What is polymorphism in JavaScript OOP?

What is polymorphism in JavaScript OOP?

Polymorphism in JavaScript OOP allows objects to be treated as instances of their parent class, enabling method overriding.

Can you give me an example of polymorphism in JavaScript?

Sure! Here's a simple example:

class Animal {
    speak() {
        console.log('Animal speaks');
    }
}

class Dog extends Animal {
    speak() {
        console.log('Dog barks');
    }
}

class Cat extends Animal {
    speak() {
        console.log('Cat meows');
    }
}

const animals = [new Dog(), new Cat()];
animals.forEach(animal => animal.speak()); // Outputs: Dog barks, Cat meows

What are the benefits of using polymorphism?

Polymorphism promotes code reusability and flexibility, allowing for easier maintenance and the ability to extend functionality.

Are there any drawbacks to using polymorphism?

Yes, it can lead to complexity in understanding the code, especially if overused or not documented properly.