JavaScript’s class system, introduced in ES6, has revolutionized the way we write object-oriented code. One of the most powerful features of classes is the ability to extend them using the extends keyword.
In this article, we'll dive deep into class inheritance and explore practical examples to help you master this essential JavaScript concept.
Understanding Class Inheritance
In JavaScript, the extends keyword allows you to create a new class (the "child" class) based on an existing class (the "parent" class). The child class inherits all the properties and methods from the parent class, and can also add or override its own.
This inheritance hierarchy creates a powerful way to organize and reuse code. By building upon the foundation of a parent class, you can create specialized child classes that share common functionality, while still having the flexibility to add unique behaviors.
Extending Classes: Syntax and Examples
Let’s start with a simple example. Imagine we have a Vehicle class that represents a generic vehicle:
class Vehicle {…