Salesforce Exam Javascript Developer I Topic 5 Question 68 Discussion

Actual exam question for Salesforce's Javascript Developer I exam

Question #: 68
Topic #: 5

[All Javascript Developer I Questions]

Refer to code below:

console.log(0);

setTimeout(() => (

console.log(1);

});

console.log(2);

setTimeout(() => {

console.log(3);

), 0);

console.log(4);

In which sequence will the numbers be logged?

A01234

B02431

C02413

D13024

Show Suggested Answer

Suggested Answer: B

by Kirk at Oct 19, 2023, 02:37 PM

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Callie

1 days ago

Haha, this one's a real brain-teaser! I'm gonna go with C) 02413 just to be different. Who knows, maybe the exam folks are trying to catch us out with a trick question.

upvoted 0 times

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Hmm, let's see... If I remember my JavaScript fundamentals, the console.log's will execute in the order they're written, and the setTimeout's will get added to the task queue. So the answer has to be B) 02431. I hope I'm right!

upvoted 0 times

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Doyle

14 days ago

Hmm, that's an interesting point. I see your rationale. Let's wait for others to share their opinions.

upvoted 0 times

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Beth

17 days ago

Ah, the classic event loop conundrum! I'm pretty sure the correct answer is B) 02431. Those setTimeout's can be tricky, but I think I've got the hang of it now.

upvoted 0 times

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Cathrine

19 days ago

I disagree, I believe the answer is C) 02413 because the setTimeout with 0ms delay will be executed first.

upvoted 0 times

...

Doyle

22 days ago

I think the answer is B) 02431 because the setTimeout with 0ms delay will be executed last.

upvoted 0 times

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Salesforce Exam Javascript Developer I Topic 5 Question 68 Discussion

Contribute your Thoughts:

Callie

Queenie

Doyle

Beth

Cathrine

Doyle