Salesforce : JavaScript-Developer-I Questions & Answers
Updated: Sep 23, 2026
No. of Questions: 149 Questions & Answers with Testing Engine
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Salesforce JavaScript Developer I Certification Path
You must get an idea of exactly what this certification is, before investing your valuable time, effort, or money in Salesforce. The demand and the need for Salesforce certified professionals are rapidly growing and so Salesforce JavaScript Developer I Certification is becoming more and more popular. Different types of online training sessions are provided such as Intellipaat 's online training sessions for the Salesforce JavaScript Developer I Qualification . It is instructor-led teaching by subject professionals working in major organizations. This style of training includes live sessions with the teacher, along with a forum where you can clear all your course-based doubts.
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.
For more info read reference:
Salesforce JavaScript-Developer-I Certification leaning site Salesforce JavaScript-Developer-Is Certification resources
Benefits in Obtaining Salesforce JavaScript-Developer-I Certification
With the introduction of the Lightning Experience by Salesforce, it is possible to develop cool, looking applications for a wide range of tasks. Admins have been able to create beautiful pages for their objects more than ever, with an interface entirely tailored for each user.For developers, the same application has never before been possible for Salesforce developers to create applications that stretch well beyond Salesforce's declarative features. It's all achieved with the use of a JavaScript application for Lightning & Lightning Web components.
The certification for JavaScript Developer I has just been released and fills a large gap in the certification list for Salesforce. Salesforce Developers who want to prove their Lightning skills, but also new entrants into the Salesforce community, are certified to demonstrate that they know what is relevant. A typical Salesforce 60 multi-choice test is split into two parts and is influenced by a super badge (Similar to Developer II certification).
Reference: https://trailheadacademy.salesforce.com/certificate/exam-javascript-dev---JS-Dev-101
Salesforce JavaScript-Developer-I Exam Syllabus Topics:
| Section | Objectives |
|---|---|
| JavaScript Language Fundamentals | - ES6+ syntax and features - Functions, scope, and closures - Data types, variables, and operators |
| Testing and Debugging | - Debugging techniques and tools - Unit testing principles |
| Browser and DOM Interaction | - DOM manipulation and traversal - Event handling and propagation - Browser APIs (fetch, storage, timers) |
| Salesforce Platform Integration | - Security considerations in Salesforce JavaScript - Lightning Web Components (LWC) JavaScript usage - Calling Apex methods from JavaScript |
| Asynchronous JavaScript | - Error handling in async workflows - Promises and async/await - Event loop and concurrency model |
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