When should I use inheritance in TypeScript?

Can you explain when I should use inheritance in TypeScript?

Inheritance in TypeScript is useful when you want to create a new class that is based on an existing class, allowing for code reuse and a hierarchical relationship.

What are the benefits of using inheritance over composition?

Inheritance allows for a clear hierarchical structure and can simplify code by reusing methods and properties. However, composition can offer more flexibility and reduce tight coupling.

Can you give me an example of inheritance in TypeScript?

Sure! Here's a simple example:

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

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

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