If you have limited exposure to JavaScript, that’s great. Try to keep it that way. Personally, the article/quiz reminds me what an utter shit field web development really is and that shaving my face with a lawn mower and hot sauce might be the preferable alternative. Also, reading the sibling comments here describing JavaScript as having characteristics like “great defaults” and “reasonable rules in place” make me wonder what fucked up alternate reality they’re all living in where those are true.