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Salesforce Certified JavaScript Developer I (JS-Developer-I) Certification Exam is designed to evaluate the knowledge and skills of developers in building custom applications on the Salesforce platform using JavaScript. Salesforce Certified JavaScript Developer (JS-Dev-101) certification exam is intended for those developers who have a good understanding of JavaScript and its various frameworks and libraries. JavaScript-Developer-I exam is also useful for developers who want to enhance their skills and knowledge in building custom applications on the Salesforce platform.
Reference: https://trailheadacademy.salesforce.com/certificate/exam-javascript-dev---JS-Dev-101
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Salesforce is a cloud-based software that provides customer relationship management (CRM) and other business solutions. As a widely adopted CRM platform, Salesforce offers various certifications that enable professionals to demonstrate their skills in different areas of Salesforce. Among these certifications is the Salesforce Certified JavaScript Developer I, which focuses on JavaScript and its integration with Salesforce.
| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Objects, Functions, and Classes | 25% | - Object creation and manipulation - Function declarations and expressions - Variable scope and closures - Modules and decorators - Prototypal inheritance - Execution flow and context - Higher-order functions - Arrow functions - ES6 classes and inheritance |
| Topic 2: Asynchronous Programming | 13% | - Promises (creation, chaining, error handling) - Event loop and execution flow - Callbacks - Async/Await syntax - Asynchronous patterns for business requirements |
| Topic 3: Testing | 7% | - Test effectiveness evaluation - Test coverage and reliability - Unit testing concepts - Writing and modifying unit tests |
| Topic 4: Debugging and Error Handling | 7% | - Custom error types - Error handling techniques (try/catch/finally) - Breakpoints and code inspection - Console methods for debugging |
| Topic 5: Variables, Types, and Collections | 23% | - Primitive and complex data types - Variable declarations and initialization - JSON parsing and manipulation - Arrays and collections - Truthy and falsy evaluations - Type coercion and conversion - Strings, numbers, and dates |
| Topic 6: Server Side JavaScript | 8% | - Package management (npm) - Core Node.js modules - CLI commands - Server-side JavaScript implementations - Node.js fundamentals |
| Topic 7: Browser and Events | 17% | - Browser-specific APIs - DOM manipulation - Interacting with forms and user input - Event handling and listeners - Event propagation (bubbling and capturing) - Browser Developer Tools usage |
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