What are some real-world applications of TypeScript interfaces?

What are some real-world applications of TypeScript interfaces?

TypeScript interfaces are used to define the structure of objects, making code more predictable and easier to manage. For example, in a web application, you can define an interface for user data, ensuring that all user objects have the same properties.

Can you give me an example of how to use an interface in a project?

Sure! Let's say you're building a shopping cart application. You could define an interface like this:

interface Product {
  id: number;
  name: string;
  price: number;
}

This ensures that every product in your application has an id, name, and price.

How do interfaces help with code maintainability?

Interfaces help maintainability by providing a clear contract for what an object should look like. This makes it easier for developers to understand how to interact with different parts of the codebase, reducing errors and improving collaboration.

Are there any limitations to using interfaces?

Yes, one limitation is that interfaces only exist at compile time and do not have any runtime representation. This means they can't be used for type checking in JavaScript directly, but they are very useful during development.