Salesforce Exam Javascript-Developer-I Topic 5 Question 76 Discussion

Actual exam question for Salesforce's Salesforce Certified JavaScript Developer I exam

Question #: 76
Topic #: 5

[All Salesforce Certified JavaScript Developer I Questions]

Given the following code:

What is the output of line 02?

A'null'

B'x-

C'undefined' 0

D'object'

Show Suggested Answer

Suggested Answer: D

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

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Kendra

10 days 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

12 days 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

13 days 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

15 days 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

17 days 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

18 days 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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