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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
11 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
11 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
10 months ago
Actually, it's 'object'. The typeof operator returns 'object' for null.
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Ling
11 months ago
I think it's 'null'.
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Brock
11 months ago
I agree with the first user, it should be 'object'.
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Pamella
11 months ago
That makes sense. So the output of line 02 is 'object'.
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Kristofer
11 months ago
I think you're right. The typeof operator does return 'object' for null.
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Desirae
11 months ago
I'm not sure, but I think it's 'null'.
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Eulah
11 months ago
I think the output is 'object' too. The typeof operator returns 'object' for null.
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Alverta
11 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
12 months ago
I think it might be option D, 'object'.
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Lyla
12 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
11 months ago
Yeah, I agree. Since 'x' is declared but not assigned a value, it will be 'null'.
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Tiera
11 months ago
I think the output is 'null'.
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Oretha
12 months ago
I am leaning towards option C, 'undefined'.
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Chantell
12 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
11 months ago
D) 'object"
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Crista
11 months ago
C) "undefined" 0
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Bulah
11 months ago
B) "x-
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Alexis
11 months ago
A) "null"
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Emiko
12 months ago
I disagree, I believe the output is 'undefined'.
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Alba
1 years ago
I think the output of line 02 is 'null'.
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Kendra
1 years 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
1 years 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
1 years 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
1 years 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
1 years 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
1 years 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
11 months ago
I'm not so sure, but I'll go with option C as well.
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Arlette
11 months ago
I agree with Destiny, option C seems correct.
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Destiny
12 months ago
I think the output is 'undefined'.
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