Quick skill test · 15 questions · 15 minutes · Free

jQuery Quiz

Tests jQuery fundamentals — selectors and DOM traversal, changing content, classes and styles, handling events with delegation, effects, and making Ajax requests, plus when modern JavaScript can replace jQuery. Pass to earn jQuery SOA-JQUE.

What is the jQuery Quiz?

The jQuery Quiz is a free beginner-level, 15-minute skill test from Science of Apps. It tests jQuery fundamentals — selectors and DOM traversal, changing content, classes and styles, handling events with delegation, effects, and making Ajax requests, plus when modern JavaScript can replace jQuery. Score 70% or more on its 15 questions to earn a verifiable jQuery certificate (SOA-JQUE). Every question is based on published standards and research — including jQuery API documentation (OpenJS Foundation), JavaScript reference (MDN Web Docs), HTML reference (MDN Web Docs) — and each answer is explained with its source.

Built for your job title

Front-end developer, Web developer, WordPress developer, Junior developer and Maintenance developer — and anyone who wants quick, verifiable proof of jQuery skills for a CV or LinkedIn.

  • Front-end developer
  • Web developer
  • WordPress developer
  • Junior developer
  • Maintenance developer

What the quiz covers

Three skill areas with 5 questions each, drawn from a bank of 10 per area, so a retake brings questions you haven't seen.

  1. 01

    Selectors and DOM

    33%
    • Selectors
    • Traversal
    • Content
  2. 02

    Events and Effects

    33%
    • Event handling
    • Delegation
    • Effects
  3. 03

    Ajax and Modern Practice

    33%
    • Ajax
    • Data
    • Modern alternatives

Independent skills test. Science of Apps is not affiliated with, endorsed by or sponsored by the OpenJS Foundation. Product and exam names are trademarks of their owners. Passing earns a Science of Apps certificate, not a certification issued by the OpenJS Foundation.

Based on published standards

The questions are original scenarios, and each one names the public standard, official guide or research it draws on — shown under the question while you answer, and linked in your review. These are the sources behind this quiz:

Try a sample question

In jQuery, $(document).ready() or $(fn) runs code

  1. once the DOM is ready
  2. only after every image loads
  3. before the HTML is parsed
  4. when the user clicks
Show the answer

A. once the DOM is ready — DOM ready. The real quiz has 15 questions like this.

How the quiz works

  1. 15 minutes, 15 questions

    One question per screen, with a progress bar and a countdown. Your progress is saved on this device if you need to pause.

  2. Graded on our server

    Answers reach the page only after you submit, so the certificate can only be earned by passing.

  3. Every answer explained

    Pass or not, you see every question with the right answer, why, and the source behind it. Pass mark 70%, distinction 90%.

  4. Your certificate

    Founder-signed, with a QR code and credential ID. Download PDF or PNG, add to LinkedIn, and it's emailed to you.

What you earn

A Science of Apps certificate for Software Engineering & Web Development: ivory paper with a gold medal
LinkedIn-ready certificate

Pass, then add it to LinkedIn in one click

No typing. The Add to LinkedIn button opens your profile’s Licenses & certifications form already filled in: the certificate name, Science of Apps as the issuer, the issue date, your credential ID and a link recruiters can use to verify it.

  1. 1Take the 15-minute test
  2. 2Score 70% or more
  3. 3Click Add to LinkedIn
Free · no sign-up · also emailed to you as a PDF
How it shows on your LinkedIn profile

See every Software & web dev certification and test →

Frequently asked questions

What is the jQuery Quiz?

The jQuery Quiz is a free beginner-level, 15-minute skill test from Science of Apps. It tests jQuery fundamentals — selectors and DOM traversal, changing content, classes and styles, handling events with delegation, effects, and making Ajax requests, plus when modern JavaScript can replace jQuery. Score 70% or more on its 15 questions to earn a verifiable jQuery certificate (SOA-JQUE). Every question is based on published standards and research — including jQuery API documentation (OpenJS Foundation), JavaScript reference (MDN Web Docs), HTML reference (MDN Web Docs) — and each answer is explained with its source.

