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Reference: https://trailheadacademy.salesforce.com/certificate/exam-javascript-dev---JS-Dev-101
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:
- Web application developer
- Technical Project Manager
- Software/backend developer
- Salesforce developer
- Full stack developer
- Front end developer
- Technical Product Manager
- Support engineer
- UI/UX Engineer
- JavaScript programmer
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Salesforce JavaScript-Developer-I Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Asynchronous Programming | 13% | - Fetch API and HTTP requests - Event loop and micro/macro tasks - Async/await syntax - Callbacks and callback hell - Promises and chaining |
| Topic 2: Debugging and Error Handling | 7% | - Console methods and logging - Error types and exception handling - Debugging tools and breakpoints - Defensive programming practices |
| Topic 3: Testing | 7% | - Testing frameworks and assertions - Unit testing concepts - Code coverage and best practices - Test doubles and mocks |
| Topic 4: Objects, Functions, and Classes | 25% | - Class syntax, inheritance, and prototypes - Object creation, properties, and methods - Decorators and advanced function patterns - Function definitions, parameters, and scope - Closures and execution context - Modules and imports/exports |
| Topic 5: Variables, Types, and Collections | 23% | - Array methods and data manipulation - Working with strings, numbers, dates, and booleans - JSON parsing and usage - Type coercion and conversion rules - Truthy and falsy values - Variable declaration and initialization |
| Topic 6: Browsers and Events | 17% | - Event handling, propagation, and delegation - Script loading and execution order - Browser APIs and Web Storage - Document Object Model (DOM) manipulation - Window and document object properties |
| Topic 7: Server-Side JavaScript | 8% | - Module system and require/import - Node.js fundamentals and runtime - Core Node.js modules - Command-line tools and scripts |
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