Does Haskell have a splat operator like Python and Ruby?

Question

In Python and Ruby (and others as well, I\'m sure). you can prefix an enumerable with * (\"splat\") to use it as an argument list. For instance, in Python:

Answer 1

The uncurry function turns a function on two arguments into a function on a tuple. Lists would not work in general because of their requirement for homogeneity.

Answer 2

Yes, you can apply functions to tuples, using the tuple package. Check out, in particular, the uncurryN function, which handles up to 32-tuples:

Prelude Data.Tuple.Curry> (+) `uncurryN` (1, 2)
3

Answer 3

No, Haskell's type system doesn't like that. Check this similar question for more details:

How do I define Lisp’s apply in Haskell?

BTW, the splat operator you talk about is also known as the apply function, commonly found on dynamical functional languages (like LISP and Javascript).