Tired of imperative programmers kicking sand in your face? Send some cut-out lambdas and a postal order for 5 frobs to haskell.org, and we’ll send you a handy-dandy poster of those famous superheroes, the Monad Squad!
State helps functional programmers cross the imperative street!
Identity can blend in anywhere!
Writer never forgets a detail!
Cont can travel through time!
List can do many things at once!
Reader can tell what you’re thinking!
Together, they battle the evil genius unsafePerformIO, who is always trying to destroy the world!