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Exam Number : Javascript-Developer-I
Exam Name : Salesforce Certified JavaScript Developer I
Vendor Name : SalesForce
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Javascript-Developer-I test Format | Javascript-Developer-I Course Contents | Javascript-Developer-I Course Outline | Javascript-Developer-I test Syllabus | Javascript-Developer-I test Objectives
Exam Details for Javascript-Developer-I Salesforce Certified JavaScript Developer I:
Exam Specification:
- Number of Questions: The test typically consists of multiple-choice questions- with a total of approximately 60 questions.
- Time Limit: The total time allocated for the test is usually 90 minutes.
- Passing Score: The passing score for the test varies- but it is generally set around 65% or higher.
- test Format: The test is usually conducted in a proctored environment- either in-person or online.
Course Outline:
The Salesforce Certified JavaScript Developer I course covers the following key areas:
1. Introduction to JavaScript:
- JavaScript basics- syntax- and data types
- Variables- operators- and control structures
- Functions- arrays- and objects in JavaScript
- Working with DOM (Document Object Model)
- Handling events and event-driven programming
2. JavaScript in Salesforce:
- Overview of JavaScript in the Salesforce platform
- JavaScript buttons and links in Salesforce
- Customizing page layouts using JavaScript
- Client-side validation and form manipulation
- Working with Visualforce pages and components
3. Advanced JavaScript Concepts:
- Error handling and debugging techniques
- Asynchronous programming with JavaScript (promises- async/await)
- Manipulating JSON data and working with APIs
- JavaScript frameworks and libraries (e.g.- jQuery- Angular- React)
- Performance optimization and best practices
4. Security and Governance:
- JavaScript security considerations
- Preventing common vulnerabilities (e.g.- Cross-Site Scripting)
- Accessing Salesforce data securely with JavaScript
- Implementing security policies and practices
Exam Objectives:
The objectives of the Javascript-Developer-I test are to assess the candidate's understanding of the following:
1. JavaScript fundamentals and syntax.
2. JavaScript usage in the Salesforce platform.
3. Advanced JavaScript concepts and techniques.
4. JavaScript security considerations.
5. Best practices for JavaScript development in Salesforce.
Exam Syllabus:
The test syllabus for Javascript-Developer-I includes the following topics:
1. Introduction to JavaScript
2. JavaScript in Salesforce
3. Advanced JavaScript Concepts
4. Security and Governance
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Javascript-Developer-I PDF MCQs 
| PDF Questions and Answers | : 1518 (Complete Set) |
| File Format | |
| Latest Update | : March 17, 2026 |
| Files Delivery | : Instant (5 to 10 min.) |
| Compatibility | : All Desktop and Mobile Devices |
| Delivery Method | : download Account |
| Sample Download | : Javascript-Developer-I test PDF |
|
Becoming a proficient developer in the Salesforce ecosystem requires a deep understanding of core JavaScript, and the Salesforce Certified JavaScript Developer I test is designed to validate exactly that. This certification is unique because it focuses primarily on platform-agnostic JavaScript skills that are essential for building modern web applications, including those using Lightning Web Components. Candidates are expected to master a wide range of topics, such as variable scoping with let and const, type coercion, and complex data manipulation using array methods like map and filter. Beyond basic syntax, the test delves into sophisticated concepts like prototypal inheritance, the execution context of arrow functions, and the intricacies of the event loop. Mastering the Document Object Model (DOM) and browser-specific APIs is also vital, as these form the foundation for creating interactive and high-performance user interfaces.
| Number | Section | Weight |
|---|---|---|
| 01 | Variables, Types, and Collections | 23% |
| 02 | Objects, Functions, and Classes | 25% |
| 03 | Browser and Events | 17% |
| 04 | Debugging and Error Handling | 07% |
| 05 | Asynchronous Programming | 13% |
| 06 | Server-Side JavaScript | 08% |
| 07 | Testing | 07% |
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By using our Javascript-Developer-I test PDF and Test Engine, you can practice with a structured set of questions and answers that are representative of the kinds of items you encounter on the exam. Wherever possible, content includes detailed explanations to clarify reasoning and support deeper learning. Success in this test is not just about memorizing facts; it is about demonstrating practical problem-solving abilities through 60 multiple-choice or multiple-select questions. You are given 105 minutes to complete the test, and a passing score of 65% is required to earn the credential. Official Salesforce guidelines strongly recommend a blend of hands-on experience and theoretical study, particularly focusing on the two highest-weighted domains which account for nearly half of the total score. One key strategy is to pay close attention to the nuances of asynchronous programming, such as handling Promises and using async/await syntax correctly. Additionally, you should familiarize yourself with Node.js fundamentals and various testing patterns, as these are increasingly important in professional development workflows. Since there are also up to five non-scored pretest questions included, maintaining a steady pace throughout the session is essential to ensure you have enough time to review your answers.
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| Desktop Test Engine Questions | : 1518 |
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