What is the duration, language, and format of Salesforce JavaScript-Developer-I Exam
- Passing score 65%
- The type of questions is Multiple Choice and situation-based questions.
- There is a time limit of 105 minutes for the exam.
- This exam is offered in only English.
- This exam consists of 60 questions
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
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Benefits in Obtaining Salesforce JavaScript-Developer-I Certification
With the introduction of the Lightning Experience by Salesforce, it is possible to develop cool, looking applications for a wide range of tasks. Admins have been able to create beautiful pages for their objects more than ever, with an interface entirely tailored for each user.For developers, the same application has never before been possible for Salesforce developers to create applications that stretch well beyond Salesforce's declarative features. It's all achieved with the use of a JavaScript application for Lightning & Lightning Web components.
The certification for JavaScript Developer I has just been released and fills a large gap in the certification list for Salesforce. Salesforce Developers who want to prove their Lightning skills, but also new entrants into the Salesforce community, are certified to demonstrate that they know what is relevant. A typical Salesforce 60 multi-choice test is split into two parts and is influenced by a super badge (Similar to Developer II certification).
Average Salary for Salesforce JavaScript-Developer-I Exam Certified Professional
Salesforce JavaScript Developer roles are in great demand nowadays. The average salaries of Salesforce JavaScript Developer I exam Certified professional in:
- Europe - 63,500 Euro
- United State - 129,630 USD
- England - 60,200 POUND
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: Browsers and Events | 17% | - Document Object Model (DOM) manipulation - Browser APIs and Web Storage - Event handling, propagation, and delegation - Script loading and execution order - Window and document object properties |
| Topic 2: Asynchronous Programming | 13% | - Event loop and micro/macro tasks - Fetch API and HTTP requests - Promises and chaining - Async/await syntax - Callbacks and callback hell |
| Topic 3: Testing | 7% | - Testing frameworks and assertions - Test doubles and mocks - Code coverage and best practices - Unit testing concepts |
| Topic 4: Debugging and Error Handling | 7% | - Defensive programming practices - Console methods and logging - Error types and exception handling - Debugging tools and breakpoints |
| Topic 5: Variables, Types, and Collections | 23% | - JSON parsing and usage - Array methods and data manipulation - Working with strings, numbers, dates, and booleans - Truthy and falsy values - Variable declaration and initialization - Type coercion and conversion rules |
| Topic 6: Server-Side JavaScript | 8% | - Module system and require/import - Core Node.js modules - Node.js fundamentals and runtime - Command-line tools and scripts |
| Topic 7: Objects, Functions, and Classes | 25% | - Object creation, properties, and methods - Decorators and advanced function patterns - Modules and imports/exports - Closures and execution context - Function definitions, parameters, and scope - Class syntax, inheritance, and prototypes |






