Your comments

Hi!

Thanks for the bug report, I have fixed both the code and the diagram. The service should be of the ThirdPartyYouTubeLib interface type.

Hi!

Thanks for the bug report, I have fixed both the code and the diagram. The service should be of the ThirdPartyYouTubeLib interface type.

Большое спасибо, проблему исправил.

Поправил, спасибо большое!

Hi!

I'm really sorry for the late reply. I'm not very familiar with Dart, but it's very likely that you'll be able to follow the course just fine. It doesn't require any specific knowledge of Java, C# or PHP. The OOP principles and refactoring techniques covered in the course should be applicable to any modern OOP language.

UML

Здравствуйте!

Понимаю вашу проблему. Краткая инструкция к UML является частью полной книги "Погружение в паттерны проектирования". Если вы не хотите покупать книгу, то базовую информацию об UML можно почерпнуть здесь: https://ru.wikipedia.org/wiki/%D0%94%D0%B8%D0%B0%D0%B3%D1%80%D0%B0%D0%BC%D0%BC%D0%B0_%D0%BA%D0%BB%D0%B0%D1%81%D1%81%D0%BE%D0%B2

固定,谢谢!