What are TypeScript interfaces and how do I use them?

What are TypeScript interfaces and how do I use them?

TypeScript interfaces are a way to define the structure of an object. They allow you to specify the properties and their types that an object should have.

Can you give me an example of how to define an interface?

Sure! Here's a simple example:

interface Person {
    name: string;
    age: number;
}

This defines a Person interface with name and age properties.

How do I implement this interface in a class?

You can implement an interface in a class using the implements keyword. For example:

class Employee implements Person {
    name: string;
    age: number;
    position: string;
}

What happens if I don't implement all properties of the interface?

If you don't implement all properties of the interface, TypeScript will throw a compilation error, ensuring that your class adheres to the defined structure.