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A developer writes the code below to return a message to a user attempting to...

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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?

A.

"msg is not defined"

B.

"newUserName"

C.

"User-name available"

D.

undefined

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Refer to the code snippet:Function getAvailabilityMessage(item) {If (getAvailability(item)){Var msg =”Username available”;}Return msg;}A developer writes this...
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