How do I use classes in JavaScript?

How do I use classes in JavaScript?

In JavaScript, classes are a way to create objects and handle inheritance. You can define a class using the class keyword.

Can you show me an example of a class?

Sure! Here's a simple example:

class Animal {
    constructor(name) {
        this.name = name;
    }
    speak() {
        console.log(`${this.name} makes a noise.`);
    }
}

const dog = new Animal('Dog');
dog.speak(); // Dog makes a noise.

What about inheritance in classes?

Inheritance allows one class to inherit properties and methods from another. You can use the extends keyword. For example:

class Dog extends Animal {
    speak() {
        console.log(`${this.name} barks.`);
    }
}

const dog = new Dog('Rex');
dog.speak(); // Rex barks.

Are there any best practices for using classes?

Yes! Some best practices include keeping your classes focused on a single responsibility, using meaningful names, and avoiding deep inheritance hierarchies.