Get real JavaScript-Developer-I exam questions for better preparation

Real Salesforce JavaScript-Developer-I practice exam questions for easy pass!

Last Updated: Sep 24, 2026

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Salesforce JavaScript-Developer-I Practice Q&A's

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How to Study the Salesforce JavaScript-Developer-I Exam

The best study material one can get is the JavaScript-Developer-I practice exam dumps. To ensure good grades, do attempt the JavaScript-Developer-I practice exams. The JavaScript Developer I from Salesforce typically has 1-2 years of experience as a JavaScript developer with the following JavaScript topics.

  • Control of Mistake

  • Classes

  • Scope of Variables

  • Strings

  • Activities

  • Item Model Document

  • JavaScript on the backend

  • Objects & Arrays: Data Structures

  • Forms of data and operators

  • Functions (more functions in higher order)

  • Asynchronous Programming

  • Monitor (agnostic platform)

  • Modules

  • Discharge

  • Conversion type (inclusive versus explicit)

To prepare for this test, we advise a combination of practical experience, completion of training courses, pathways and self-study in the areas listed in the examination outline section of this examination guide.

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Salesforce JavaScript Developer I Certification Path

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

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Salesforce JavaScript-Developer-I Exam Syllabus Topics:

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

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