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Reference: https://trailheadacademy.salesforce.com/certificate/exam-javascript-dev---JS-Dev-101
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Salesforce JavaScript-Developer-I日本語 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Testing | 7% | - Writing and modifying unit tests - Test effectiveness evaluation - Unit testing concepts - Test coverage and reliability |
| Server Side JavaScript | 8% | - CLI commands - Core Node.js modules - Server-side JavaScript implementations - Package management (npm) - Node.js fundamentals |
| Browser and Events | 17% | - Browser-specific APIs - Browser Developer Tools usage - Interacting with forms and user input - Event propagation (bubbling and capturing) - DOM manipulation - Event handling and listeners |
| Objects, Functions, and Classes | 25% | - Prototypal inheritance - Object creation and manipulation - Execution flow and context - Higher-order functions - Arrow functions - Modules and decorators - Variable scope and closures - Function declarations and expressions - ES6 classes and inheritance |
| Asynchronous Programming | 13% | - Async/Await syntax - Asynchronous patterns for business requirements - Callbacks - Promises (creation, chaining, error handling) - Event loop and execution flow |
| Variables, Types, and Collections | 23% | - Truthy and falsy evaluations - Strings, numbers, and dates - Primitive and complex data types - Variable declarations and initialization - Arrays and collections - Type coercion and conversion - JSON parsing and manipulation |
| Debugging and Error Handling | 7% | - Custom error types - Error handling techniques (try/catch/finally) - Console methods for debugging - Breakpoints and code inspection |
