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Some of my iterations are delightfully recursive
(lemmy.world)
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This is a place where you can post jokes, memes, humor, etc. related to programming!
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Compiler optimizations like function inlining are your friend.
Especially in functional languages, there are a lot of tricks a compiler can use to output more efficient code due to not needing to worry about possible side effects.
Also, in a lot of cases the performance difference does not matter.