapsulation in JavaScript

3. ENCAPSULATION – WHAT & WHY
 What is Encapsulation:
 A mechanism of restricting direct access to some of the object’s components.
 A mechanism of bundling data with methods that operate on that data.
 Why Encapsulation:
 Security – Controlled access.
 Hide Implementation and Expose Behaviour.
 Loose Coupling – Modify the implementation anytime.

4. PRIVATE VS PUBLIC MEMBERS
 Private :
 Private Members can only be accessed inside the Object.
 Private Methods can only access Private Members and not Public ones.
 Public :
 Public Members can be accessed anywhere using the dot notation.
 Public Methods can access both public and private members.

5. DEMO OF ENCAPSULATION

6. DEMO OF ENCAPSULATION – CONTD…
Output

7. THANK YOU