WGU (KVO1) Web Development Applications Exam - Topic 3 Question 8 Discussion

Actual exam question for WGU's WGU (KVO1) Web Development Applications exam

Question #: 8
Topic #: 3

[All WGU (KVO1) Web Development Applications Questions]

Given the following code:

```javascript

var data;

```

What is the value of `data` when the code runs?

AUndefined

BNull

CA single character

DAn empty string

Show Suggested Answer

Suggested Answer: A

> ''In JavaScript, any variable declared but not assigned a value is automatically set to `undefined`.''

Example:

```javascript

var data;

console.log(data); // undefined

```

* MDN Web Docs: undefined

* JavaScript Guide: Variables

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by Cheryll at Mar 30, 2026, 03:24 PM

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Lashandra

18 days ago

Totally agree, it's definitely undefined.

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Van

23 days ago

It's undefined!

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Tyra

1 month ago

I was confused about null and undefined, but I believe undefined is correct here.

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Johnathon

2 months ago

This reminds me of a practice question where an uninitialized variable was also undefined. I think that's the right answer.

upvoted 0 times

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Barrett

2 months ago

I'm not entirely sure, but I remember something about variables in JavaScript defaulting to undefined.

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Chandra

2 months ago

I think the value of `data` should be undefined since it's declared but not initialized.

upvoted 0 times

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