What are the best practices for using interfaces in TypeScript?

What are the best practices for using interfaces in TypeScript?

When using interfaces in TypeScript, it's important to define clear and concise interfaces, use them for type checking, and extend them when necessary.

Can you give me an example of a simple interface?

Sure! Here's a simple interface for a user:

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

How do I extend an interface?

You can extend an interface using the extends keyword. For example:

interface Admin extends User {
  role: string;
}

What about using interfaces with classes?

You can implement an interface in a class using the implements keyword. This ensures the class adheres to the interface structure.