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Topics of Salesforce JavaScript Developer I Exam
Aspirants must know the exam topics before they start of preparation. Because it will help them to prepare for the below concepts Salesforce JavaScript-Developer-I exam will include the following topics:
1. Variable, Types, and Collection: 23%
Scenario based coding Variables Creation and Initialization JSON object understanding
2. Object, Functions, and Classes: 25%
Implementation of different functions Understanding of different modules of Javascript Scope of variables and their execution flow
3. Browser and Events: 17%
Handling and propagation of events Development tools of browsers Understanding of browser specific APIs
4. Asynchronous Programming: 13%
Asynchrounous programming different concepts Monitoring and management of different loops
5. Server Side Javascript: 8%
Implementation of Node.js Understanding of Node.js CLI commands
6. Testing: 7%
Unit Testing effectiveness of different tests
Reference: https://trailheadacademy.salesforce.com/certificate/exam-javascript-dev---JS-Dev-101
Salesforce JavaScript Developer I Certification Path
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Salesforce JavaScript-Developer-I日本語 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Debugging and Error Handling | 7% | - Breakpoints and code inspection - Error handling techniques (try/catch/finally) - Console methods for debugging - Custom error types |
| Objects, Functions, and Classes | 25% | - ES6 classes and inheritance - Modules and decorators - Function declarations and expressions - Variable scope and closures - Higher-order functions - Object creation and manipulation - Execution flow and context - Arrow functions - Prototypal inheritance |
| Asynchronous Programming | 13% | - Asynchronous patterns for business requirements - Async/Await syntax - Event loop and execution flow - Promises (creation, chaining, error handling) - Callbacks |
| Testing | 7% | - Test effectiveness evaluation - Writing and modifying unit tests - Test coverage and reliability - Unit testing concepts |
| Browser and Events | 17% | - Interacting with forms and user input - Browser Developer Tools usage - Event handling and listeners - Browser-specific APIs - DOM manipulation - Event propagation (bubbling and capturing) |
| Variables, Types, and Collections | 23% | - Arrays and collections - Type coercion and conversion - Truthy and falsy evaluations - Strings, numbers, and dates - Variable declarations and initialization - Primitive and complex data types - JSON parsing and manipulation |
| Server Side JavaScript | 8% | - Package management (npm) - Node.js fundamentals - Core Node.js modules - CLI commands - Server-side JavaScript implementations |
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