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