How do I take the jQuery Quiz for free?

Read the three skill areas on this page, then take the 15-minute quiz online — no fee, course or sign-up. You see every answer explained when you finish. Score 70% or more and you get a jQuery certificate straight away, on screen, as a PDF and by email, with a credential ID anyone can verify.

Are the jQuery Quiz questions based on real standards?

Yes. The questions are original scenarios written by Science of Apps, and each one is based on a public source you can read: jQuery API documentation (OpenJS Foundation); JavaScript reference (MDN Web Docs); HTML reference (MDN Web Docs); Cross Site Scripting (XSS) (OWASP). The source is shown under each question and linked in the answer review. Science of Apps doesn't copy questions from other tests.

What does the jQuery Quiz cover?

Three skill areas with five questions each, drawn from a bank of 10 per area so a retake brings new questions: Selectors and DOM (Selectors, Traversal and Content); Events and Effects (Event handling, Delegation and Effects); Ajax and Modern Practice (Ajax, Data and Modern alternatives). Every question is an original scenario based on a published standard, official documentation or research, named under the question.

Who should take the jQuery Quiz?

Front-end developer, Web developer, WordPress developer, Junior developer and Maintenance developer. It suits anyone who wants a quick, verifiable way to show jQuery skills, from students and career switchers to experienced professionals.

Can I use this for jquery interview questions, jquery practice questions or jquery basics quiz?

Yes. The jQuery Quiz is free and covers all of these: 15 scenario questions in 15 minutes, each answer explained with the source it comes from, so it works as interview and exam practice. It isn't a full course, so use the areas you miss as your study list. Scoring 70% or more earns a verifiable certificate.

Can I take the jQuery Quiz from any country?

Yes. The quiz is online, in English and free everywhere — people take it from India, the US, the UK, Europe, Africa, Latin America and Asia-Pacific. Your certificate is dated with your own local date and can be verified from anywhere at scienceofapps.com/certification/verify/.

How long is the jQuery Quiz?

15 questions — 5 from each of 3 skill areas — with a 15-minute limit. You need 70% (11 of 15) to pass and 90% for distinction.

How hard is the jQuery Quiz?

We rate it Beginner: no experience needed: fundamentals and clear reasoning. It has 15 scenario questions — 5 from each of 3 skill areas — and a 15-minute limit. You need 70% (11 of 15) to pass and 90% for distinction.

How much do Science of Apps certifications cost?

Nothing. There is no fee to take a test, to receive the certificate, to have it emailed or to verify it, and no sign-up.

How are the tests graded?

On our server, not in your browser. The answers never reach the page until you submit, so a certificate can only be earned by passing. Each certificate gets a unique credential ID stored by Science of Apps.

What happens if I don't pass?

You see your score for each area and every question with the correct answer and why, with the published source behind it. You can retake after 30 minutes, and the retake draws questions you haven't seen yet.

Do the certificates expire?

No. Every certificate is dated, so it always shows when you passed. Retake a test any time for a newer date or a higher score.

Can I add the certificate to LinkedIn?

Yes. After you pass, Add to LinkedIn opens the Licenses & certifications form with the certificate name, Science of Apps as the issuer, the issue date, your credential ID and the verification link filled in. You can also download it as a PDF or PNG, and it's emailed to you as a PDF.

How can an employer verify my certificate?

Every certificate has a credential ID and a QR code. Scanning it, or entering the ID at scienceofapps.com/certification/verify/, shows the holder's name, the certification, the score and the issue date from our records.

Are these accredited qualifications?

No. They are Science of Apps' own assessments of applied skill. They aren't issued by a university or standards body, and they work best alongside a portfolio that shows the skills in real work.

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