javascript prototype and inheritance - Node.js Object

Node.js examples for Object:Prototype

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Description

javascript prototype and inheritance

Demo Code


var Track = function (params) {
  this.name = params.name;
  this.url = params.url;//from w  ww .j  a  v  a 2s  . c o  m

  // this.playTrack = function () {
  //   console.log('We started playing ', this.name);
  // };
};

Track.prototype.playTrack = function () {
  console.log('We started playing ', this.name);
};

var YoutubeTrack = function (params) {
  Track.apply(this, arguments);
  this.image = params.image;
};

YoutubeTrack.prototype = Object.create(Track.prototype);
YoutubeTrack.prototype.constructor = YoutubeTrack;

YoutubeTrack.prototype.playTrack = function () {
  console.log('Hello youtube', this.name);
};


var track01 = new Track({
  name: 'track01',
  url: 'track01.mp3',
});

var track02 = new Track({
  name: 'track02',
  url: 'track02.mp3'
});

console.log(track01);
console.log(track02);

track01.playTrack();
track02.playTrack();

var youtubeTrack01 = new YoutubeTrack({
  name: 'youtubeTrack01',
  url: 'youtubeTrack01.mp3',
  image: 'track01.jpg'
});

var youtubeTrack02 = new YoutubeTrack({
  name: 'youtubeTrack02',
  url: 'youtubeTrack02.mp3',
  image: 'track02.jpg'
});

console.log(youtubeTrack01);
console.log(youtubeTrack02);
youtubeTrack01.playTrack();
youtubeTrack02.playTrack();

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