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Reference: https://trailheadacademy.salesforce.com/certificate/exam-javascript-dev---JS-Dev-101
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| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Objects, Functions, and Classes | 25% | - Function declarations and expressions - Prototypal inheritance - Object creation and manipulation - Arrow functions - Variable scope and closures - Higher-order functions - Execution flow and context - ES6 classes and inheritance - Modules and decorators |
| Topic 2: Testing | 7% | - Writing and modifying unit tests - Unit testing concepts - Test coverage and reliability - Test effectiveness evaluation |
| Topic 3: Variables, Types, and Collections | 23% | - Variable declarations and initialization - Truthy and falsy evaluations - Primitive and complex data types - Type coercion and conversion - Arrays and collections - JSON parsing and manipulation - Strings, numbers, and dates |
| Topic 4: Debugging and Error Handling | 7% | - Breakpoints and code inspection - Custom error types - Console methods for debugging - Error handling techniques (try/catch/finally) |
| Topic 5: Asynchronous Programming | 13% | - Promises (creation, chaining, error handling) - Callbacks - Event loop and execution flow - Async/Await syntax - Asynchronous patterns for business requirements |
| Topic 6: Browser and Events | 17% | - Event handling and listeners - Browser-specific APIs - Interacting with forms and user input - Event propagation (bubbling and capturing) - Browser Developer Tools usage - DOM manipulation |
| Topic 7: Server Side JavaScript | 8% | - Core Node.js modules - Node.js fundamentals - Server-side JavaScript implementations - CLI commands - Package management (npm) |
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