My script doesn't complete within 30-60 seconds, while the same input and script runs in less than a second with
node
on the command line.
This isn't too surprising, because I’m using Advent of Code to practice map, filter and reduce, and my day 2 solution isn't trying to be time or space efficient (although it’s not _that_ bad).
It would be nice to get an error if it isn't going to complete in a reasonable amount of time.