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Salesforce Certified JavaScript Developer (JS-Dev-101) : JavaScript-Developer-I

JavaScript-Developer-I
  • Exam Code: JavaScript-Developer-I
  • Exam Name: Salesforce Certified JavaScript Developer (JS-Dev-101)
  • Updated: Jul 31, 2026
  • Q & A: 149 Questions and Answers
  • PDF Version

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  • PDF Price: $59.99
  • Salesforce JavaScript-Developer-I Value Pack

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About Salesforce JavaScript-Developer-I Exam

Salesforce JavaScript Developer I Certification Path

You must get an idea of exactly what this certification is, before investing your valuable time, effort, or money in Salesforce. The demand and the need for Salesforce certified professionals are rapidly growing and so Salesforce JavaScript Developer I Certification is becoming more and more popular. Different types of online training sessions are provided such as Intellipaat 's online training sessions for the Salesforce JavaScript Developer I Qualification . It is instructor-led teaching by subject professionals working in major organizations. This style of training includes live sessions with the teacher, along with a forum where you can clear all your course-based doubts.

Self-paced sessions are also offered. This training mode involves pre-recorded video sessions. You can conveniently return to these talks and revisit the subjects you have skipped whether you have any difficulties with the lectures or have difficulty keeping up with the online meetings. You will also use these sessions to finish your exercise at your speed while you access these online lessons throughout your life.

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 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.

  • Asynchronous Programming

  • Monitor (agnostic platform)

  • Activities

  • Objects & Arrays: Data Structures

  • Forms of data and operators

  • Scope of Variables

  • Classes

  • JavaScript on the backend

  • Modules

  • Control of Mistake

  • Discharge

  • Conversion type (inclusive versus explicit)

  • Item Model Document

  • Strings

  • Functions (more functions in higher order)

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.

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

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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).

Have you ever dreamed about passing the most important exam such as Salesforce JavaScript-Developer-I in your field with great ease? Do you want to prepare for the exam with the best study materials such as our JavaScript-Developer-I test preparation: Salesforce Certified JavaScript Developer (JS-Dev-101)? I firmly believe that a majority of workers in this field would give me the positive answers for those questions since the pass rate for Salesforce Salesforce Certified JavaScript Developer (JS-Dev-101) is really low, and if you are exactly one of the persons who have lofty ambitions in your field and are confused about how to prepare for the exam, you really should resort to our JavaScript-Developer-I exam lab questions, which is definitely can fulfill your every needs. There are innumerable merits of our JavaScript-Developer-I study guide questions, and now I would like to show some of the shining points for you, namely, high pass rate, free demo available 24/7 after sale service so on and so forth.

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Salesforce JavaScript-Developer-I Exam Syllabus Topics:

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

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