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Salesforce JavaScript-Developer-I valid dump torrent : Salesforce Certified JavaScript Developer (JS-Dev-101)
- Exam Code: JavaScript-Developer-I
- Exam Name: Salesforce Certified JavaScript Developer (JS-Dev-101)
- Updated: Oct 02, 2026
- Q&As: 149 Questions and Answers
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Salesforce JavaScript-Developer-I exam is one of the most sought-after certifications in the Salesforce ecosystem. As a Salesforce Certified JavaScript Developer I, a professional can demonstrate their expertise in building custom applications on the Salesforce platform using JavaScript. Salesforce Certified JavaScript Developer (JS-Dev-101) certification is designed for developers who possess a deep understanding of JavaScript and its related technologies.
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Salesforce JavaScript-Developer-I certification exam is a multiple-choice exam that consists of 60 questions. Candidates have 105 minutes to complete the exam, and they must achieve a passing score of 68% to earn the certification. JavaScript-Developer-I exam can be taken online or in person at a testing center.
Reference: https://trailheadacademy.salesforce.com/certificate/exam-javascript-dev---JS-Dev-101
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Salesforce JavaScript-Developer-I Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Debugging and Error Handling | 7% | - Console methods and logging - Defensive programming practices - Debugging tools and breakpoints - Error types and exception handling |
| Topic 2: Browsers and Events | 17% | - Browser APIs and Web Storage - Window and document object properties - Document Object Model (DOM) manipulation - Script loading and execution order - Event handling, propagation, and delegation |
| Topic 3: Variables, Types, and Collections | 23% | - JSON parsing and usage - Type coercion and conversion rules - Truthy and falsy values - Variable declaration and initialization - Working with strings, numbers, dates, and booleans - Array methods and data manipulation |
| Topic 4: Objects, Functions, and Classes | 25% | - Object creation, properties, and methods - Modules and imports/exports - Function definitions, parameters, and scope - Decorators and advanced function patterns - Class syntax, inheritance, and prototypes - Closures and execution context |
| Topic 5: Server-Side JavaScript | 8% | - Module system and require/import - Core Node.js modules - Node.js fundamentals and runtime - Command-line tools and scripts |
| Topic 6: Asynchronous Programming | 13% | - Async/await syntax - Promises and chaining - Event loop and micro/macro tasks - Callbacks and callback hell - Fetch API and HTTP requests |
| Topic 7: Testing | 7% | - Code coverage and best practices - Testing frameworks and assertions - Unit testing concepts - Test doubles and mocks |
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