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" <ovidiudeac@gmail.com> wrote:
That's good enough. Thanks!


On Sun, Mar 31, 2013 at 11:08 AM, Franco <franco00@gmx.com> wrote:
Ovidiu D <ovidiudeac <at> gmail.com> 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)



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