Salesforce JavaScript-Developer-I exam dumps - Salesforce Certified JavaScript Developer (JS-Dev-101)

  • Exam Code: JavaScript-Developer-I
  • Exam Name: Salesforce Certified JavaScript Developer (JS-Dev-101)
  • Updated: Aug 22, 2026     Q & A: 149 Questions and Answers

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Salesforce JavaScript-Developer-I certification exam is divided into four sections, each of which covers a specific area of Salesforce development. The first section covers JavaScript basics, including data types, operators, and control structures. The second section covers Lightning Web Components, which are used to build modern user interfaces in Salesforce. The third section covers Apex, which is a programming language used to build custom business logic in Salesforce. Finally, the fourth section covers Visualforce, which is a framework used to build custom user interfaces in Salesforce.

To prepare for the Salesforce JavaScript-Developer-I certification exam, developers should have a solid understanding of JavaScript, as well as experience working with the Salesforce platform. They should also be familiar with the Salesforce development environment and the tools and resources available to them. There are a number of online resources available to help developers prepare for the exam, including study guides, practice exams, and online training courses.

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:

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

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Salesforce JavaScript-Developer-I certification exam is an important milestone for professionals who want to validate their technical skills in JavaScript development within the Salesforce platform. Salesforce Certified JavaScript Developer (JS-Dev-101) certification is designed for developers who use JavaScript to build custom applications, automate business processes, and integrate Salesforce with other applications. The Salesforce Certified JavaScript Developer I credential is recognized globally and demonstrates that the holder has the knowledge and expertise to develop and deploy custom solutions on Salesforce.

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

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