Find out if you're ready for your JavaScript job interview or certification. 25 questions, instant score, no sign-up required.
This free JavaScript readiness test gives you a data-driven answer to the question most developers dread: "Am I actually ready?" You'll answer 25 exam-style questions that mirror what employers test in technical screening rounds and what JavaScript certification bodies cover. The test spans the full spectrum — variables and scope, closures, prototypes, async/await, ES6+ features, DOM manipulation, and error handling. When you finish, you get an instant readiness score from 0 to 100, a pass likelihood estimate, a topic-by-topic accuracy breakdown, and a list of your exact weak areas. No sign-up, no email required.
Choose Easy, Medium, or Full test depending on where you are in your learning.
One question at a time. Click an answer and get instant feedback with a full explanation.
See your readiness score (0–100), pass likelihood, and a topic-by-topic breakdown.
The full test (Hard mode) has 25 questions across 7 topics. Easy mode focuses on fundamentals; Medium mode adds intermediate concepts.
Your score is a number from 0 to 100. 85–100 = Exam Ready, 70–84 = Almost Ready, 50–69 = At Risk, 0–49 = Not Ready. Each band comes with a pass likelihood percentage.
Yes. Questions reflect what JavaScript engineers are commonly tested on in technical screening rounds — closures, async patterns, ES6+ syntax, and DOM concepts all appear.
Completely free, no account needed. Just pick a difficulty and start.
You get an instant readiness score, your pass likelihood, a topic-by-topic accuracy breakdown, and a list of your weak areas so you know exactly what to study next.
Free. No sign-up. Results in under 20 minutes.