My use case was Advent of Code 2015 where I have a list of cities to create a route through and I wanted my list of cities to be a hashset (to avoid duplicates) and then permutate all the possible options to calculate distance.
>From your response, I understand by definition the hashset can't be ordered so >isn't a good fit for that purpose, whereas the sequence.sorted.deduplicate >worked perfect. I was just checking to see if hashset could have been used in >retrospect. Thanks!
