hgolden
commented
5 years ago Thank you for pointing out the error. Since this is a wiki, you can make the correction yourself. If you don't have an account yet, please request one, so you can make changes.
Note: The error in section 2 of the wiki page is that it defines (<$>), when it should define (<$). You can see this by looking at the definition of Data.Functor (see https://hackage.haskell.org/package/base-4.7.0.2/docs/src/GHC-Base.html#Functor). A previous edit to section 2 of the wiki page incorrectly replaced (<$) with (<$>). So the proper correction in section 2 is to revert (<$>) back to (<$).
On Mon, Feb 18, 2019 at 1:45 AM Arkadiusz Bicz notifications@github.com wrote:
Functor (<$>) has wrong signature on page https://wiki.haskell.org/Functor .
Is in 2 Syntax section :
(<$>) :: a -> f b -> f a
Should be:
(<$>) :: (a -> b) -> f a -> f b
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Functor (<$>) has wrong signature on page https://wiki.haskell.org/Functor.
Is in 2 Syntax section :
(<$>) :: a -> f b -> f a
Should be:
(<$>) :: (a -> b) -> f a -> f b