What are classes in TypeScript and how do I use them?

What are classes in TypeScript and how do I use them?

Classes in TypeScript are blueprints for creating objects. They encapsulate data and behavior.

Can you show me a simple example of a class?

Sure! Here's a basic example:

class Person {
    name: string;
    age: number;

    constructor(name: string, age: number) {
        this.name = name;
        this.age = age;
    }

    greet() {
        return `Hello, my name is ${this.name} and I am ${this.age} years old.`;
    }
}

This defines a Person class with a constructor and a method.

What is the purpose of the constructor?

The constructor is a special method that initializes new objects. It sets up the initial state of the object.

Can I inherit from a class in TypeScript?

Yes, TypeScript supports inheritance. You can create a subclass that extends a parent class.