Re: [Haskell-beginners] fmap fmap

Michael P Mossey wrote:

How does one write

fmap (fmap (*2)) xs

without parenthesis? (Using . and $ instead.)

I don't really understand . and $ well enough I guess. I tried a bunch of stuff but nothing worked.

-Mike _______________________________________________ Beginners mailing list Beginners@haskell.org http://www.haskell.org/mailman/listinfo/beginners

fmap . fmap $ (*2) or perhaps: (fmap . fmap) (*2) -- Tony Morris http://tmorris.net/