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

JavaScript-Developer-I日本語 testking pdf

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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About Salesforce JavaScript-Developer-I日本語 Exam

Average Salary for Salesforce JavaScript-Developer-I Exam Certified Professional

Salesforce JavaScript Developer roles are in great demand nowadays. The average salaries of Salesforce JavaScript Developer I exam Certified professional in:

  • Europe - 63,500 Euro
  • United State - 129,630 USD
  • England - 60,200 POUND

How to Study the Salesforce JavaScript-Developer-I Exam

The best study material one can get is the JavaScript-Developer-I practice exam dumps. To ensure good grades, do attempt the JavaScript-Developer-I practice exams. The JavaScript Developer I from Salesforce typically has 1-2 years of experience as a JavaScript developer with the following JavaScript topics.

  • Monitor (agnostic platform)

  • Forms of data and operators

  • Strings

  • Scope of Variables

  • JavaScript on the backend

  • Discharge

  • Item Model Document

  • Activities

  • Functions (more functions in higher order)

  • Asynchronous Programming

  • Classes

  • Control of Mistake

  • Modules

  • Objects & Arrays: Data Structures

  • Conversion type (inclusive versus explicit)

To prepare for this test, we advise a combination of practical experience, completion of training courses, pathways and self-study in the areas listed in the examination outline section of this examination guide.

Dear examinee, as one of the candidates of JavaScript-Developer-I日本語 exam, the importance of this test to you is self-evident, it is useful not only to your aim job, but also to your future plans in related careers. Now we offer JavaScript-Developer-I日本語 PDF study guide with test king here to help. With the support of a group of Salesforce experts and trainers, we systemized a series of JavaScript-Developer-I日本語 PDF study guide for your reference. As long as you log on our website and download our free demo, you can take a quick look of JavaScript-Developer-I日本語 PDF study guide materials with test king arranged by professional experts, who keep their minds on latest trend of JavaScript-Developer-I日本語 Test dumps. Please keep your attention on some advantages of our products as follows.

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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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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.

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

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

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