re: Sets in JavaScript VIEW POST

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re: There is a lot of value when using a Set over an Array. I learned yesterday that Set#has(item) performs an O(log n) algorithm to determine if the ...
 

AFAIK, Set.has implementation in V8 is really fast - it has O(1) time complexity.

 

It's entirely possible I learned wrong! I took the statement at face value, knowing I couldn't verify it myself. If that's the case, then I'm really happy I use Set all the time now.

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