Is there a sample code for solution?

[leemhoon00]

Hi, I find RefactoringGuru's Problem and Solution scenarios very easy to understand and of high quality.

However, I can't find the sample code for the Problem and Solution sections, so I have to implement the samples like this:

// Decorator Pattern
interface Notifier {
  send(message: string): void;
}

class EmailNotifier implements Notifier {
  constructor(private emails: string[]) {}

  send(message: string): void {
    console.log(`Sending email to ${this.emails}: ${message}`);
  }
}

class SMSDecorator implements Notifier {
  constructor(private notifier: Notifier) {}

  send(message: string): void {
    console.log(`Sending SMS: ${message}`);
    this.notifier.send(message);
  }
}

class FacebookDecorator implements Notifier {
  constructor(private notifier: Notifier) {}

  send(message: string): void {
    console.log(`Sending Facebook message: ${message}`);
    this.notifier.send(message);
  }
}

class SlackDecorator implements Notifier {
  constructor(private notifier: Notifier) {}

  send(message: string): void {
    console.log(`Sending Slack message: ${message}`);
    this.notifier.send(message);
  }
}

const emailNotifier = new EmailNotifier([
  "user1@example.com",
  "user2@example.com",
]);

const combinedNotifier = new SlackDecorator(
  new FacebookDecorator(new SMSDecorator(emailNotifier))
);

combinedNotifier.send("Important message: House is on fire!");

I am implementing all of the Solution Code like this. Can I contribute to this repository?

[neochief]

Hi!

Thanks for the idea! Yes, sure, I can include these examples. Please submit a pull request, and put all of the examples in to a Book directory under each pattern (so that it would be a sibling directory to Conceptual and RealWorld).