Passing exam with JavaScript-Developer-I latest training materials
Prepare and pass exam with our Salesforce JavaScript-Developer-I training material, here you will achieve your dream easily With TrainingQuiz!
Last Updated: Jul 25, 2026
No. of Questions: 149 Questions & Answers with Testing Engine
Download Limit: Unlimited
The professional and accurate JavaScript-Developer-I Training Materials with the best precise contents is helping canidates pass for sure!
Pass your exam with latest TrainingQuiz JavaScript-Developer-I Training Materials just one-shot. All the core contents of Salesforce JavaScript-Developer-I exam trianing material are helpful and easy to understand, compiled and edited by the experienced experts team, which can assist you to face the difficulties with good mood and master the key knowledge easily, and then pass the Salesforce JavaScript-Developer-I exam for sure.
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Salesforce JavaScript-Developer-I Practice Q&A's
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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).
What is the duration, language, and format of Salesforce JavaScript-Developer-I Exam
- This exam is offered in only English.
- This exam consists of 60 questions
- There is a time limit of 105 minutes for the exam.
- Passing score 65%
- The type of questions is Multiple Choice and situation-based questions.
Reference: https://trailheadacademy.salesforce.com/certificate/exam-javascript-dev---JS-Dev-101
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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:
- UI/UX Engineer
- JavaScript programmer
- Full stack developer
- Front end developer
- Technical Product Manager
- Technical Project Manager
- Web application developer
- Support engineer
- Software/backend developer
- Salesforce developer
Are you still looking for a job? Have you been rejected by interviewers for many times? Maybe you are in a difficult time now. It does not matter. Our JavaScript-Developer-I training material will help you get through the difficulties by passing exam and obtain a useful certification. Up to now, our JavaScript-Developer-I actual test practice material has helped many people find a desirable job. Nowadays, the most necessary core knowledge can be learned through our JavaScript-Developer-I exam quiz. As we all know, no one can be relied on except you. If you abandon you yourself, nothing can help you out. If you truly want to change your current condition, our JavaScript-Developer-I training material will be your good helper. Only by struggling can you move forward.
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Salesforce JavaScript-Developer-I Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Objects, Functions, and Classes | 25% | - ES6 classes and inheritance - Higher-order functions - Modules and decorators - Arrow functions - Variable scope and closures - Prototypal inheritance - Execution flow and context - Object creation and manipulation - Function declarations and expressions |
| Topic 2: Browser and Events | 17% | - Browser-specific APIs - Event handling and listeners - Interacting with forms and user input - Event propagation (bubbling and capturing) - DOM manipulation - Browser Developer Tools usage |
| Topic 3: Variables, Types, and Collections | 23% | - Strings, numbers, and dates - Primitive and complex data types - Arrays and collections - Truthy and falsy evaluations - Type coercion and conversion - Variable declarations and initialization - JSON parsing and manipulation |
| Topic 4: Asynchronous Programming | 13% | - Asynchronous patterns for business requirements - Promises (creation, chaining, error handling) - Event loop and execution flow - Callbacks - Async/Await syntax |
| Topic 5: Testing | 7% | - Unit testing concepts - Test effectiveness evaluation - Test coverage and reliability - Writing and modifying unit tests |
| Topic 6: Debugging and Error Handling | 7% | - Console methods for debugging - Custom error types - Breakpoints and code inspection - Error handling techniques (try/catch/finally) |
| Topic 7: Server Side JavaScript | 8% | - CLI commands - Package management (npm) - Server-side JavaScript implementations - Node.js fundamentals - Core Node.js modules |
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