Hello Jonathan,
Thursday, January 15, 2009, 1:41:23 AM, you wrote:
> reverseDouble =
> unlines
> . intro
> . map show
> . reverse
> . map (read :: String -> Double)
> . takeWhile (/= "end")
> . words
using arrows, this may be reversed:
reverseDouble =
words
>>> takeWhile (/= "end")
...
> I observe also in passing that the cast on read is somewhat inelegant;
> in a real application, the consumer of map read's output would specify
> its type sufficiently that the cast would be un-necessary.
in small scripts explicit read casts are rather common
--
Best regards,
Bulat mailto:bulat.zigans...@gmail.com
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