John Ky wrote:
Is there a built-in function that already does this?
Usually, when I have a question like this, I try Hoogle first:
http://www.haskell.org/hoogle/?q=%28a+-%3E+b%29+-%3E+Maybe+a+-%3E+Maybe+b
Unfortunatly, the right answer (fmap) is on the second page of results.
(I am really
Hi Alan,
Usually, when I have a question like this, I try Hoogle first:
http://www.haskell.org/hoogle/?q=%28a+-%3E+b%29+-%3E+Maybe+a+-%3E+Maybe+b
Unfortunatly, the right answer (fmap) is on the second page of results.
The reason for this is that Hoogle 3 doesn't understand higher-kinded
type
