I hear they are good, make it easier to maintain code-bases. Most often I reach for python to get the job done. Does anyone have experiences with functional languages for larger projects?
In particular I am interested to learn more on how to handle databases, and writing to them and what patterns they come up with. Is a database handle you can write to not … basically mutable state, the arch-nemesis of functional languages?
Are functional languages only useful with an imperative shell?
One answer: scala
Scala is used in a lot of places, it’s a very good mix of OOP and FP, not fully functional, but you can simply not use the OOP parts.
For databases, accesses to the world state, etc, there are monad transformers