Hi I'v currently working on a school-project where I have to describe the Haskell programming language. I've been looking through Monads and especially the IO monad, the Maybe monad and the list monad My question is why are monads necessary in the language ? Is it not possible to construct the features provided by Monads using basic functional constructs ? What do I gain using Monads ? Thank you very much. Regards Skagen ______________________________________________________ Går mail for langsomt for dig? Så prøv Yahoo! Messenger - her kan du i løbet af få sekunder udveksle beskeder med de venner, der er online. Messenger finder du på adressen: http://dk.messenger.yahoo.com