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Salesforce JavaScript-Developer-I dumps - in .pdf

JavaScript-Developer-I pdf
  • Exam Code: JavaScript-Developer-I
  • Exam Name: Salesforce Certified JavaScript Developer (JS-Dev-101)
  • Updated: Aug 05, 2026
  • Q & A: 149 Questions and Answers
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  • Exam Code: JavaScript-Developer-I
  • Exam Name: Salesforce Certified JavaScript Developer (JS-Dev-101)
  • Updated: Aug 05, 2026
  • Q & A: 149 Questions and Answers
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Salesforce JavaScript-Developer-I dumps - Testing Engine

JavaScript-Developer-I Testing Engine
  • Exam Code: JavaScript-Developer-I
  • Exam Name: Salesforce Certified JavaScript Developer (JS-Dev-101)
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  • Q & A: 149 Questions and Answers
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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).

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

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What is the duration, language, and format of Salesforce JavaScript-Developer-I Exam

  • This exam is offered in only English.
  • Passing score 65%
  • There is a time limit of 105 minutes for the exam.
  • This exam consists of 60 questions
  • The type of questions is Multiple Choice and situation-based questions.

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

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).

Salesforce JavaScript-Developer-I Exam Syllabus Topics:

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

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