JavaScript Design Patterns - Structural - Decorator

class Notification {
  constructor(kind) {
    this.kind = kind || "Generic";
  }

  getInfo() {
    return `I'm a ${this.kind} Notification`;
  }
}

class FacebookNotification extends Notification {
  constructor() {
    super("Facebook");
  }

  setNotification(msg) {
    this.message = msg;
  }

  getInfo() {
    return `${super.getInfo()} with the message: ${this.message}`;
  }
}

class SMSNotification extends Notification {
  constructor() {
    super("SMS");
  }

  getInfo() {
    return super.getInfo();
  }
}

export { FacebookNotification, SMSNotification };