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

JavaScript-Developer-I pass collection

Exam Code: JavaScript-Developer-I

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

Updated: Oct 03, 2026

Q & A: 149 Questions and Answers

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Preparation Guide for Salesforce JavaScript Developer I Exam

Introduction

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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
  • United State - 129,630 USD
  • Europe - 63,500 Euro

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

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Salesforce JavaScript-Developer-I Exam Syllabus Topics:

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

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