PDF Version DemoHow to Prepare for Salesforce JavaScript Developer I Exam
Preparation Guide for Salesforce JavaScript Developer I Exam
Introduction
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Who should take the Salesforce JavaScript-Developer-I Exam
This course is designed for Javascript developers starting on the Salesforce platform who require programming customizations on front-end and back-end. There are no prerequisites for Salesforce JavaScript Developer I Exam. Typical job roles that align to the Salesforce Certified JavaScript Developer I are as follows:
- UI/UX Engineer
- Front end developer
- Technical Project Manager
- JavaScript programmer
- Full stack developer
- Support engineer
- Software/backend developer
- Salesforce developer
- Web application developer
- Technical Product Manager
Reference: https://trailheadacademy.salesforce.com/certificate/exam-javascript-dev---JS-Dev-101
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Topics of Salesforce JavaScript Developer I Exam
Aspirants must know the exam topics before they start of preparation. Because it will help them to prepare for the below concepts Salesforce JavaScript-Developer-I exam will include the following topics:
1. Variable, Types, and Collection: 23%
Scenario based coding Variables Creation and Initialization JSON object understanding
2. Object, Functions, and Classes: 25%
Implementation of different functions Understanding of different modules of Javascript Scope of variables and their execution flow
3. Browser and Events: 17%
Handling and propagation of events Development tools of browsers Understanding of browser specific APIs
4. Asynchronous Programming: 13%
Asynchrounous programming different concepts Monitoring and management of different loops
5. Server Side Javascript: 8%
Implementation of Node.js Understanding of Node.js CLI commands
6. Testing: 7%
Unit Testing effectiveness of different tests
Salesforce JavaScript-Developer-I日本語 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Asynchronous Programming | 13% | - Promises and chaining - Event loop and micro/macro tasks - Callbacks and callback hell - Fetch API and HTTP requests - Async/await syntax |
| Objects, Functions, and Classes | 25% | - Decorators and advanced function patterns - Class syntax, inheritance, and prototypes - Closures and execution context - Modules and imports/exports - Object creation, properties, and methods - Function definitions, parameters, and scope |
| Testing | 7% | - Unit testing concepts - Code coverage and best practices - Testing frameworks and assertions - Test doubles and mocks |
| Variables, Types, and Collections | 23% | - Type coercion and conversion rules - JSON parsing and usage - Array methods and data manipulation - Working with strings, numbers, dates, and booleans - Truthy and falsy values - Variable declaration and initialization |
| Debugging and Error Handling | 7% | - Debugging tools and breakpoints - Error types and exception handling - Defensive programming practices - Console methods and logging |
| Browsers and Events | 17% | - Event handling, propagation, and delegation - Script loading and execution order - Window and document object properties - Document Object Model (DOM) manipulation - Browser APIs and Web Storage |
| Server-Side JavaScript | 8% | - Command-line tools and scripts - Core Node.js modules - Module system and require/import - Node.js fundamentals and runtime |
