Consider adding `classify`.

Ignat Insarov kindaro at
Thu Aug 20 17:59:40 UTC 2020


There has been [a question on Stack Overflow][1] asking for a way to group a
list by an equivalence relation. Several answers were proposed over time, and I
too [have offered a variant][2]. [I also wrote a benchmark.][3]

I propose that the function be added to the standard libraries.


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