When should I use an interface in TypeScript?

When should I use an interface in TypeScript?

You should use an interface in TypeScript when you want to define the shape of an object, especially for complex types.

Can you give me an example of an interface?

Sure! Here's a simple example:

interface User {
  id: number;
  name: string;
  email: string;
}

What’s the difference between an interface and a type alias?

An interface is specifically for defining object shapes, while a type alias can define any type, including primitives, unions, and more.

Are interfaces extendable?

Yes, interfaces can be extended using the extends keyword, allowing you to create new interfaces based on existing ones.