this is a funny trick, and it looks saner than the more general <$> <*> combinators. i see many situations where i could use that to lift my own combinators, or to replace the backticks (``) to lift the infix function.
thx - marc Gesendet: Freitag, 27. September 2013 um 21:51 Uhr Von: "Thiago Negri" <evoh...@gmail.com> An: Haskell-Cafe <haskell-cafe@haskell.org> Betreff: [Haskell-cafe] Proposal: new function for lifting Everybody is claiming that using lift is a bad thing. So, I come to remedy this problem. Stop lifting, start using shinny operators like this one: (^$) :: Monad m => m a -> (a -> b -> c) -> m b -> m c (^$) = flip liftM2 Then you can do wonderful stuff and you will never read the four-letter word in your code again: \> Just 42 ^$(+)$ Nothing Nothing \> Just 10 ^$(+)$ Just 20 Just 30 \> let add = (+) \> Just 30 ^$ add $ Just 12 Just 42 _______________________________________________ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe