21:24 <arjenr> How do I concatenate lists like I would in ocaml? before :: e1 :: e2 :: after, with before and after being lists of elements of the same time as e1 and e2?

21:24 <arjenr> There seems to be syntax for the after part [e1, e2, ...after], but what about the before part?

21:32 <arjenr> chenglou: yunxing: yt by chance?

22:00 <chenglou> @arjenr hey

22:00 <chenglou> what's before? Another list or an item?

22:03 <arjenr> Another list. I am moving items from the after to the before list.

22:04 <arjenr> chenglou: ^

22:04 <chenglou> even in ocaml that'd be @ rather than :: right?

22:05 <chenglou> btw, general conversion trick in case you didn't see this yet: https://github.com/facebook/reason/wiki/Newcomer-Tips-&-Tricks#ocaml---reason-conversion-tricks

22:06 <chenglou> `item1 :: item2 :: theRest` is `[Item1, item2, ...theRest]` in reason, yes. We don't support multiple spreads

22:06 <arjenr> chenglou: ah right. I got the wrong assumption here :(

22:06 <chenglou> out of perf consideration when people do `[...foo, ...bar]` and don't realize the perf cost

22:06 <chenglou> O(n) in terms of size of foo

22:07 <chenglou> @ is what you want here in both syntaxes

22:07 <chenglou> also, thanks for pinging. Otherwise I leave IRC open and forget about it frequently

22:07 <chenglou> our discord channel is more active if I'm not around here. discord.gg/reasonml