Salesforce : JavaScript-Developer-I日本語 Questions & Answers
Updated: Aug 19, 2026
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Who should take the Salesforce JavaScript-Developer-I Exam
This course is designed for Javascript developers starting on the Salesforce platform who require programming customizations on front-end and back-end. There are no prerequisites for Salesforce JavaScript Developer I Exam. Typical job roles that align to the Salesforce Certified JavaScript Developer I are as follows:
- Front end developer
- JavaScript programmer
- Salesforce developer
- Technical Product Manager
- Full stack developer
- Software/backend developer
- Technical Project Manager
- Support engineer
- UI/UX Engineer
- Web application developer
Reference: https://trailheadacademy.salesforce.com/certificate/exam-javascript-dev---JS-Dev-101
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).
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.
Item Model Document
Modules
Functions (more functions in higher order)
Forms of data and operators
Strings
Objects & Arrays: Data Structures
Activities
Monitor (agnostic platform)
Scope of Variables
Discharge
Asynchronous Programming
Control of Mistake
Conversion type (inclusive versus explicit)
JavaScript on the backend
Classes
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.
Salesforce JavaScript-Developer-I日本語 Exam Syllabus Topics:
| Section | Objectives |
|---|---|
| Topic 1: Testing and Debugging | - Debugging techniques and tools - Unit testing principles |
| Topic 2: JavaScript Language Fundamentals | - ES6+ syntax and features - Data types, variables, and operators - Functions, scope, and closures |
| Topic 3: Salesforce Platform Integration | - Security considerations in Salesforce JavaScript - Calling Apex methods from JavaScript - Lightning Web Components (LWC) JavaScript usage |
| Topic 4: Asynchronous JavaScript | - Promises and async/await - Error handling in async workflows - Event loop and concurrency model |
| Topic 5: Browser and DOM Interaction | - Browser APIs (fetch, storage, timers) - Event handling and propagation - DOM manipulation and traversal |
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