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Salesforce Certified JavaScript Developer I certification exam is a challenging assessment that evaluates a developer’s knowledge and skills in building custom applications using the Salesforce Lightning platform. JavaScript-Developer-I exam tests a developer’s ability to build custom user interfaces, create custom Lightning components, and use Apex and JavaScript to build custom logic and automation. Salesforce Certified JavaScript Developer (JS-Dev-101) certification is designed for developers who have experience with JavaScript, HTML, and CSS and are familiar with Salesforce’s Lightning Component framework.
Reference: https://trailheadacademy.salesforce.com/certificate/exam-javascript-dev---JS-Dev-101
For more info read reference:
Salesforce JavaScript-Developer-I Certification leaning site Salesforce JavaScript-Developer-Is Certification resources
Salesforce JavaScript-Developer-I exam is a certification for JavaScript developers who specialize in building custom applications on the Salesforce platform. JavaScript-Developer-I exam is designed to test a candidate's knowledge of JavaScript programming concepts, as well as their ability to develop custom applications using the Salesforce Lightning Platform.
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Salesforce JavaScript-Developer-I Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Server-Side JavaScript | 8% | - Command-line tools and scripts - Node.js fundamentals and runtime - Core Node.js modules - Module system and require/import |
| Debugging and Error Handling | 7% | - Console methods and logging - Defensive programming practices - Error types and exception handling - Debugging tools and breakpoints |
| Asynchronous Programming | 13% | - Fetch API and HTTP requests - Promises and chaining - Callbacks and callback hell - Event loop and micro/macro tasks - Async/await syntax |
| Testing | 7% | - Unit testing concepts - Testing frameworks and assertions - Test doubles and mocks - Code coverage and best practices |
| Objects, Functions, and Classes | 25% | - Function definitions, parameters, and scope - Modules and imports/exports - Object creation, properties, and methods - Decorators and advanced function patterns - Class syntax, inheritance, and prototypes - Closures and execution context |
| Browsers and Events | 17% | - Script loading and execution order - Document Object Model (DOM) manipulation - Browser APIs and Web Storage - Window and document object properties - Event handling, propagation, and delegation |
| Variables, Types, and Collections | 23% | - JSON parsing and usage - Variable declaration and initialization - Truthy and falsy values - Array methods and data manipulation - Type coercion and conversion rules - Working with strings, numbers, dates, and booleans |
