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