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

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Exam Code: JavaScript-Developer-I-JPN

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

Updated: Jul 24, 2026

Q & A: 149 Questions and Answers

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Introduction to Salesforce JavaScript Developer I Exam

The credential Salesforce Accredited JavaScript Developer I is meant for applicants who build JavaScript applications for the web stack on the front-end and/or back-end.This validates both key JavaScript expertise and functional skills for applicants, for example, Lightning Components Platform, and Lightning Web Component technology relevant to JavaScript. Lightning web elements are personalised HTML elements that are designed with traditional HTML and modern JavaScript.

The Salesforce JavaScript Developer I certification requires two parts: the multiple-choice test given by the JavaScript Developer I and the Superbadge Lightning Web Components. In any order, all these credentials can be accessed. A Salesforce Certified Javascript Developer I certification is immediately obtained by adding these two certificates. The qualification applicant for Salesforce JavaScript Accredited Developer I will use the JavaScript language to build front-end or back-end software in one or more frameworks. The applicant will plan, build and evaluate effective , safe and reusable solutions.

The candidate can use JavaScript-specific programming style patterns and can use CSS , HTML, and other languages for integrating JavaScript. With Lightning Web Components, any JavaScript developer can build on Salesforce easily. This means that millions of JavaScript developers around the world will code on Salesforce without learning anything new. Developers can create and deploy brand-new fast apps on Salesforce using the current Lightning Platform development services portfolio and the modern JavaScript language. Salesforce JavaScript Developer I Certificate from Salesforce is designed to help Salesforce partners, customers and employees working on JavaScript as well as the Lightning Component Platform, know-how and knowledge and creation of Lightning web components (LWC's).

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

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As Javascript development observed in nearly all organizations, Salesforce JavaScript-Developer-I is the most successful qualification candidates can get on their resume. Professionals have therefore been known to demonstrate concern. But this JavaScript-Developer-I can be very easy to clear if practitioners study with JavaScript-Developer-I exam dumps and then take the JavaScript-Developer-I practice exams. However, with accurate focusing and proper planning content, candidates will clear the test. With the aid of these materials, aspirants get reasonable idea about the kind of questions they pose in actual certification, the certification questions provides the most-represented JavaScript-Developer-I practice exams. The Salesforce experts check Pass4cram JavaScript-Developer-I exam dumps. Certification questions also include a test for practise and is an ideal forum for checking the information achieved.

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