[typescript]interface extends

Thu Mar 27

typescript

Author：Noritaka

interface Nameable {
  name: string;
}

interface Human extends Nameable {
  age: number;
  greeting(message: string): void;
}

class Developer implements Human {
  constructor(public name: string, public age: number, public experience: number) { }
  greeting(message: string) { console.log(message); }
}

const tmpDeveloper = {
  name: 'Quill!',
  age: 38,
  experience: 3,
  greeting(message: string) {
    console.log(message);
  }
}
const user: Human = tmpDeveloper;
let developer = new Developer('Quill', 38, 3);
developer.name = 'hello';