I got interviewed for a FAKE Scala job...

Jakub Kozłowski participates in a mock technical interview answering advanced questions about Scala and functional programming.

In this collab with @marcinkrykowski, I'm answering his questions about Scala and functional programming. If you want to see how poorly or how well it went, enjoy the watch ;) Thanks for inviting me to this collab Marcin! Part 2 on Marcin's channel: youtube.com/watch?v=gbIEVCi-mMg If you enjoyed this video, please like and subscribe, and hit the bell icon so you don't miss another one ;) I'm on Twitter: twitter.com/kubukoz on Mastodon: mstdn.party/@kubukoz on GitHub: github.com/kubukoz sometimes stream on Twitch: twitch.tv/kubukoz And you can buy me a coffee if you want: ko-fi.com/kubukoz Chapters: 00:00:00 - Intro 00:00:41 - Interview Introduction 00:01:25 - 1. What's an extractor in Scala? 00:02:35 - 2. Compare recursion and tail recursion 00:06:15 - 3. What are traits? What are mixins? 00:08:24 - 4. What's a Kigher Kinded Type? 00:09:32 - 5. Variance 00:12:16 - 6. Methods vs functions 00:15:10 - 7. What's the performance of getting the head on a List 00:15:46 - 8. What's the use of function currying? 00:17:15 - 9. What's the scope provided for variables in Scala? 00:17:47 - 10. How is Scala code compiled? 00:19:18 - 11. Effect systems: compare IO to Future 00:24:23 - 12. What's referential transparency? 00:26:14 - 13. What's a typeclass? 00:29:02 - 14. What's the difference between a monad and an applicative functor? 00:32:53 - 15. Explain Tagless Final to a newcomer 00:36:09 - 16. What's your favorite Scala 3 feature 00:37:21 - 17. What's your least favorite feature?