given a list [a, b, c, d], what is the idiomatic w...

# stdlib

[rrva]

given a list [a, b, c, d], what is the idiomatic way to split it into two parts at a given index? Using subList feels clunky. I would like to write list.splitAt(2) to get [[a, b], [c, d]

[diesieben07]

You could argue that this is "more idiomatic", but subList is definitely more efficient:
https://pl.kotl.in/9Dp69Ywze

[diesieben07]

And I don't think subList is very "clunky": https://pl.kotl.in/lKg9jC091

[diesieben07]

Not also that subList is a view of the underlying list (i.e. it will reflect changes in the underlying list), whereas take and drop are copying

[rrva]

I made an off-by-one bug with subList which I just now corrected