Before grokking this article my initial thought was "everyone today seems to use hash tables or dictionaries". Dicts are everywhere in Python and Objects are the hash table used within JavaScript.

I read the whole Algorithm Design Manual[1] and it can be a bit dry so I'm actually very excited to read Grokking Algorithms to see if it will indeed be helpful for professional developers to ace their ds/algo exams.

[1] https://www.adamconrad.dev/tag/algorithms/