TypeScript for Beginners - Encapsulation

Encapsulation is a key concept in object-oriented programming that involves protecting an object's properties and functionality from other objects. It is often visualized as a capsule containing data and methods. In most object-oriented languages, this capsule is referred to as a class. Proper encapsulation ensures that data can only be accessed through specific methods, maintaining the integrity and security of the data. Encapsulation can also be defined as combining data and code into a single unit.

What is the primary purpose of encapsulation in object-oriented programming?

• To allow unrestricted access to object data

• To protect the properties and functionality of an object

• To increase the speed of the program

• To make the code more complex

Which metaphor is used to explain encapsulation in the video?

• A book

• A computer

• A car

• A capsule

In object-oriented languages, what is the term used for the capsule that contains properties and methods?

• Package

• Module

• Class

• Function

How do other objects access the data of an encapsulated object?

• Through the methods and functionality

• By using global variables

• Directly through the properties

• By bypassing the class

What is another way to define encapsulation?

• Separating data and code into different units

• Combining data and code into one single unit

• Using only public methods

• Eliminating all private variables