What are interfaces in TypeScript?

What are interfaces in TypeScript?

Interfaces in TypeScript are used to define the structure of an object. They can specify properties and methods.

Can you give me an example of an interface?

Sure! Here's a simple example:

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

This defines a Person interface with a name and age.

How do I implement an 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;
    constructor(name: string, age: number) {
        this.name = name;
        this.age = age;
    }
}

What happens if a class doesn't implement all properties of an interface?

If a class doesn't implement all properties of an interface, TypeScript will throw a compilation error, ensuring type safety.