On Mon, Nov 15, 2010 at 10:15 PM, Mitar
True. Approach with "operational" is really beautiful. And it is really great when you want things done. But for me, Haskell novice who wants to learn more, it hides too much. So it is probably something I would use in my code, but on the other hand I would like an exercise of doing things by hand. So first 100 monads by hand and then such libraries are useful, but also you exactly understand what are they doing - what are they automating, which process you have been doing by hand before.
That's true, doing it yourself manually helps to see that there's no magic under the hood =). After implementing the monad, I would suggest trying to prove that the monad laws hold [1]. Sometimes you think you have a monad but you don't [2]. [1] http://www.haskell.org/haskellwiki/Monad_Laws [2] http://blog.sigfpe.com/2006/11/why-isnt-listt-monad.html Cheers! -- Felipe.