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Salesforce Exam Salesforce Certified JavaScript Developer (JS-Dev-101) Topic 4 Question 97 Discussion

Actual exam question for Salesforce's Salesforce Certified JavaScript Developer (JS-Dev-101) exam
Question #: 97
Topic #: 4
[All Salesforce Certified JavaScript Developer (JS-Dev-101) Questions]

Refer to the code snippet:

Function getAvailabilityMessage(item) {

If (getAvailability(item)){

Var msg =''Username available'';

}

Return msg;

}

A developer writes this code to return a message to user attempting to register a new

username. If the username is available, variable.

What is the return value of msg hen getAvailabilityMessage (''newUserName'' ) is

executed and getAvailability(''newUserName'') returns false?

Show Suggested Answer Hide Answer
Suggested Answer: A

by Ryan at Jan 11, 2025, 03:12 PM

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Mabel
1 day ago
Totally agree, msg won't be set if the username isn't available.
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Crissy
7 days ago
The function returns undefined if the condition isn't met.
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Antonette
13 days ago
I believe it just returns undefined since msg is only defined inside the if block.
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Christoper
18 days ago
I'm not entirely sure, but I feel like it could also be an error about msg not being defined if it never gets assigned.
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Timothy
24 days ago
I remember a similar question where a variable wasn't initialized, and it returned undefined too.
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Mendy
30 days ago
I think if getAvailability returns false, then msg wouldn't be set, so it might be undefined?
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Willow
30 days ago
Hmm, this is a tricky one. Let me walk through it step-by-step. The function checks if the username is available, and if so, sets the message to "Username available". But if the username is not available, the function doesn't set the message to anything else. So I think the return value will be "undefined".
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Delisa
30 days ago
Wait, I'm a bit confused. If getAvailability(item) returns false, then the if statement won't execute, and the variable msg won't be set to anything. So the return value should be "msg is not defined".
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Dorothea
30 days ago
Okay, I think I've got this. The function checks if the username is available, and if so, sets the message to "Username available". But if the username is not available, the function doesn't set the message to anything. So the return value will be "undefined".
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Evette
1 month ago
Hmm, this one seems a bit tricky. Let me think it through step-by-step. The function checks if the username is available, and if so, sets the message to "Username available". But if the username is not available, the function doesn't seem to set the message to anything else. So I'm guessing the return value will be undefined.
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Tammy
6 months ago
Ah, the joys of programming! Where a simple forgotten line of code can turn a 'Username available' message into a big ol' 'undefined'. Gotta love it!
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Jeanice
5 months ago
C) ''Msg is not defined''
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Vernell
6 months ago
C) ''Msg is not defined''
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Krissy
6 months ago
B) ''newUserName''
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Denny
6 months ago
B) ''newUserName''
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Elli
6 months ago
A) ''Username available''
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Dortha
6 months ago
A) ''Username available''
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Ilene
6 months ago
Hah! Looks like the developer forgot to handle the case where the username is not available. I bet they're feeling a bit 'unavailable' right now.
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Scarlet
7 months ago
The code snippet is missing a crucial step. It should have checked the value of getAvailability('newUserName') and then assigned the appropriate message to the msg variable before returning it.
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Bettina
6 months ago
Yes, the code is missing a step to check the availability of the username before returning a message.
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Ressie
6 months ago
D) undefined
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Aron
6 months ago
The code snippet needs to be updated to check the value of getAvailability('newUserName') before assigning the message to the msg variable.
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Jerry
6 months ago
A) ''Username available''
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Vanda
7 months ago
If getAvailability('newUserName') returns false, then the if condition will not be true, and the variable msg will not be assigned a value. Therefore, the return value will be undefined.
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Kiley
7 months ago
I'm not sure, but I think the answer might be C) 'Msg is not defined'.
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Alisha
7 months ago
I agree with Hoa, because if getAvailability returns false, msg won't be defined.
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Hoa
7 months ago
I think the answer is D) undefined.
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