@dibblego Awyea Hole driven development for the win mover (Z _ _ []) = Nothing and mover (Z le x r) = Just (Z (le ++ [x]) (head r) (tail r))
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@dibblego Doh. OK. Back to the drawing board then.
@clinton_freeman The list [1,2,3,4,5,6] with focus at 4 has zipper Z [3,2,1] 4 [4,5,6]
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@dibblego I see that is a bit different to the test case we were working on. -
@clinton_freeman maybe I gave you the wrong test in a rush sorry! - Show replies
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@dibblego@clinton_freeman cool, I never realised that (just checked with Scalaz)Thanks. Twitter will use this to make your timeline better. UndoUndo
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