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