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

Updated: Jul 26, 2026
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About Salesforce JavaScript-Developer-I日本語 Exam

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

It is well known that JavaScript-Developer-I日本語 is a major test of Salesforce and plays a big role in IT industry. Getting the JavaScript-Developer-I日本語 certification means you are recognized by the big IT companies. You will enter into the Fortune 500 Company and work with extraordinary guys, the considerable salary and benefits and promotion, all this stuff are waiting for you. But the high quality and difficulty make you stop trying for JavaScript-Developer-I日本語 certification. You have no time to prepare the JavaScript-Developer-I日本語 certification dumps and no energy to remember the key points of JavaScript-Developer-I日本語 real dumps. Besides, the cost of JavaScript-Developer-I日本語 test is high; you will suffer a great loss in the time and money if you failed. You wonder how to pass test with less time and high efficiency. Now, let DumpsValid help you to release the worry.

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Benefits in Obtaining Salesforce JavaScript-Developer-I Certification

With the introduction of the Lightning Experience by Salesforce, it is possible to develop cool, looking applications for a wide range of tasks. Admins have been able to create beautiful pages for their objects more than ever, with an interface entirely tailored for each user.For developers, the same application has never before been possible for Salesforce developers to create applications that stretch well beyond Salesforce's declarative features. It's all achieved with the use of a JavaScript application for Lightning & Lightning Web components.

The certification for JavaScript Developer I has just been released and fills a large gap in the certification list for Salesforce. Salesforce Developers who want to prove their Lightning skills, but also new entrants into the Salesforce community, are certified to demonstrate that they know what is relevant. A typical Salesforce 60 multi-choice test is split into two parts and is influenced by a super badge (Similar to Developer II certification).

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

SectionWeightObjectives
Topic 1: Debugging and Error Handling7%- Error types and exception handling
- Console methods and logging
- Defensive programming practices
- Debugging tools and breakpoints
Topic 2: Variables, Types, and Collections23%- Type coercion and conversion rules
- Truthy and falsy values
- Array methods and data manipulation
- JSON parsing and usage
- Working with strings, numbers, dates, and booleans
- Variable declaration and initialization
Topic 3: Server-Side JavaScript8%- Command-line tools and scripts
- Core Node.js modules
- Module system and require/import
- Node.js fundamentals and runtime
Topic 4: Asynchronous Programming13%- Callbacks and callback hell
- Async/await syntax
- Fetch API and HTTP requests
- Promises and chaining
- Event loop and micro/macro tasks
Topic 5: Objects, Functions, and Classes25%- Class syntax, inheritance, and prototypes
- Decorators and advanced function patterns
- Modules and imports/exports
- Closures and execution context
- Object creation, properties, and methods
- Function definitions, parameters, and scope
Topic 6: Testing7%- Test doubles and mocks
- Code coverage and best practices
- Unit testing concepts
- Testing frameworks and assertions
Topic 7: Browsers and Events17%- Script loading and execution order
- Event handling, propagation, and delegation
- Document Object Model (DOM) manipulation
- Browser APIs and Web Storage
- Window and document object properties

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