Salesforce Certified JavaScript Developer (JS-Dev-101) : JavaScript-Developer-I

  • Exam Code: JavaScript-Developer-I
  • Exam Name: Salesforce Certified JavaScript Developer (JS-Dev-101)
  • Updated: Oct 09, 2026
  • Q & A: 149 Questions and Answers

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About Salesforce Certified JavaScript Developer (JS-Dev-101) : JavaScript-Developer-I Exam

What is the duration, language, and format of Salesforce JavaScript-Developer-I Exam

  • This exam consists of 60 questions
  • This exam is offered in only English.
  • Passing score 65%
  • There is a time limit of 105 minutes for the exam.
  • The type of questions is Multiple Choice and situation-based questions.

For more info read reference:

Salesforce JavaScript-Developer-I Certification leaning site Salesforce JavaScript-Developer-Is Certification resources

Average Salary for Salesforce JavaScript-Developer-I Exam Certified Professional

Salesforce JavaScript Developer roles are in great demand nowadays. The average salaries of Salesforce JavaScript Developer I exam Certified professional in:

  • England - 60,200 POUND
  • Europe - 63,500 Euro
  • United State - 129,630 USD

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Salesforce JavaScript Developer I Certification Path

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Self-paced sessions are also offered. This training mode involves pre-recorded video sessions. You can conveniently return to these talks and revisit the subjects you have skipped whether you have any difficulties with the lectures or have difficulty keeping up with the online meetings. You will also use these sessions to finish your exercise at your speed while you access these online lessons throughout your life.

Reference: https://trailheadacademy.salesforce.com/certificate/exam-javascript-dev---JS-Dev-101

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Salesforce JavaScript-Developer-I Exam Syllabus Topics:

SectionObjectives
Topic 1: Asynchronous JavaScript- Error handling in async workflows
- Event loop and concurrency model
- Promises and async/await
Topic 2: Salesforce Platform Integration- Security considerations in Salesforce JavaScript
- Lightning Web Components (LWC) JavaScript usage
- Calling Apex methods from JavaScript
Topic 3: Browser and DOM Interaction- Event handling and propagation
- DOM manipulation and traversal
- Browser APIs (fetch, storage, timers)
Topic 4: JavaScript Language Fundamentals- Functions, scope, and closures
- ES6+ syntax and features
- Data types, variables, and operators
Topic 5: Testing and Debugging- Unit testing principles
- Debugging techniques and tools

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