Question

In Haskell, I can check a function’s type in ghci by using :t:

Prelude> :t odd
odd :: Integral a => a -> Bool

This says that the function odd takes an Integral type and returns a Bool. Is there something similar for Scala?

Answer 1

It’s actually the exact same in the Scala REPL:

scala> def odd(x : Int) = x % 2 != 0
odd: (x: Int)Boolean

scala> :t odd
(x: Int)Boolean