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!
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Salesforce JavaScript-Developer-I Practice Q&A's
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For more info read reference:
Salesforce JavaScript-Developer-I Certification leaning site Salesforce JavaScript-Developer-Is Certification resources
Reference: https://trailheadacademy.salesforce.com/certificate/exam-javascript-dev---JS-Dev-101
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Average Salary for Salesforce JavaScript-Developer-I Exam Certified Professional
Salesforce JavaScript Developer roles are in great demand nowadays. The average salaries of Salesforce JavaScript Developer I exam Certified professional in:
- United State - 129,630 USD
- England - 60,200 POUND
- Europe - 63,500 Euro
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How much Salesforce JavaScript-Developer-I Exam Cost
The price of the Salesforce JavaScript Developer I certification is $200 USD, for more information related to the Salesforce JavaScript-Developer-I Exam please visit Salesforce website.
Salesforce JavaScript-Developer-I Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Objects, Functions, and Classes | 25% | - Modules and imports/exports - Closures and execution context - Class syntax, inheritance, and prototypes - Function definitions, parameters, and scope - Object creation, properties, and methods - Decorators and advanced function patterns |
| Server-Side JavaScript | 8% | - Node.js fundamentals and runtime - Core Node.js modules - Command-line tools and scripts - Module system and require/import |
| Variables, Types, and Collections | 23% | - Array methods and data manipulation - JSON parsing and usage - Truthy and falsy values - Variable declaration and initialization - Type coercion and conversion rules - Working with strings, numbers, dates, and booleans |
| Browsers and Events | 17% | - Document Object Model (DOM) manipulation - Event handling, propagation, and delegation - Browser APIs and Web Storage - Script loading and execution order - Window and document object properties |
| Asynchronous Programming | 13% | - Fetch API and HTTP requests - Callbacks and callback hell - Async/await syntax - Promises and chaining - Event loop and micro/macro tasks |
| Testing | 7% | - Unit testing concepts - Test doubles and mocks - Testing frameworks and assertions - Code coverage and best practices |
| Debugging and Error Handling | 7% | - Console methods and logging - Defensive programming practices - Debugging tools and breakpoints - Error types and exception handling |
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