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

"Salesforce Certified JavaScript Developer - Multiple Choice", also known as JS-Dev-101 exam, is a Salesforce Certification. With the complete collection of questions and answers, PrepPDF has assembled to take you through 149 Q&As to your JS-Dev-101 Exam preparation. In the JS-Dev-101 exam resources, you will cover every field and category in Salesforce Developers Certification helping to ready you for your successful Salesforce Certification.

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  • Exam Code: JS-Dev-101
  • Exam Name: Salesforce Certified JavaScript Developer - Multiple Choice
  • Certification Provider: Salesforce
  • Corresponding Certification: Salesforce Developers
  • Updated: Jul 11, 2026
  • No. of Questions: 149 Questions & Answers with Testing Engine
  • Download Limit: Unlimited

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Salesforce JS-Dev-101 Exam Syllabus Topics:

TopicDetails
Topic 1
  • Testing: Covers evaluating unit test effectiveness against a block of code and modifying tests to improve their coverage and reliability.
Topic 2
  • Debugging and Error Handling: Covers proper error handling techniques and the use of the console and breakpoints to debug code.
Topic 3
  • 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.
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
  • Asynchronous Programming: Covers asynchronous programming concepts and understanding how the event loop controls execution flow and determines outcomes.

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

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