Most likely, this is a caching issue. Please hit Ctrl + F5 and let me know whether the problem persists.

Здравствуйте, Евгений!

Да, вы всё верно поняли.

Hi David!

Can you please attach a screenshot?

Thanks, I'm really glad that you like my work.

As for your question, I really like the evolutionary approach for building apps: make it work somehow in v1.0, let it be ugly, slow and imperfect, just make it work. The problem with making the code nice in 1.0 is that you don't know a lot about how it all will look in the end, what caveats will you discover, etc. Once you're done with 1.0, refactor the crap out of it, make it fast, make it pretty in 2.0.

Apart from my work, I'd recommend you reading this great book on refactoring to patterns: https://www.amazon.com/Refactoring-Patterns-Joshua-Kerievsky/dp/0321213351

Thanks for the idea! I've been keeping Kotlin on my radar for a while. I might indeed add Kotlin examples in the near future.

Fixed, thanks!

Thanks, Ricardo! You might be totally right, I'll check it with the guy who helped me with Ruby examples.

Thanks, Nico!

Hi Piotr!

The fastest workaround is to switch to even darker mode on iBooks.

Thanks!