Free JS-Dev-101 Mock Exam – Practice Online Confidently

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Exam Code: JS-Dev-101
Exam Questions: 217
Salesforce Certified JavaScript Developer - Multiple Choice
Updated: 04 Jan, 2026
Question 1

The developer has a function that prints ''Hello'' to an input name. To test this, thedeveloper created a function that returns ''World''. However the following snippet does not print '' Hello World''.CaptureWhat can the developer do to change the code to print ''Hello World'' ?

Options :
Answer: B

Question 2

Teams at Universal Containers (UC) work on multiple JavaScript projects at the same time.UC is thinking about reusability and how each team can benefit from the work of others.Going open-source or public is not an option at this time.Which option is available to UC with npm?

Options :
Answer: A

Question 3

A developer is leading the creation of a new browser application that will serve a singlepage application. The team wants to use a new web framework Minimalsit.js. The Leaddeveloper wants to advocate for a more seasoned web framework that already has acommunity around it.Which two frameworks should the lead developer advocate for?Choose 2 answers

Options :
Answer: B,D

Question 4

Given two expressions var1 and var2. What are two valid ways to return the logical ANDof the two expressions and ensure it is data type Boolean ?Choose 2 answers:

Options :
Answer: A,D

Question 5

A developer receives a comment from the Tech Lead that the code given below haserror:const monthName = 'July';const year = 2019;if(year === 2019) {monthName = 'June';}Which line edit should be made to make this code run?

Options :
Answer: A

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