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

  • Exam Code: JavaScript-Developer-I
  • Exam Name: Salesforce Certified JavaScript Developer (JS-Dev-101)
  • Updated: Sep 11, 2026
  • Q & A: 149 Questions and Answers

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About Salesforce Certified JavaScript Developer (JS-Dev-101) : JavaScript-Developer-I Valid Exam Questions

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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).

For who want to work in Salesforce, passing JavaScript-Developer-I Salesforce Certified JavaScript Developer (JS-Dev-101) is the first step to closer your dream. As one of most reliable and authoritative exam, Salesforce Certified JavaScript Developer (JS-Dev-101) is a long and task for most IT workers. It is very difficult for office workers who have no enough time to practice Salesforce Certified JavaScript Developer (JS-Dev-101) vce files to pass exam at first attempt. So you need a right training material to help you. As an experienced dumps leader, our website provides you most reliable Salesforce Certified JavaScript Developer (JS-Dev-101) vce dumps and study guide. We offer customer with most comprehensive Salesforce Certified JavaScript Developer (JS-Dev-101) pdf vce and the guarantee of high pass rate. The key of our success is to constantly provide the best quality Salesforce Certified JavaScript Developer (JS-Dev-101) valid dumps with the best customer service.

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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.

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

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

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

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Salesforce JavaScript-Developer-I Exam Syllabus Topics:

SectionWeightObjectives
Topic 1: Server Side JavaScript8%- Node.js fundamentals
- CLI commands
- Core Node.js modules
- Server-side JavaScript implementations
- Package management (npm)
Topic 2: Objects, Functions, and Classes25%- Modules and decorators
- Object creation and manipulation
- Prototypal inheritance
- Arrow functions
- Function declarations and expressions
- Higher-order functions
- Variable scope and closures
- ES6 classes and inheritance
- Execution flow and context
Topic 3: Variables, Types, and Collections23%- Truthy and falsy evaluations
- JSON parsing and manipulation
- Variable declarations and initialization
- Strings, numbers, and dates
- Arrays and collections
- Type coercion and conversion
- Primitive and complex data types
Topic 4: Testing7%- Test effectiveness evaluation
- Unit testing concepts
- Writing and modifying unit tests
- Test coverage and reliability
Topic 5: Browser and Events17%- DOM manipulation
- Event propagation (bubbling and capturing)
- Interacting with forms and user input
- Browser Developer Tools usage
- Event handling and listeners
- Browser-specific APIs
Topic 6: Debugging and Error Handling7%- Error handling techniques (try/catch/finally)
- Breakpoints and code inspection
- Console methods for debugging
- Custom error types
Topic 7: Asynchronous Programming13%- Callbacks
- Async/Await syntax
- Promises (creation, chaining, error handling)
- Event loop and execution flow
- Asynchronous patterns for business requirements

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