Treasure.map(): Functional Programming in JVM-based languages

on YouTube ↗52m

" summary

Walks through concrete FP tools and patterns on the JVM with examples in Kotlin, Java, Scala, Clojure and Groovy, demonstrating Stream API use, flatMap chaining and why list/option/either behave like monads; shows how checked exceptions force ugly Java stream workarounds and how Kotlin + Arrow or Java + Vavr restore composable error handling; compares immutability strategies, fold/map/flatten usage, and cites a production Kotlin fraud-detection project that used Arrow and performed acceptably.

AI-written summary · about

" chapters (8)

1. 0:00Start
2. 12:18What is functional programming?
3. 12:51Pure functions
4. 16:32True immutability vs reference immutability?
5. 26:56Monad comprehensions
6. 35:26How to handle problems: Scala, Either
7. 37:56How to handle problems: Clojure
8. 39:11Conclusions

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