Salesforce JavaScript-Developer-I Q&A - in .pdf

  • JavaScript-Developer-I pdf
  • Exam Code: JavaScript-Developer-I
  • Exam Name: Salesforce Certified JavaScript Developer (JS-Dev-101)
  • Updated: Jul 25, 2026
  • Q & A: 149 Questions and Answers
  • Convenient, easy to study.
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  • Exam Code: JavaScript-Developer-I
  • Exam Name: Salesforce Certified JavaScript Developer (JS-Dev-101)
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  • Updated: Jul 25, 2026
  • Q & A: 149 Questions and Answers
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Salesforce JavaScript-Developer-I Q&A - Testing Engine

  • JavaScript-Developer-I Testing Engine
  • Exam Code: JavaScript-Developer-I
  • Exam Name: Salesforce Certified JavaScript Developer (JS-Dev-101)
  • Updated: Jul 25, 2026
  • Q & A: 149 Questions and Answers
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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

As the fierce competition of job market, it is essential to know how to improve your skills in order to get the job you want. If you stand still and refuse to make progress you will be eliminated by society. So to keep up with the rapid pace of modern society, it is necessary to develop more skills and get professional certificates, such as: Salesforce Certified JavaScript Developer (JS-Dev-101) certification. As one of influential test of Salesforce, Salesforce Certified JavaScript Developer (JS-Dev-101) test enjoys more popularity among IT workers and it proves that you have professional knowledge and technology in the IT field. You may wonder it will be a tough work to pass such difficult test. Now let DumpsTorrent help you. We have professional Salesforce Certified JavaScript Developer (JS-Dev-101) dumps torrent and Salesforce Certified JavaScript Developer (JS-Dev-101) latest dumps for you, which ensure you get a high score in test.

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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:

SectionWeightObjectives
Topic 1: Browsers and Events17%- 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 Programming13%- Event loop and micro/macro tasks
- Fetch API and HTTP requests
- Promises and chaining
- Async/await syntax
- Callbacks and callback hell
Topic 3: Testing7%- Testing frameworks and assertions
- Test doubles and mocks
- Code coverage and best practices
- Unit testing concepts
Topic 4: Debugging and Error Handling7%- Defensive programming practices
- Console methods and logging
- Error types and exception handling
- Debugging tools and breakpoints
Topic 5: Variables, Types, and Collections23%- 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 JavaScript8%- Module system and require/import
- Core Node.js modules
- Node.js fundamentals and runtime
- Command-line tools and scripts
Topic 7: Objects, Functions, and Classes25%- 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
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