JavaScript Classes

// Parent class
class Media {
  constructor(info) {
    this.publishDate = info.publishDate;
    this.name = info.name;
  }
}
// Child class
class Song extends Media {
  constructor(songData) {
    super(songData);
    this.artist = songData.artist;
  }
}
const mySong = new Song({ 
  artist: 'Queen', 
  name: 'Bohemian Rhapsody', 
  publishDate: 1975
});

class Song {
  play() {
    console.log('Playing!');
  }

  stop() {
    console.log('Stopping!');
  }
}

class Song {
  constructor(title, artist) {
    this.title = title;
    this.artist = artist;
  }
}
const mySong = new Song('Bohemian Rhapsody', 'Queen');
console.log(mySong.title);

class Song {
  constructor() {
    this.title;
    this.author;
  }

  play() {
    console.log('Song playing!');
  }
}
const mySong = new Song();
mySong.play();

class Dog {
  constructor(name) {
    this.\_name = name;  
  }

  introduce() { 
    console.log('This is ' + this.\_name + ' !');  
  }

  // A static method
  static bark() {
    console.log('Woof!');  
  }
}
const myDog = new Dog('Buster');
myDog.introduce();
// Calling the static method
Dog.bark();