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Author here: the concept of `Applicative`s is unique to Haskell and has no parallel in other programming languages. This makes the post difficult to write to a broad audience. Instead, I just tried to show the neat things you could do with `Applicative`s to try to entice people to learn more about them.



I respectfully suggest that Applicative is not what makes this article hard to understand. I agree with thinkpad20 here: https://news.ycombinator.com/item?id=7894258


I don't think it's unique to Haskell. The Scalaz library for Scala also provides Applicative:

https://github.com/scalaz/scalaz/blob/scalaz-seven/core/src/...

Do they differ in some drastic way? (Note: I'm not super familiar with the Haskell version.)


Oh, I wasn't aware Scalaz had applicative. Then I stand corrected.




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