[specialist]

Sorry. I should have written "regex intrinsics". Meaning native to the language, vs implemented as a library. Just like Perl's syntax for regex.

[mLuby]

So like the /^regex(.*)syntax$/g that we have in vanilla JS?

(I agree with your overall point BTW.)

[specialist]

Yup.

I just checked; the MDN docs refer to them as "regular expression literals".