[Haskell-beginners] IO action on a list of [IO a]

[Christopher Howard]

On 10/06/2012 06:16 AM, Manfred Lotz wrote:
> Hi all,
> I want to do an IO action on a list of [IO a] like this:
> 
> myfor :: (a -> IO () ) -> [IO a] -> IO ()
> myfor _ [] = return ()
> myfor f (x:xs) = do 
>   x' <- x
>   f x'
>   myfor f xs
>     
> 
> 
> Is there a library function doing just this?
> 
> 
> 

For the curious newbies among us: Why would you want to perform an IO
action on a list of IO actions?

-- 
frigidcode.com
indicium.us

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