I am also -1 on adding it to Data.Functor despite having written it for
lens.
On Mon, Feb 17, 2014 at 3:41 AM, Andreas Abel
I am a -1 on both proposals, i.e., on having a special map for the "apply to a fixed argument" case.
On 16.02.2014 21:42, Nikita Volkov wrote:
Also, since the variable input of this combinator seems to be on the functor side I suggest to inverse the arguments order order, i.e.:
mapf :: a -> f (a -> b) -> f b
This way it'll target composition. And since it's a combinator over functions it's a pretty important thing. E.g.: mapf 2 . map (*) $ [1..10]
I'd simply write
map (2 *) [1..10]
Cheers, Andreas
-- Andreas Abel <>< Du bist der geliebte Mensch.
Depeartment of Computer Science and Engineering Chalmers and Gothenburg University, Sweden
andreas.abel@gu.se http://www2.tcs.ifi.lmu.de/~abel/ _______________________________________________ Libraries mailing list Libraries@haskell.org http://www.haskell.org/mailman/listinfo/libraries