[Haskell-beginners] Re: Count how often a menu has been selected

Felipe Lessa felipe.lessa at gmail.com
Sat Jul 25 21:52:24 EDT 2009


On Sat, Jul 25, 2009 at 08:22:33PM +0200, Bernhard Lehnert wrote:
> this works great except for the "print a" part which I replaced by:
>
> b <- readIORef a
> print b

Woops, sorry :).  Tip: most haskellers would prefer either

    readIORef a >>= print

or

    print =<< readIORef a

even if you are already in a 'do' block.

--
Felipe.


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