"Tim Baumgartner"
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?
Importing Control.Applicative, you can do this: getLine <* something >>= putStrLn The (<*) function has the following signature: (<*) :: (Applicative f) => f a -> f b -> f a It sequences the two computations in order, but returns the result of the first. This is mostly useful in applicative parsers, where you often need to skip unimportant stuff like spacing and use an earlier result. Greets, Ertugrul -- nightmare = unsafePerformIO (getWrongWife >>= sex) http://ertes.de/