Things you don't already know? For any topic you already know the basics of but want to explore some particular thing, the first answer will be vague and if you

Things you don't already know? For any topic you already know the basics of but want to explore some particular thing, the first answer will be vague and if you ask followup questions will start making stuff up, IME. For programming the popularity of a language matters a lot - Javascript is probably one of the better ones? I tried asking it completely basic questions about Racket for last year's Advent of Code and it would immediately start making up functions.