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You can reach the person managing the list at beginners-ow...@haskell.org When replying, please edit your Subject line so it is more specific than "Re: Contents of Beginners digest..." Today's Topics: 1. Maybe a -> Maybe b (PICCA Frederic-Emmanuel) ---------------------------------------------------------------------- Message: 1 Date: Fri, 25 Aug 2017 08:05:34 +0000 From: PICCA Frederic-Emmanuel <frederic-emmanuel.pi...@synchrotron-soleil.fr> To: "beginners@haskell.org" <beginners@haskell.org> Subject: [Haskell-beginners] Maybe a -> Maybe b Message-ID: <a2a20ec3b8560d408356cac2fc148e53bb41b...@sun-dag3.synchrotron-soleil.fr> Content-Type: text/plain; charset="us-ascii" Hello, I have this data Proxy = Proxy String And I want to write a function f :: Maybe Proxy -> Maybe String f ma = case ma of (Just (Proxy a)) -> Just a Nothing -> Nothing I was wondering if there is no simpler way to do this ? thanks Frederic ------------------------------ Subject: Digest Footer _______________________________________________ Beginners mailing list Beginners@haskell.org http://mail.haskell.org/cgi-bin/mailman/listinfo/beginners ------------------------------ End of Beginners Digest, Vol 110, Issue 20 ******************************************