👍 but maybe we can come up with a better name. These things are usually called somethingWithKey. Perhaps toArrayWithKey?

toArrayWithKey would be consistent with mapWithKey and filterWithKey.
Personally, I think I would prefer toArrayWith, mapWith and filterWith 🚲 😇.

👍 Looks good, thanks!

@hdgarrood Do you want to merge this with your other PR and make a release, please?

Sure :)