Isaac Van Doren (Feb 01 2025 at 05:18): Isaac Van Doren (Feb 01 2025 at 05:18):Is there a reason we don't have a Set.size? I'm happy to create an issue for it if that is the name we want.
Brendan Hansknecht (Feb 01 2025 at 05:34):Set.len it exists https://www.roc-lang.org/builtins/Set#len
Isaac Van Doren (Feb 01 2025 at 05:49):Wow. How did I miss that. I literally looked at the docs :face_with_peeking_eye:. Alright, thanks :sweat_smile:
Notification Bot (Feb 01 2025 at 05:49):Isaac Van Doren has marked this topic as resolved.
Brendan Hansknecht (Feb 01 2025 at 05:52):Might be smart to put the word size in the doc comments so searching for length or size finds the correct item.
Isaac Van Doren (Feb 01 2025 at 06:05):I wonder if it would make sense to rename it to Set.size. Length is not a property that I usually think of sets having.
Isaac Van Doren (Feb 01 2025 at 06:06):Same for dictionaries
Brendan Hansknecht (Feb 01 2025 at 06:07):I really dislike it being different from lists. So I think we should change all or none
Brendan Hansknecht (Feb 01 2025 at 06:08):Also, weirdly, I think of dictionaries having lengths, but less so sets. Maybe just cause I almost never use sets and have interacted with them more though math, but I use maps and dictionaries way more often so am more used to length.
Isaac Van Doren (Feb 01 2025 at 06:09):I would be happy with List.size
Isaac Van Doren (Feb 01 2025 at 06:10):Also, weirdly, I think of dictionaries having lengths, but less so sets.
I agree. Maybe it's because the physical analogy of a dictionary is definitely ordered. Whereas sets (as presented in math) are very much definitely not ordered by themselves.
Richard Feldman (Feb 01 2025 at 12:51):I agree that the name should be consistent between collections, but I think making a separate topic to discuss size seems reasonable. We've never talked about it before!
Last updated: Jun 16 2026 at 16:19 UTC