You might want to play with https://jsdate.wtf/
One can't fathom how weird JS Date can be.
Guessed 2 of the first 3 questions.
Got to question 4 and gave up:
new Date("not a date") 1) Invalid Date 2) undefined 3) Throws an error 4) null
alt Hacker News
Guessed 2 of the first 3 questions.
Got to question 4 and gave up:
There's literally no way of guessing this crap. It's all random.