Salesforce Certified JavaScript Developer I Exam (JavaScript-Developer-I日本語版) : JavaScript-Developer-I日本語
- Exam Code: JavaScript-Developer-I日本語
- Exam Name: Salesforce Certified JavaScript Developer I Exam (JavaScript-Developer-I日本語版)
- Updated: Sep 11, 2026
- Q & A: 149 Questions and Answers
About Salesforce Certified JavaScript Developer I Exam (JavaScript-Developer-I日本語版) : JavaScript-Developer-I日本語 Exam
How much Salesforce JavaScript-Developer-I Exam Cost
The price of the Salesforce JavaScript Developer I certification is $200 USD, for more information related to the Salesforce JavaScript-Developer-I Exam please visit Salesforce website.
Reference: https://trailheadacademy.salesforce.com/certificate/exam-javascript-dev---JS-Dev-101
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Salesforce JavaScript-Developer-I日本語 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Asynchronous Programming | 13% | - Event loop and micro/macro tasks - Promises and chaining - Async/await syntax - Fetch API and HTTP requests - Callbacks and callback hell |
| Testing | 7% | - Testing frameworks and assertions - Unit testing concepts - Test doubles and mocks - Code coverage and best practices |
| Objects, Functions, and Classes | 25% | - Class syntax, inheritance, and prototypes - Function definitions, parameters, and scope - Closures and execution context - Decorators and advanced function patterns - Modules and imports/exports - Object creation, properties, and methods |
| Variables, Types, and Collections | 23% | - Type coercion and conversion rules - Array methods and data manipulation - Working with strings, numbers, dates, and booleans - Truthy and falsy values - Variable declaration and initialization - JSON parsing and usage |
| Server-Side JavaScript | 8% | - Core Node.js modules - Module system and require/import - Node.js fundamentals and runtime - Command-line tools and scripts |
| Debugging and Error Handling | 7% | - Debugging tools and breakpoints - Console methods and logging - Error types and exception handling - Defensive programming practices |
| Browsers and Events | 17% | - Script loading and execution order - Browser APIs and Web Storage - Window and document object properties - Event handling, propagation, and delegation - Document Object Model (DOM) manipulation |
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