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

"Salesforce Certified JavaScript Developer I Exam (JavaScript-Developer-I日本語版)", also known as JavaScript-Developer-I exam, is a Salesforce Certification. With the complete collection of questions and answers, UpdateDumps has assembled to take you through 149 Q&As to your JavaScript-Developer-I Exam preparation. In the JavaScript-Developer-I exam resources, you will cover every field and category in Salesforce Developer Certification helping to ready you for your successful Salesforce Certification.

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  • Updated on: Sep 18, 2026
  • No. of Questions: 149 Questions & Answers

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  • Updated on: Sep 18, 2026
  • No. of Questions: 149 Questions & Answers

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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:

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

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

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How to Prepare for Salesforce JavaScript Developer I Exam

Preparation Guide for Salesforce JavaScript Developer I Exam

Introduction

Salesforce is a solution for managing customer relationships that unite customers and companies. This is an interactive CRM platform that provides a single, shared view of every client in all the divisions including marketing, distribution, exchange, and operation. Provide the clients with the individual experience Salesforce demand 360 product via the Integrated CRM Platform. It delivers solid and related goods to boost marketing, revenue, exchange, operation, IT, and more. Salesforce is a digital cloud computing (SaaS) firm specializing in the management of client relationships (CRMs). There was a mistake. The app is now the number one of consumer satisfaction and allows organizations to track customer behavior, advertise to consumers, and more. Salesforce is common because it is bundled with features such as contact management, workflow development, task management, incentive monitoring, teamwork tools, customer experience tools, analytics, and interactive, smartphone dashboard.

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.

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

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

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