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

JavaScript-Developer-I日本語 Exam Simulator
  • Exam Code: JavaScript-Developer-I-JPN
  • Exam Name: Salesforce Certified JavaScript Developer I Exam (JavaScript-Developer-I日本語版)
  • Updated: Aug 01, 2026
  • Q & A: 149 Questions and Answers

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About Salesforce JavaScript-Developer-I日本語 Exam Braindumps

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Salesforce JavaScript-Developer-I日本語 exam simulator

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Topics of Salesforce JavaScript Developer I Exam

Aspirants must know the exam topics before they start of preparation. Because it will help them to prepare for the below concepts Salesforce JavaScript-Developer-I exam will include the following topics:

1. Variable, Types, and Collection: 23%

Scenario based coding Variables Creation and Initialization JSON object understanding

2. Object, Functions, and Classes: 25%

Implementation of different functions Understanding of different modules of Javascript Scope of variables and their execution flow

3. Browser and Events: 17%

Handling and propagation of events Development tools of browsers Understanding of browser specific APIs

4. Asynchronous Programming: 13%

Asynchrounous programming different concepts Monitoring and management of different loops

5. Server Side Javascript: 8%

Implementation of Node.js Understanding of Node.js CLI commands

6. Testing: 7%

Unit Testing effectiveness of different tests

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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:

  • Support engineer
  • Software/backend developer
  • Full stack developer
  • UI/UX Engineer
  • Technical Product Manager
  • JavaScript programmer
  • Front end developer
  • Salesforce developer
  • Web application developer
  • Technical Project Manager

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

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

SectionWeightObjectives
Topic 1: Server Side JavaScript8%- Server-side JavaScript implementations
- CLI commands
- Core Node.js modules
- Node.js fundamentals
- Package management (npm)
Topic 2: Testing7%- Unit testing concepts
- Writing and modifying unit tests
- Test effectiveness evaluation
- Test coverage and reliability
Topic 3: Browser and Events17%- DOM manipulation
- Browser Developer Tools usage
- Event propagation (bubbling and capturing)
- Event handling and listeners
- Interacting with forms and user input
- Browser-specific APIs
Topic 4: Objects, Functions, and Classes25%- Higher-order functions
- Prototypal inheritance
- Execution flow and context
- Object creation and manipulation
- Arrow functions
- Modules and decorators
- Variable scope and closures
- ES6 classes and inheritance
- Function declarations and expressions
Topic 5: Asynchronous Programming13%- Asynchronous patterns for business requirements
- Promises (creation, chaining, error handling)
- Callbacks
- Event loop and execution flow
- Async/Await syntax
Topic 6: Debugging and Error Handling7%- Error handling techniques (try/catch/finally)
- Custom error types
- Breakpoints and code inspection
- Console methods for debugging
Topic 7: Variables, Types, and Collections23%- Type coercion and conversion
- Variable declarations and initialization
- Truthy and falsy evaluations
- JSON parsing and manipulation
- Arrays and collections
- Primitive and complex data types
- Strings, numbers, and dates

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