How do I use super in JavaScript?

Can you explain how to use 'super' in JavaScript?

Sure! The 'super' keyword is used in JavaScript classes to call functions on an object's parent class.

When should I use 'super'?

You should use 'super' when you want to access or call methods from a parent class within a child class.

Can you give me an example?

Of course! Here's a simple example:

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

class Dog extends Animal {
    speak() {
        return super.speak() + ' Bark!';
    }
}

const dog = new Dog('Rex');
console.log(dog.speak()); // Rex makes a noise. Bark!

What if I want to call the parent constructor?

You can use 'super()' in the child class constructor to call the parent constructor. For example:

class Dog extends Animal {
    constructor(name) {
        super(name); // Calls the parent constructor
    }
}