In Node 22.7 and above you can enable features like enums and parameter properties with the --experimental-transform-types CLI option (not to be confused with the old --experimental-strip-types option).

Excellent update! Thanks!

Don’t use enums. They are problematic for a few reasons, but the ability to run TS code without enums without a build step should be more than enough of a reason to just use a const object instead.

Oh, I agree.