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Salesforce JS-Dev-101 - Salesforce Certified JavaScript Developer - Multiple Choice

Updated: Nov 08, 2026

Q & A: 149 Questions and Answers

JS-Dev-101 Braindumps VCE
  • Exam Code: JS-Dev-101
  • Exam Name: Salesforce Certified JavaScript Developer - Multiple Choice

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Salesforce Certified JavaScript Developer - Multiple Choice JS-Dev-101 exam vce dumps preparation

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Salesforce JS-Dev-101 Exam Syllabus Topics:

TopicDetails
Topic 1
  • Objects, Functions, and Classes: Covers function, object, and class implementations to meet business requirements, along with the use of modules, decorators, variable scope, and execution flow.
Topic 2
  • Testing: Covers evaluating unit test effectiveness against a block of code and modifying tests to improve their coverage and reliability.
Topic 3
  • Debugging and Error Handling: Covers proper error handling techniques and the use of the console and breakpoints to debug code.
Topic 4
  • Browser and Events: Covers DOM manipulation, event handling and propagation, browser-specific APIs, and using Browser Developer Tools to inspect code behavior.
Topic 5
  • Variables, Types, and Collections: Covers declaring and initializing variables, working with strings, numbers, dates, arrays, and JSON, along with understanding type coercion and truthy
  • falsy evaluations.

Reference: https://trailheadacademy.salesforce.com/certificate/exam-javascript-dev---JS-Dev-101

Salesforce Certified JavaScript Developer - Multiple Choice Sample Questions:

Question #1

A developer wants to advocate for a mature, well-supported web framework/library instead of a new one (Minimalist.js).
Which two should be recommended?

  • A. React
  • B. Vue
  • C. Koa
  • D. Express
Reveal Solution  Discussion  0

Correct Answer: A,B  🗳️

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Question #2

A developer publishes a new version of a package with new features that do not break backward compatibility. The previous version number was 1.1.3.
Following semantic versioning formats, what should the new package version number be?

  • A. 1.1.4
  • B. 2.0.0
  • C. 1.2.3
  • D. 1.2.0
Reveal Solution  Discussion  0

Correct Answer: D  🗳️

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Question #3

Which statement allows a developer to update the browser navigation history without a page refresh?

  • A. window.customHistory.pushState(newStateObject, '', null);
  • B. window.history.createState(newStateObject, '');
  • C. window.history.updateState(newStateObject, '');
  • D. window.history.pushState(newStateObject, '', null);
Reveal Solution  Discussion  0

Correct Answer: D  🗳️

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Question #4

Refer to the code below:
01 let o = {
02 get js() {
03 let city1 = String('St. Louis');
04 let city2 = String('New York');
05
06 return {
07 firstCity: city1.toLowerCase(),
08 secondCity: city2.toLowerCase(),
09 }
10 }
11 }
What value can a developer expect when referencing o.js.secondCity?

  • A. 'New York'
  • B. undefined
  • C. An error
  • D. 'new york'
Reveal Solution  Discussion  0

Correct Answer: D  🗳️

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Question #5

A developer is leading the creation of a new web server for their team that will fulfill API requests from an existing client. The team wants a web server that runs on Node.js, and they want to use the new web framework Minimalist.js. The lead developer wants to advocate for a more seasoned back-end framework that already has a community around it.
Which two frameworks could the lead developer advocate for?

  • A. Next
  • B. Angular
  • C. Gatsby
  • D. Next.js
Reveal Solution  Discussion  0

Correct Answer: A,D  🗳️

Explanation: Only visible for BraindumpsVCE members. You can sign-up / login (it's free).

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