On Fri, Dec 10, 2021 at 1:48 PM I wrote:
> So this looks pretty buggy, but I wonder if I'm somehow invoking undefined
> behavior by combining semicolons and adverbs while subscripting. The
> online docs cover both features separately, but not in tandem that I can
> see.
>
Actually, immediately
I was writing some code that involved accessing an array-of-arrays. I
wanted to check whether both of a given pair of indices were in bounds, so
I wrote:
return () if @array[$y]:!exists or @array[$y][$x]:!exists or ...
The double index check bugged me a bit, since I wondered if there might
