Question

I had some experience in Haskell and currently learning Scala. Am wondering whether there is something equivalent to Monads in Scala??

Answer 1

You probably want to check out scalaz; it’s been strongly influenced by Haskell. Indeed, it has often been asked of one of the prime contributors why they aren’t just using Haskell, as they seem to like it so much!

Scalaz makes heavy use of implicits in order to decorate structures with their monads. For example:

val fibs = (0, 1).iterate[Stream]( i => i._2 -> (i._2 + i._1) ).map(_._1)
println( fibs.take(10) )