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: Aug 25, 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
Salesforce Certified JavaScript Developer I Exam (JavaScript-Developer-I日本語版) pdf study material
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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.
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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).
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.
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 |
|---|---|---|
| Topic 1: Objects, Functions, and Classes | 25% | - Modules and decorators - Higher-order functions - Arrow functions - Prototypal inheritance - Variable scope and closures - Function declarations and expressions - Object creation and manipulation - Execution flow and context - ES6 classes and inheritance |
| Topic 2: Debugging and Error Handling | 7% | - Custom error types - Console methods for debugging - Error handling techniques (try/catch/finally) - Breakpoints and code inspection |
| Topic 3: Browser and Events | 17% | - Event handling and listeners - Browser Developer Tools usage - Interacting with forms and user input - DOM manipulation - Browser-specific APIs - Event propagation (bubbling and capturing) |
| Topic 4: Server Side JavaScript | 8% | - Package management (npm) - Server-side JavaScript implementations - Node.js fundamentals - Core Node.js modules - CLI commands |
| Topic 5: Variables, Types, and Collections | 23% | - Variable declarations and initialization - Strings, numbers, and dates - Arrays and collections - JSON parsing and manipulation - Type coercion and conversion - Truthy and falsy evaluations - Primitive and complex data types |
| Topic 6: Asynchronous Programming | 13% | - Event loop and execution flow - Callbacks - Async/Await syntax - Promises (creation, chaining, error handling) - Asynchronous patterns for business requirements |
| Topic 7: Testing | 7% | - Test effectiveness evaluation - Unit testing concepts - Test coverage and reliability - Writing and modifying unit tests |
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