Lenses, Folds, and Traversals

What people said

mijoharas · 2014-11 · Strong recommendation

I found this talk by edward kmett incredibly helpful[0]. I kept rewatching parts of it bit by bit until I managed to absorb it all (there is a lot of information for a beginner) but I found it hugely helpful and mind-blowingly powerful. [0] [VIDEO]

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dllthomas · 2014-08 · Recommendation

"The best forms of language advocacy probably involve showing the great things you've done with a language and forgetting about comparisons to the competition." Great things the parent has done with the language: [VIDEO]

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jerf · 2013-01 · Recommendation

If you want to work in an environment where a lot of people are thinking like this routinely, instead of a few lone voices in a vast sea of otherwise uninterested people, the Haskell community is doing a lot of work in this area, and able to move much faster since it's so much easier in Haskell than C++ templates (which isn't really a criticism of C++ templates, a lot of their capabilities are accidental rather than intended). This is why the Haskell community talks so much about monoids and applicatives and semigroups and a variety of other interesting structures in that area (and no, I did not forget to say monad, that structure is actually uninteresting here because it is too powerful). I believe the Fortress language is also doing some work here. A sample of the interesting sort of algorithm work that you can do when you think this way: [LINK] Edit: See also the Typeclassopedia: [LINK] And if you're really interested and want to take it hardcore, Edward Kmett's video on his lens library walks through how you can derive it with this sort of logic: [VIDEO]

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