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> So is it an interface or a function? Is it one and the same in Haskell? I am utterly confused. Functor is an interface. It has one member: a function called
by tome 2y ago
> So is it an interface or a function? Is it one and the same in Haskell? I am utterly confused.
Functor is an interface. It has one member: a function called fmap. To specify how a type meets the Functor interface you have to define the function fmap for that type.
- necovek 2y agoThanks: that actually does a better job explaining it in fewer words.