Inheritance in JavaScript

Inheritance allows creating a subclass that inherits properties and methods from a parent class. This enables code reuse and the creation of specialized versions of classes.

Example: Inheritance with Animal and Dog Classes

JavaScript
class Animal {
  constructor(name) {
    this.name = name;
	
  }

  makeSound() {
    console.log(`${this.name} makes a sound.`);
  }
}

// Dog extends Animal
class Dog extends Animal {
  constructor(name, breed) {
    super(name);  // Calls the parent class constructor
    this.breed = breed;
  }

  makeSound() {
    console.log(`${this.name} barks.`);
  }
}

const myDog = new Dog("Buddy", "Golden Retriever");
myDog.makeSound();  // Output: Buddy barks.

In this example:

  • Animal is a base class with a makeSound method.
  • Dog is a subclass of Animal that overrides makeSound to provide a specific behavior for dogs.
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