Puzzlers are tricky programming challenges with often surprising answers. They show how bad practices can lead to problems.
Order of nullable operators
Extensions are resolved statically
a) Doesn't compile
b) Runtime error
On this workshop, I not only systematized knowledge about Kotlin syntax but also, thanks to Marcin, I changed my way of thinking about problem-solving to functional way - I got a new tool that I can use at work on a daily basis. It seems to me that whole training is focused on immediate use of new knowledge in daily work. Big +
Very good workshop. Perfect for developers that want to move easily from Java to Kotlin. During the workshop, we did plenty of exercises that enabled checking new knowledge in practice.