[Haskell-beginners] type signature error in a where clause

[Chaddaï Fouché]

On Sat, Nov 24, 2012 at 4:32 PM, Mark Wallace <lotabout at gmail.com> wrote:
>
> Somehow it might seem a bit easier to me to grasp the function of a function
> with the help of type signature.
> I'll try just omitting the signatures, it's easier and more handy isn't it?
>

As said, type signature are sometimes very useful to catch a mistake
earlier (if your code _can_ be typed, but don't do what you want it
to) and they're also a bit of automatically checked documentation
(always invaluable). A reasonable compromise is to only put type
signatures on the top-level, that's usually sufficient.

--
Jedaï