Comments on: The State Monad: a tutorial for the confused? http://coder.bsimmons.name/blog/2009/10/the-state-monad-a-tutorial-for-the-confused/ fragmentary ideas ䷿ intellectual what-nots ䷷ and haskell programming ䷴ Mon, 16 Aug 2010 13:21:24 +0000 http://wordpress.org/?v=2.9.1 hourly 1 By: Mark http://coder.bsimmons.name/blog/2009/10/the-state-monad-a-tutorial-for-the-confused/comment-page-1/#comment-263 Mark Thu, 22 Jul 2010 21:36:05 +0000 http://coder.bsimmons.name/blog/?p=230#comment-263 Great tutorial, thanks! Just one minor correction -- shouldn't the expanded type of the state monad's bind function be: (>>=) :: (s -> (a,s)) -> (a -> s -> (*b*,s)) -> (s -> (b,s)) (asterisks for emphasis) Great tutorial, thanks!

Just one minor correction — shouldn’t the expanded type of the state monad’s bind function be:

(>>=) :: (s -> (a,s)) -> (a -> s -> (*b*,s)) -> (s -> (b,s))

(asterisks for emphasis)

]]> By: jberryman http://coder.bsimmons.name/blog/2009/10/the-state-monad-a-tutorial-for-the-confused/comment-page-1/#comment-260 jberryman Wed, 30 Jun 2010 16:34:37 +0000 http://coder.bsimmons.name/blog/?p=230#comment-260 @Zak: I'm really glad you found it helpful. And thanks for the feedback! @Zak: I’m really glad you found it helpful. And thanks for the feedback!

]]> By: Zak http://coder.bsimmons.name/blog/2009/10/the-state-monad-a-tutorial-for-the-confused/comment-page-1/#comment-259 Zak Wed, 30 Jun 2010 02:23:51 +0000 http://coder.bsimmons.name/blog/?p=230#comment-259 Great tutorial! It all finally clicked for me after reading this. I've only been programming for about a month (Haskell is my first programming language), and this is the only explanation of the state monad that made any sense to me. All the others I've read either went way over my head or were clearly written by someone who didn't understand them that well themselves. Thanks! Great tutorial! It all finally clicked for me after reading this. I’ve only been programming for about a month (Haskell is my first programming language), and this is the only explanation of the state monad that made any sense to me. All the others I’ve read either went way over my head or were clearly written by someone who didn’t understand them that well themselves. Thanks!

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