Instantly download JavaScript-Developer-I updated real questions
Pass your actual test at first attempt with Salesforce JavaScript-Developer-I training material
Last Updated: Sep 07, 2026
No. of Questions: 149 Questions & Answers with Testing Engine
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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.
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:
- Europe - 63,500 Euro
- England - 60,200 POUND
- United State - 129,630 USD
Salesforce JavaScript-Developer-I Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Browser and Events | 17% | - Event propagation (bubbling and capturing) - Browser-specific APIs - Interacting with forms and user input - Event handling and listeners - Browser Developer Tools usage - DOM manipulation |
| Testing | 7% | - Unit testing concepts - Test effectiveness evaluation - Test coverage and reliability - Writing and modifying unit tests |
| Debugging and Error Handling | 7% | - Console methods for debugging - Custom error types - Error handling techniques (try/catch/finally) - Breakpoints and code inspection |
| Variables, Types, and Collections | 23% | - Truthy and falsy evaluations - Type coercion and conversion - Strings, numbers, and dates - Arrays and collections - Variable declarations and initialization - JSON parsing and manipulation - Primitive and complex data types |
| Objects, Functions, and Classes | 25% | - Execution flow and context - ES6 classes and inheritance - Prototypal inheritance - Arrow functions - Modules and decorators - Higher-order functions - Function declarations and expressions - Variable scope and closures - Object creation and manipulation |
| Server Side JavaScript | 8% | - Package management (npm) - CLI commands - Core Node.js modules - Server-side JavaScript implementations - Node.js fundamentals |
| Asynchronous Programming | 13% | - Event loop and execution flow - Promises (creation, chaining, error handling) - Callbacks - Asynchronous patterns for business requirements - Async/Await syntax |
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