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The best study material one can get is the JavaScript-Developer-I practice exam dumps. To ensure good grades, do attempt the JavaScript-Developer-I practice exams. The JavaScript Developer I from Salesforce typically has 1-2 years of experience as a JavaScript developer with the following JavaScript topics.
Strings
Asynchronous Programming
Discharge
Monitor (agnostic platform)
Activities
Control of Mistake
Modules
Forms of data and operators
Objects & Arrays: Data Structures
JavaScript on the backend
Scope of Variables
Conversion type (inclusive versus explicit)
Classes
Item Model Document
Functions (more functions in higher order)
To prepare for this test, we advise a combination of practical experience, completion of training courses, pathways and self-study in the areas listed in the examination outline section of this examination guide.
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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Salesforce JavaScript-Developer-I Certification leaning site Salesforce JavaScript-Developer-Is Certification resources
| Section | Weight | Objectives |
|---|---|---|
| Variables, Types, and Collections | 23% | - Variable declarations and initialization - Strings, numbers, and dates - Arrays and collections - Truthy and falsy evaluations - Primitive and complex data types - JSON parsing and manipulation - Type coercion and conversion |
| Testing | 7% | - Test effectiveness evaluation - Unit testing concepts - Writing and modifying unit tests - Test coverage and reliability |
| Debugging and Error Handling | 7% | - Console methods for debugging - Breakpoints and code inspection - Error handling techniques (try/catch/finally) - Custom error types |
| Server Side JavaScript | 8% | - Node.js fundamentals - Server-side JavaScript implementations - Package management (npm) - CLI commands - Core Node.js modules |
| Objects, Functions, and Classes | 25% | - Function declarations and expressions - Execution flow and context - Object creation and manipulation - Variable scope and closures - Modules and decorators - Arrow functions - ES6 classes and inheritance - Prototypal inheritance - Higher-order functions |
| Asynchronous Programming | 13% | - Async/Await syntax - Callbacks - Event loop and execution flow - Asynchronous patterns for business requirements - Promises (creation, chaining, error handling) |
| Browser and Events | 17% | - Browser Developer Tools usage - Browser-specific APIs - DOM manipulation - Interacting with forms and user input - Event propagation (bubbling and capturing) - Event handling and listeners |
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