@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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Replying to @markhibberd
@markhibberd List/Option semi-comonad. "Have you ever wanted to map on a list but with context of each element?"2 replies 0 retweets 0 likes -
Replying to @davetchepak
@davetchepak extend _ [] = []; extend f x@(_:t) = x : extend f t1 reply 0 retweets 0 likes
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