Free skill test

JavaScript test

Practical JavaScript judgment — type coercion, this binding, closures, async behaviour, and the language's everyday quirks.

20 questions · 25 min

What JavaScript covers

JavaScript is the primary language of interactive web applications, used both in the browser and, via Node.js, on the server. Assessment items include realistic debugging and implementation tasks rather than syntax trivia, since reading and fixing code is closer to the actual job than reciting language features.

Test format

  • 20 questions
  • Time limit: 25 minutes
  • Pass mark: 70%
  • Copying, pasting and leaving the page are recorded during the test
  • You can take it again 24 hours after your last try

What you get

  • A pass adds JavaScript to your profile as tested evidence
  • Your CV can link to the result with a QR code
  • Employers see the score and the date, and can check the result themselves
  • You choose whether your result is public

More ways to show JavaScript

Common questions

Is the JavaScript test free?
Yes. Create a free account and take the test. Taking it and sharing the result cost nothing.
Can I take the JavaScript test again?
Yes, 24 hours after your last try. Use the time to practise the parts you found hard.
How do employers see my JavaScript result?
Your profile and CV show the score and the date. Employers can open the link to check that the result is real.