JS-Dev-101
Salesforce Certified JavaScript Developer I practice test
204 Salesforce JS-Dev-101 practice questions with explanations, in study, timed and flashcard modes. 17 samples are free.
Full access
$99
- All 204 questions with explanations
- Study, timed and flashcard modes
- Progress saved, resume any time
- Questions
- 204
- Free samples
- 17
- Versions
- 1
- Updated
- Mar 2026
Exam simulator
Practice JS-Dev-101 in the simulator.
Study, timed and flashcard modes. Answers and explanations as you go, and your progress saves.
At a glance
JS-Dev-101, by the numbers.
Official specifications published by Salesforce.
- Duration
- 105 min
- Questions
- 65
- Passing score
- 65%
- Exam fee
- $200
- In the bank
- v1 (204)
Exam guide
Everything about JS-Dev-101.
JS-Dev-101 · Salesforce · v1.0
Exam information
Official specifications published by Salesforce, plus what is in our question bank.
- Duration
- 105 min
- Questions
- 65
- Passing score
- 65%
- Level
- Professional
- Question types
- Multiple Choice, Multiple Select
What JS-Dev-101 covers
7 weighted domains. Open a domain for its topics, and a topic for its objectives. Practice questions are tagged to these.
How do I earn this certification?
Passing JS-Dev-101 earns the Salesforce Certified JavaScript Developer I in the Developer track.
- No formal exam prerequisitesoptional
How to study for this exam?
Use the JS-Dev-101 practice test alongside the official material below.
- Study for the Salesforce JavaScript Developer I Exam (Trail)interactive_trail
Official study trail with three cert prep modules containing practice questions, flashcards, and study guides for all 7 exam domains.
Comprehensive curated trailmix covering all JavaScript fundamentals needed for the exam, including hands-on projects and interactive learning.
Required for the full certification. Validates hands-on Lightning Web Component development skills. Has prerequisite Trailhead modules.
- Salesforce JavaScript Developer I Cert Prep PDF (Module 1)pdf_study_guide
Official downloadable PDF study guide for Variables, Types, Collections, Objects, Functions, and Classes domains with practice questions and answers.
- Trailhead Academy Instructor-Led Traininginstructor_led
Official Salesforce instructor-led training options available through Trailhead Academy.
What's changed on this exam?
Status and coverage changes that affect what you should study.
- Current status
- ACTIVE
Who should take this exam?
Three ways to practise
Study mode
Work through the bank at your own pace with the answer and explanation one tap away. Flag questions, add notes, bookmark the hard ones.
Open in the simulator
Timed mode
A shuffled deck with a countdown that mirrors the real exam. Your score is saved to your attempt history.
Open in the simulator
Flashcards
Question on the front, answer on the back. Good for the last week before the exam.
Open in the simulator
