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The credential Salesforce Accredited JavaScript Developer I is meant for applicants who build JavaScript applications for the web stack on the front-end and/or back-end.This validates both key JavaScript expertise and functional skills for applicants, for example, Lightning Components Platform, and Lightning Web Component technology relevant to JavaScript. Lightning web elements are personalised HTML elements that are designed with traditional HTML and modern JavaScript.
The Salesforce JavaScript Developer I certification requires two parts: the multiple-choice test given by the JavaScript Developer I and the Superbadge Lightning Web Components. In any order, all these credentials can be accessed. A Salesforce Certified Javascript Developer I certification is immediately obtained by adding these two certificates. The qualification applicant for Salesforce JavaScript Accredited Developer I will use the JavaScript language to build front-end or back-end software in one or more frameworks. The applicant will plan, build and evaluate effective , safe and reusable solutions.
The candidate can use JavaScript-specific programming style patterns and can use CSS , HTML, and other languages for integrating JavaScript. With Lightning Web Components, any JavaScript developer can build on Salesforce easily. This means that millions of JavaScript developers around the world will code on Salesforce without learning anything new. Developers can create and deploy brand-new fast apps on Salesforce using the current Lightning Platform development services portfolio and the modern JavaScript language. Salesforce JavaScript Developer I Certificate from Salesforce is designed to help Salesforce partners, customers and employees working on JavaScript as well as the Lightning Component Platform, know-how and knowledge and creation of Lightning web components (LWC's).
Reference: https://trailheadacademy.salesforce.com/certificate/exam-javascript-dev---JS-Dev-101
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| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Testing | 7% | - Unit testing concepts - Test coverage and reliability - Test effectiveness evaluation - Writing and modifying unit tests |
| Topic 2: Asynchronous Programming | 13% | - Asynchronous patterns for business requirements - Async/Await syntax - Promises (creation, chaining, error handling) - Callbacks - Event loop and execution flow |
| Topic 3: Server Side JavaScript | 8% | - CLI commands - Node.js fundamentals - Core Node.js modules - Package management (npm) - Server-side JavaScript implementations |
| Topic 4: Debugging and Error Handling | 7% | - Custom error types - Console methods for debugging - Error handling techniques (try/catch/finally) - Breakpoints and code inspection |
| Topic 5: Variables, Types, and Collections | 23% | - Primitive and complex data types - Arrays and collections - JSON parsing and manipulation - Variable declarations and initialization - Strings, numbers, and dates - Truthy and falsy evaluations - Type coercion and conversion |
| Topic 6: Browser and Events | 17% | - Interacting with forms and user input - DOM manipulation - Browser Developer Tools usage - Event propagation (bubbling and capturing) - Event handling and listeners - Browser-specific APIs |
| Topic 7: Objects, Functions, and Classes | 25% | - Modules and decorators - Higher-order functions - Variable scope and closures - Arrow functions - Object creation and manipulation - Function declarations and expressions - ES6 classes and inheritance - Prototypal inheritance - Execution flow and context |
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