Re: [Haskell-beginners] Ignoring the result of a monadic computation

On Nov 19, 2010, at 7:56, Tim Baumgartner wrote:

Hi,

while learning about monads, I had something like

do line <- getLine something putStrLn line

and I wondered if I could write it in one line, without naming of parameters. I finally came up with

getLine >>= ignore something >>= putStrLn

using ignore :: Monad m => m a -> b -> m b ignore m a = m >> return a

I'm satisfied with this solution but searching hoogle I didn't find a standard function for my ignore. Am I missing something?

I don't know if this is better, but you could also write getLine >>= (something >>) . putStrLn Cheers, Bastian