Classes

Documentation

You can create a greeter by instantiating the Greeter object, or create a customized greeter by extending from it.

Code

const myGreeter = new Greeter("hello, world");
myGreeter.greeting = "howdy";
myGreeter.showGreeting();

class SpecialGreeter extends Greeter {
  constructor() {
    super("Very special greetings");
  }
}

Declaration

Use declare class to describe a class or class-like object. Classes can have properties and methods as well as a constructor.

declare class Greeter {
  constructor(greeting: string);

  greeting: string;
  showGreeting(): void;
}

Links:

https://www.typescriptlang.org/docs/handbook/declaration-files/by-example.html#classes

doc_TypeScript

2025-01-10 15:47:30

Comments