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Salesforce Certified JavaScript Developer I
The Salesforce Certified JavaScript Developer I exam validates a candidate's proficiency in modern JavaScript (ES6+)
- 105 min
- 65% to pass
- 60 bank questions
- 7 domains
certilumExam syllabus, organized by domain
The official Salesforce blueprint, with the real weight each domain carries on test day.
Try a real question
Answer one question from the live bank. Grading happens on our servers, so the answer key never reaches the page.
Try a real question
Sample Salesforce Certified JavaScript Developer I exam question
Answer this question the same way you would on exam day. No sign-up needed — one random question, three tries to swap it out.
The code block shows an asynchronous assertion. Why might the test pass before the Promise is actually resolved?
test('returns value', () => {
expect(getValue()).resolves.toBe('done');
});Exam facts at a glance
Every figure below comes from the certification record or from the question bank itself.
- Time limit
- 105 minutes
- Passing score
- 65%
- Domains
- 7
- Questions in our bank
- 60
- Level
- ASSOCIATE
- Measured complexity
- 1.9 / 10
- Question mix
- 23 single · 20 multi · 17 interactive
Where the hard questions actually are
We score every question in the bank 1-10 on a reproducible formula. Below is the per-domain breakdown.
- Asynchronous Programming8 questions · complexity 2.0/10 · Gentle
38% multi-select · 0% scenario · 25% interactive
- Browsers and Events10 questions · complexity 1.8/10 · Gentle
30% multi-select · 0% scenario · 30% interactive
- Debugging and Error Handling4 questions · complexity 1.8/10 · Gentle
25% multi-select · 0% scenario · 25% interactive
- Objects, Functions, and Classes15 questions · complexity 2.0/10 · Gentle
33% multi-select · 0% scenario · 33% interactive
- Server-side JavaScript5 questions · complexity 2.0/10 · Gentle
40% multi-select · 0% scenario · 20% interactive
- Testing4 questions · complexity 1.5/10 · Gentle
25% multi-select · 0% scenario · 25% interactive
- Variables, Types, and Collections14 questions · complexity 2.0/10 · Gentle
36% multi-select · 0% scenario · 29% interactive
Read the questions before you take them
The question bank with the correct answer and a written explanation for every item.
Frequently asked questions
What you need to know before attempting the Salesforce Certified JavaScript Developer I certification.
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