Encapsulation is an OOP concept that means keeping data and the methods that use that data together in one place.
It also means protecting important data from being accessed or changed directly from outside the object.
Encapsulation helps make programs safer, more predictable, and easier to maintain.
Why Encapsulation is Important
- Protects important data
- Prevents accidental changes
- Improves code security
- Makes debugging easier
- Helps manage large projects
Encapsulation is a key principle of professional software design.
Here, the balance can be changed directly from outside the class.
This can lead to serious bugs and security issues.
Here, the balance is accessed only through methods.
This ensures that changes are controlled and safe.
These examples show how encapsulation protects data and controls access.
By mastering encapsulation, students gain the ability to build secure, reliable, and professional JavaScript applications using proper OOP principles.