I mean the second case is generally discoverable for a programmer because there will documentation of a language or API. I believe people are generally aware of discoverability of documentation in 2021.
> I believe people are generally aware of discoverability of documentation in 2021.
as someone who teaches programming in university, that's definitely not true, less than 1 in 20 students has the reflex of looking for any kind of documentation (even after showing it to them)
well I'm discussing what is easiest for working programmers, although it's true I do hear about there being a bunch of really bad ones out there so maybe I am just assuming too much.