Re: [Haskell-beginners] point-free + IO Monad

You can drop the parens if you like. f2 a = putStrLn . f1 =<< a -- my preference f2 a = a >>= putStrLn . f1 On 31/03/2013 7:29 PM, "Ovidiu D" wrote:

That's good enough. Thanks!

On Sun, Mar 31, 2013 at 11:08 AM, Franco wrote:

...

Ovidiu D writes:

...

I have the following code:

f1 :: String -> String

f2 :: IO String -> IO () f2 a = do b <- a putStr $ f1 b

How can I write the function f2 in a point-free style?

maybe

f2 = (=<<) (putStrLn . f1)

I still prefer the non point-free but clearer

f2 = a >>= (putStrLn . f1)

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

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