Salesforce • JS-Dev-101
Salesforce Certified JavaScript Developer
Overview
The Salesforce Certified JavaScript Developer I certification (JS-Dev-101) is one of the most in-demand developer credentials in 2026. This certification validates your real-world JavaScript skills and proves your ability to work with modern web technologies and Lightning Web Components (LWC).
The Salesforce Certified JavaScript Developer I certification (JS-Dev-101) is one of the most in-demand developer credentials in 2026. This certification validates your real-world JavaScript skills and proves your ability to work with modern web technologies and Lightning Web Components (LWC).
At ExamDumps360, we provide Salesforce JavaScript Developer I examdumps, real exam questions, and a question and answers PDF file designed to help you pass the exam on your first attempt with confidence.
This guide explains the exam structure, domains, preparation strategy, and how ExamDumps360 Salesforce exam dumps help you achieve guaranteed success.
What Is the Salesforce JavaScript Developer I Certification?
The Salesforce JavaScript Developer I certification 2026 is a two-part credential:
JavaScript Developer I Exam (JS-Dev-101)
Lightning Web Components Specialist Superbadge
Unlike other Salesforce certifications, this exam is platform-agnostic. It focuses on pure JavaScript concepts, not Salesforce configuration or Apex. This makes it ideal for web developers, front-end engineers, and Salesforce professionals who want to master JavaScript fundamentals.
With ExamDumps360 Salesforce JavaScript Developer I dumps PDF file, you gain access to updated, exam-aligned questions that reflect the real testing environment.
Salesforce JavaScript Developer I Exam Details (2026)
| Exam Detail | Information |
|---|---|
| Exam Code | JS-Dev-101 |
| Questions | 60 (up to 5 unscored pilot questions) |
| Passing Score | 65% |
| Exam Duration | 105 minutes |
| Question Type | Multiple-choice & multi-select |
| Delivery | Online or Onsite (Pearson VUE) |
| Credential Validity | Lifetime (No maintenance required) |
Using Salesforce JavaScript Developer I real exam questions from ExamDumps360 significantly increases your passing chances.
Salesforce JavaScript Developer I Exam Domains & Weightage
The JS-Dev-101 exam covers seven domains:
1. Variables, Types, and Collections – 23%
Covers var, let, const, type coercion, arrays, JSON, strings, dates, and array methods like map, filter, and reduce.
2. Objects, Functions, and Classes – 25%
Focuses on objects, functions, ES6 classes, inheritance, modules, arrow functions, decorators, and this behavior.
3. Browser and Events – 17%
Includes DOM manipulation, event handling, bubbling, capturing, Fetch API, and browser APIs.
4. Debugging and Error Handling – 7%
Tests JavaScript error types, try-catch-finally, custom errors, and debugging tools.
5. Asynchronous Programming – 13%
Covers Promises, async/await, callbacks, event loop, and error handling in async code.
6. Server Side JavaScript – 8%
Node.js basics, npm, core modules (fs, http), and ES modules vs CommonJS.
7. Testing – 7%
Unit testing concepts, Jest basics, mocks, stubs, spies, and test isolation.
All these domains are fully covered in Salesforce JavaScript Developer I question and answers PDF file from ExamDumps360.
Why Choose ExamDumps360 for JS-Dev-101 Exam Preparation?
ExamDumps360 is trusted by thousands of IT professionals worldwide for Salesforce examdumps. Our materials are designed to match real exam scenarios.
Key Benefits of ExamDumps360:
Updated Salesforce JavaScript Developer I examdumps
Real exam questions verified by experts
Salesforce JavaScript Developer I dumps PDF file
Accurate answers with explanations
100% exam-focused content
High pass rate with first attempt success
Our JS-Dev-101 exam dumps help you practice real questions before the exam and eliminate surprises on exam day.
Lightning Web Components Specialist Superbadge Explained
The Lightning Web Components Specialist superbadge is a hands-on coding challenge that tests your practical JavaScript and LWC skills.
16 coding challenges
2 quizzes
Real-world application development
Requires DOM, async JavaScript, modules, and LWC communication
Completing the superbadge first strengthens your understanding and helps you answer Salesforce JavaScript Developer I real exam questions more confidently.
Who Should Take This Certification?
This certification is perfect for:
Web Developers entering Salesforce
Salesforce Developers upgrading JavaScript skills
LWC Developers
Front-End Developers
Full-Stack Salesforce Developers
If you want proof of real JavaScript expertise, this certification combined with ExamDumps360 Salesforce JavaScript Developer I examdumps is the fastest path to success.
Career Benefits After JS-Dev-101 Certification
Certified professionals can apply for roles such as:
Salesforce JavaScript Developer
Lightning Web Components Developer
Front-End Salesforce Developer
Full-Stack Salesforce Developer
Final Words
The Salesforce Certified JavaScript Developer I exam is challenging, technical, and time-sensitive. Success requires focused preparation and real exam-level practice.
With ExamDumps360 Salesforce JavaScript Developer I dumps PDF file, real exam questions, and verified answers, you can confidently pass the JS-Dev-101 exam on your first attempt.
