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WGU Web Development Applications Sample Questions (Q116-Q121):
NEW QUESTION # 116
Given the following code:
What is the value of the variable data when the code runs?
Answer: D
Explanation:
In JavaScript, assigning an empty pair of quotes to a variable creates an empty string.
* Variable Assignment:
* Given the code:
var data = "";
* The variabledatais assigned an empty string.
* Explanation:
* Option A: Null is incorrect because the variable is assigned an empty string, notnull.
* Option B: A single-character string is incorrect because the string is empty.
* Option C: Undefined is incorrect because the variable is assigned a value, even though it is an empty string.
* Option D: An empty string is correct because""represents an empty string.
:
MDN Web Docs - String
W3Schools - JavaScript Strings
NEW QUESTION # 117
Which CSS transformation method should a developer use to reposition an element horizontally on the 2-D plane?
Answer: A
Explanation:
ThetranslateX(n)method in CSS is used to move an element horizontally on the 2-D plane by a specified distance. This transformation repositions the element along the X-axis.
* translateX(n)Method: ThetranslateX(n)function moves an element horizontally bynunits. Positive values move the element to the right, while negative values move it to the left.
* Usage Example:
element {
transform: translateX(100px);
}
In this example, the element is moved 100 pixels to the right.
* Properties:
* n: This represents the distance to move the element. It can be specified in various units such as pixels (px), percentages (%), ems (em), etc.
:
MDN Web Docs ontransform
W3C CSS Transforms Module Level 1
NEW QUESTION # 118
A web page has a section that contains an `<article>` element. The element is always 10 pixels to the right of its normal position.
Which type of layout positioning should the `<article>` element use?
Answer: C
Explanation:
> "Relative positioning allows an element to be positioned relative to its normal (static) position. For example, `left: 10px` shifts the element 10 pixels to the right of its original location."
>
> "Unlike `absolute` or `fixed`, relative positioning does not remove the element from the document flow." References:
* MDN Web Docs: position: relative
* CSS Positioning Module Level 3
---
NEW QUESTION # 119
A JavaScript programmer defines the following function:
```javascript
function square(number) {
return number * number;
}
```
Which keyword causes the function to send back a result?
Answer: D
Explanation:
> "The `return` keyword stops the execution of a function and returns a value to the caller."
>
> In the function `square(number)`, the result of `number * number` is returned using `return`, which makes it available to the calling code.
References:
* MDN Web Docs: return statement
* JavaScript Functions Guide
---
NEW QUESTION # 120
Which tag is required when importing the jQuery library?
Answer: D
Explanation:
> "The `<script>` tag is used to include JavaScript code or import external JavaScript libraries such as jQuery into an HTML document." Example:
```html
<script src="https://code.jquery.com/jquery-3.6.0.min.js"></script>
```
References:
* MDN Web Docs: HTML <script> element
* jQuery Documentation: Getting Started
---
NEW QUESTION # 121
......
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