Introduction to OOP's in JS
OOP's stands for Object Oriented Programming. It is a programming paradigm that revolves around the concept of objects and classes. In OOP's, we define a class with properties and methods, and then create objects from that class. Each object has its own set of attributes (data) and methods (functions) that can be used to interact with the object. OOP's is a powerful tool for building complex software systems, as it allows us to model real -world objects and their interactions in a more intuitive and flexible way.
What is an Object?
An object is an instance of a class. It has its own set of attributes (data) and methods (functions) that can be used to interact with the object. Objects are the basic building blocks of OOP's, and they are used to model real-world objects and their interactions.
What is a Class?
A class is a blueprint or a template that defines the properties and methods of an object. It is a way to define a set of attributes and methods that can be used to create objects. Classes are the foundation of OOP's, and they are used to model real-world objects and their interactions.
JavaScript supports OOP principles such as:
Encapsulation
Inheritance
Abstraction
Polymorphism
Encapsulationis
Encapsulation is the concept of bundling data and methods that operate on that data within a single unit, called a class or object. This helps to hide the implementation details of an object from the outside world, making it easier to modify or extend the object without affecting other parts of the program .
Inheritance
Inheritance is the concept of creating a new class based on an existing class. The new class inherits all the properties and methods of the existing class and can also add new properties and methods or override the ones inherited from the parent class.
Abstraction
Abstraction is the concept of showing only the necessary information to the outside world while hiding the implementation details. In OOP's, abstraction is achieved through the use of abstract classes and interfaces.
Polymorphism
Polymorphism is the concept of having multiple forms of a function or method. In O OP's, polymorphism is achieved through method overriding or method overloading.
Why we use OOP's
There are several reasons why we use OOP's:
It helps us create programs based on real-life objects.
We can reuse the same code instead of writing it again.
It keeps data safe by hiding the internal details.
It makes big programs easier to manage and update.
It organizes code in a clean and simple way.