Salesforce Certified JavaScript Developer I Exam (JavaScript-Developer-I日本語版) : JavaScript-Developer-I日本語 exam

Exam Code: JavaScript-Developer-I-JPN
Exam Name: Salesforce Certified JavaScript Developer I Exam (JavaScript-Developer-I日本語版)
Updated: Jun 08, 2026
Q & A: 149 Questions and Answers

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About Salesforce Certified JavaScript Developer I Exam (JavaScript-Developer-I日本語版) : JavaScript-Developer-I日本語 Exam Questions

Salesforce JavaScript-Developer-I日本語 Exam Syllabus Topics:

Topic	Details
Topic 1	Objects, Functions, and Classes: In this section, the focus is on applying object-oriented principles, functions, and classes. As a Salesforce JavaScript programmer, you will need to locate optimal function implementations and understand how to structure objects and classes for business solutions. You will also be tested on your ability to use JavaScript modules and decorators, while analyzing variable scope and execution flow.
Topic 2	Testing: In the topic, you will be required to evaluate unit tests and improve them. The exam will assess your ability to identify ineffective tests and modify them to make them more robust and accurate. This topic ensures that you can write and maintain effective tests, a crucial skill for ensuring code quality and reliability in professional environments.
Topic 3	Debugging and Error Handling: This section will measure the ability of JavaScript programmer to properly handle errors and debug JavaScript code. You will be expected to apply debugging techniques, such as using the console and breakpoints, to resolve issues. Proper error handling is crucial, and the exam will evaluate your skills in managing and correcting errors efficiently within your code.
Topic 4	Browser and Events: The topic will challenge your ability to work with events, event handlers, and the DOM. You will need to demonstrate how to manage event propagation and utilize browser-specific APIs. Additionally, proficiency in using browser developer tools to investigate code behavior will be tested, making it crucial for you to understand browser interactions thoroughly.
Topic 5	Server Side JavaScript: This section focuses on Node.js and server-side JavaScript. Salesforce JavaScript programmers will be tested on their ability to identify appropriate Node.js implementations and commands for given scenarios. Additionally, you will need to recognize which Node.js core modules, libraries, and package management solutions fit specific requirements, reflecting your understanding of server-side development with JavaScript.
Topic 6	Variables, Types, and Collections: The topic will test how effectively JavaScript programmers can handle variable creation, initialization, type coercion, and data manipulation. You will need to demonstrate knowledge of strings, numbers, dates, arrays, and JSON handling. The Javascript Developer I exam will require a deep understanding of these concepts and their proper application in real-world scenarios.

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

How to Prepare for Salesforce JavaScript Developer I Exam

Preparation Guide for Salesforce JavaScript Developer I Exam

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What is the duration, language, and format of Salesforce JavaScript-Developer-I Exam

This exam is offered in only English.
This exam consists of 60 questions
The type of questions is Multiple Choice and situation-based questions.
There is a time limit of 105 minutes for the exam.
Passing score 65%

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