I don't think this is a typo. It's skipping the zero index value when destructuring because the first value matches the whole phrase "Cupertino 95014" instead of just the city or just the zip.

If this feels like a typo then you're right! It's not readable enough. Maybe we should use an _ character to denote it is not used, much like Python and other languages do.

Ah I see. I think an _ would be more readable.

Edit*
I went ahead and added the change const [_, city, zipCode] = address.match(cityZipCodeRegex) .....

Thanks that looks great!