@dibblego Doing a follow-up comonads talk on Wednesday concentrating on the "why care". Examples zipper, lens/store, FRP, codo notation.
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@dibblego Any other ideas?
@markhibberd List/Option semi-comonad. "Have you ever wanted to map on a list but with context of each element?"
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@dibblego@markhibberd I've heard a good one is tree attribution. Haven't used it myself, yet. -
@puffnfresh@dibblego Attribute grammars, or something slightly different? - Show replies
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@dibblego Got a Haskell example for me? -
@davetchepak extend _ [] = []; extend f x@(_:t) = x : extend f t - Show replies
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