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Salesforce JavaScript-Developer-I Exam With Confidence Using Practice Dumps

Exam Code:
JavaScript-Developer-I
Exam Name:
Salesforce Certified JavaScript Developer (JS-Dev-101)
Certification:
Vendor:
Questions:
219
Last Updated:
Jan 20, 2026
Exam Status:
Stable
Salesforce JavaScript-Developer-I

JavaScript-Developer-I: Salesforce Developer Exam 2025 Study Guide Pdf and Test Engine

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Salesforce Certified JavaScript Developer (JS-Dev-101) Questions and Answers

Question 1

A developer writes the code below to return a message to a user attempting to register a new username. If the username is available, a variable named nag is declared and assigned a value on line 03.

What is the value of msg when getAvailableabilityMessage (“newUserName”) is executed and get Availability (“newUserName”) returns true?

Options:

A.

"msg is not defined"

B.

"newUserName"

C.

"User-name available"

D.

undefined

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Question 2

Given the following code:

What is the output of line 02?

Options:

A.

"null"

B.

"x-

C.

"undefined" 0

D.

'object"

Question 3

Given the code below:

What is logged to the console'

Options:

A.

1 2 3 4 5

B.

1 2 5 3 4

C.

2 5 1 3 4

D.

2 5 3 4 1