Are you ready for this?
Ten questions, free, marked as you go, written at exactly the level of the JavaScript Certification. Nothing is recorded and no account is needed — it exists so you can decide for yourself rather than take our word for it.
The real paper is 65 questions in one sitting with a 70% pass mark and no partial credit. It is not a certificate of attendance, and roughly a third of it is foundations — the point is the whole language, not the parts you enjoyed.
Question 1 of 10
Values and typesWhat does 0.1 + 0.2 === 0.3 evaluate to, and why?
Pick an answer to see whether it is right. You cannot change it afterwards — that is the point.