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Salesforce Certified JavaScript Developer I exam is a computer-based test that consists of 60 multiple-choice questions that the candidates need to complete within 105 minutes. JavaScript-Developer-I exam is designed to assess the candidate's understanding of the key aspects of JavaScript development on the Salesforce platform, including the architecture of Salesforce Lightning, the Apex programming language, and the use of Visualforce and other web technologies.
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Salesforce JavaScript-Developer-I Certification Exam is a highly respected certification in the Salesforce community. Salesforce Certified JavaScript Developer (JS-Dev-101) certification is an excellent way for developers to showcase their skills and expertise in Salesforce development, and it is recognized by employers as a valuable credential. Salesforce Certified JavaScript Developer (JS-Dev-101) certification is also a great way for developers to keep up with the latest trends and best practices in Salesforce development, as the exam is regularly updated to reflect changes in the platform.
Reference: https://trailheadacademy.salesforce.com/certificate/exam-javascript-dev---JS-Dev-101
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The Salesforce JavaScript-Developer-I exam includes multiple-choice questions that cover a range of topics related to JavaScript development on the Salesforce platform. These topics include data modeling, user interface development, debugging and testing, and security. JavaScript-Developer-I exam is designed to test the ability of developers to design and develop custom applications that meet the needs of their clients.
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Salesforce JavaScript-Developer-I Certification Exam is designed to test the knowledge and skills of developers who work with Salesforce and have expertise in JavaScript programming. JavaScript-Developer-I exam is ideal for developers who want to demonstrate their proficiency in using JavaScript to develop custom applications on the Salesforce platform. Salesforce Certified JavaScript Developer (JS-Dev-101) certification exam is created and managed by Salesforce, a leading customer relationship management (CRM) software provider.
Salesforce JavaScript-Developer-I Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Debugging and Error Handling | 7% | - Console methods and logging - Error types and exception handling - Debugging tools and breakpoints - Defensive programming practices |
| Variables, Types, and Collections | 23% | - Type coercion and conversion rules - Working with strings, numbers, dates, and booleans - Truthy and falsy values - Array methods and data manipulation - JSON parsing and usage - Variable declaration and initialization |
| Objects, Functions, and Classes | 25% | - Function definitions, parameters, and scope - Closures and execution context - Decorators and advanced function patterns - Modules and imports/exports - Class syntax, inheritance, and prototypes - Object creation, properties, and methods |
| Testing | 7% | - Test doubles and mocks - Code coverage and best practices - Testing frameworks and assertions - Unit testing concepts |
| Browsers and Events | 17% | - Document Object Model (DOM) manipulation - Window and document object properties - Script loading and execution order - Event handling, propagation, and delegation - Browser APIs and Web Storage |
| Server-Side JavaScript | 8% | - Module system and require/import - Command-line tools and scripts - Node.js fundamentals and runtime - Core Node.js modules |
| Asynchronous Programming | 13% | - Callbacks and callback hell - Event loop and micro/macro tasks - Fetch API and HTTP requests - Async/await syntax - Promises and chaining |
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