FreePdfDump issues a full refund if you take the Salesforce Certified JavaScript Developer I Exam (JavaScript-Developer-I日本語版) exam within 60 days of purchase and do not pass. The policy does not apply if the exam is taken within 3 days of purchase, if the exam was never actually taken, or to free materials or expired orders, and the candidate name must match the payer name. Submit a scan of your enrollment slip and the official Score Report PDF within 2 days of the exam; claims are processed within 7 days. Alternatively, exchange for two free exam products of equal value and keep your original update service. Orders arrive by email within 1 minute — contact support if nothing arrives within 2 hours.

The official Salesforce Certified JavaScript Developer I Exam (JavaScript-Developer-I日本語版) outline defines 7 domains. The leading three are Testing (7%), Objects, Functions, and Classes (25%), and Debugging and Error Handling (7%). The full list is in the topics section above, and FreePdfDump's 149 practice questions cover each one.

Three versions of the same study materials, offering three learning modes: a printable, expert-prepared PDF with free demo download and instant access; a Desktop Test Engine for Windows with customizable simulation and timed modes that works offline; and an Online Test Engine for any browser on Windows, Mac, Android, and iOS with test history and performance review. All 149 practice questions are identical across versions. Every purchase includes 365 days of free updates, a 50% renewal discount afterward, and unlimited computer installations.

No formal prerequisites; 1–2 years of JavaScript development experience recommended Since requirements change over time, confirm the latest on the official Salesforce exam page before scheduling.

The JavaScript-Developer-I日本語 exam is a Salesforce certification exam validating the Salesforce Certified JavaScript Developer I Exam (JavaScript-Developer-I日本語版) syllabus shown above. It belongs to these credential paths: Salesforce Certified Platform Developer I, Salesforce Certified Lightning Web Components Specialist. Candidates in 2026 prepare for it with FreePdfDump's 149 practice questions, available as a printable PDF, a Windows Desktop Test Engine, and an Online Test Engine — three versions of the same materials.

Online proctored or onsite at authorized testing centers Register for the Salesforce Certified JavaScript Developer I Exam (JavaScript-Developer-I日本語版) exam through these official channels:

• Salesforce Certification Registration

After booking, FreePdfDump delivers your practice questions within 1 minute — preparation starts the same day.

Salesforce recommends these training resources for the Salesforce Certified JavaScript Developer I Exam (JavaScript-Developer-I日本語版) exam:

• Salesforce JavaScript Developer I Certification Prep

Follow the training with steady self-testing — the 149 practice questions from FreePdfDump help you apply theory and fill any gaps the training leaves.

The Salesforce Certified JavaScript Developer I Exam (JavaScript-Developer-I日本語版) exam contains 60 scored + up to 5 unscored to complete within 105 minutes. Timed simulation in the FreePdfDump Desktop Test Engine teaches that rhythm before exam day does.

The Salesforce Certified JavaScript Developer I Exam (JavaScript-Developer-I日本語版) exam requires 65% to pass, and registration costs USD 200 (+ applicable taxes). A failed attempt means paying the same fee again — a readiness check with the FreePdfDump engines before booking is the cheaper option.