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Salesforce Exam Javascript Developer I Topic 5 Question 76 Discussion

Actual exam question for Salesforce's Javascript Developer I exam
Question #: 76
Topic #: 5
[All Javascript Developer I Questions]

Given the following code:

What is the output of line 02?

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Suggested Answer: D

by Taryn at Apr 11, 2024, 07:15 PM

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Arlen
6 months ago
Wait, what? This question is making my head spin. I'mma just go with 'C' and call it a day.
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Annette
6 months ago
Oh, I got this one! The output is 'object'. The typeof operator returns 'object' for null, so that's the right answer.
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Eveline
6 months ago
Actually, it's 'object'. The typeof operator returns 'object' for null.
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Ling
6 months ago
I think it's 'null'.
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Brock
6 months ago
I agree with the first user, it should be 'object'.
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Pamella
6 months ago
That makes sense. So the output of line 02 is 'object'.
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Kristofer
6 months ago
I think you're right. The typeof operator does return 'object' for null.
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Desirae
6 months ago
I'm not sure, but I think it's 'null'.
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Eulah
6 months ago
I think the output is 'object' too. The typeof operator returns 'object' for null.
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Alverta
7 months ago
Haha, this is a tricky one! I bet the output is 'x-'. The variable 'x' is not defined, so it will just print the string 'x-'.
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Brett
7 months ago
I think it might be option D, 'object'.
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Lyla
7 months ago
Nah, man, the output is 'null'. The variable 'x' is declared but not assigned a value, so it will be 'null'.
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Lino
6 months ago
Yeah, I agree. Since 'x' is declared but not assigned a value, it will be 'null'.
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Tiera
6 months ago
I think the output is 'null'.
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Oretha
7 months ago
I am leaning towards option C, 'undefined'.
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Chantell
7 months ago
I think the output is 'undefined' 0. The variable 'x' is not defined, so it will be 'undefined' when it is logged.
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Rodrigo
6 months ago
D) 'object"
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Crista
7 months ago
C) "undefined" 0
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Bulah
7 months ago
B) "x-
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Alexis
7 months ago
A) "null"
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Emiko
7 months ago
I disagree, I believe the output is 'undefined'.
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Alba
7 months ago
I think the output of line 02 is 'null'.
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Kendra
8 months ago
Hey, guys, I think I've got it! What if the question is actually testing our knowledge of how JavaScript handles undefined variables? If 'x' is not defined, then the output should be 'undefined'. The 0 part is just there to throw us off. I'm confident in option C.
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Daron
8 months ago
Alright, let's think this through logically. If 'x' is not defined, then the output should be 'undefined'. The 0 part is probably just a red herring, meant to confuse us. I'm going with option C, 'undefined' 0.
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Laurel
8 months ago
Okay, I've got a theory. What if 'x' is actually an object, and the code is trying to access a property of that object, which is 0? That could explain the 'undefined 0' output. But I'm still not sure, this is a tricky one.
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Lennie
8 months ago
Haha, these JavaScript questions are always so mind-bending! Let me take a closer look at the code. If 'x' is not defined, then I think the output would be 'undefined'. But the 0 part is a bit weird. Maybe it's trying to concatenate 'undefined' with the number 0? I don't know, I'm just guessing at this point.
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Breana
8 months ago
Hmm, this is a tricky one. The code seems to be logging the value of a variable 'x', but it's not clear what the value of 'x' is. I'm thinking it might be 'undefined' since the variable is not explicitly initialized, but the 0 part is throwing me off a bit.
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Joanne
8 months ago
I'm not too sure about this question. It seems like it's testing our understanding of JavaScript object and variable behavior. I'm leaning towards option C, but I want to hear what the others think.
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Arlette
7 months ago
I'm not so sure, but I'll go with option C as well.
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Arlette
7 months ago
I agree with Destiny, option C seems correct.
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Destiny
7 months ago
I think the output is 'undefined'.
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