Want an "f a -> f b"?
Got a->b? Use <$>
Got f (a->b)? Use <*>
Got a -> f b? Use =<<
#haskell
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Replying to @JulianBirch
@JulianBirch@puffnfresh Got (f a -> b) use (<<=).2 replies 1 retweet 1 like -
Replying to @puffnfresh
@puffnfresh @JulianBirch Should get profunctors to fit.
2:34 PM - 8 Jun 2014
0 replies
0 retweets
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