[hnra]

Using map, fold etc. is not the hard part of functional programming. The hard part is managing effects (via monads, monad transformers, or effects). Trying to convert a procedural inner mutating algorithm to say Haskell is challenging.

[jcadam]

Never used monads with Clojure (the only Lisp I've done "serious" work in). Haskell introduced them to me, but I've never done anything large with Haskell (no jobs!). Scala, however, has monads via the cats or (more recently) the ZIO library and they work just fine there.

The main problem with Monads is you're almost always the only programmer on a team who even knows what a Monad is.

[mrkeen]

> The hard part is managing effects

You can say that again!

Right now I'm working in C#, so I wished my C# managed effects, but it doesn't. It's all left to the programmer.

[codr7]

I don't know, stacking monads is a comparable level of pain to me.