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 -
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Replying to @puffnfresh
@puffnfresh@dibblego Great, now I have another concept I have to go away and read. I'm still not done with ana.1 reply 0 retweets 0 likes -
Replying to @JulianBirch
@JulianBirch@dibblego like you said, just one of many ways to get a "f a -> f b" - easy once you recognise that :)3 replies 0 retweets 0 likes
Replying to @puffnfresh
@puffnfresh @JulianBirch On the same subject, but using Scala syntax.
http://tonymorris.github.io/blog/posts/functors-and-things-using-scala/index.html …
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