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WGU Web Development Applications Sample Questions (Q24-Q29):

NEW QUESTION # 24
Given the following CSS code:

How many seconds elapse before the font-size property begins to increase when a user hovers a mouse pointer over the delay element?

A. 0
B. 1
C. 2
D. 3

Answer: C

Explanation:
The CSS transition-delay property specifies how long to wait before starting a property transition. In the given CSS code, the transition-delay is set to 2s.
* CSS Transition Properties:
* transition-property: Specifies the CSS property to which the transition is applied (font-size in this case).
* transition-duration: Specifies how long the transition takes (4s).
* transition-delay: Specifies the delay before the transition starts (2s).
Example:
* Given HTML:
<div id="delay">Hover over me</div>
* Given CSS:
#delay {
font-size: 14px;
transition-property: font-size;
transition-duration: 4s;
transition-delay: 2s;
}
#delay:hover {
font-size: 36px;
}
Explanation: When a user hovers over the element with id="delay", it will wait for 2 seconds before the transition effect on font-size starts.
References:
* MDN Web Docs - transition-delay
* W3C CSS Transitions

NEW QUESTION # 25
Given the following code:

Which type of user input does the developer request by specifying the pattern attribute?

A. Latitude/longitude
B. Country code
C. price
D. Date

Answer: A

Explanation:
The pattern attribute in the <input> element is used to specify a regular expression that the input's value must match for it to be considered valid. The given pattern -?d{1,3}.d+ matches strings that represent decimal numbers with an optional negative sign, typically used for latitude and longitude values.
* Pattern Explanation:
* -? allows for an optional negative sign.
* d{1,3} matches one to three digits.
* . matches a literal dot.
* d+ matches one or more digits.
* Usage Example:
<input type="text" pattern="-?d{1,3}.d+" placeholder="Enter latitude or longitude"> This pattern ensures the input matches the format of latitude/longitude values.
References:
* MDN Web Docs on <input> pattern attribute
* Regular Expressions Documentation

NEW QUESTION # 26
Given the following code:
Var a = ''true'';
What is the data type of d?

A. Object
B. Boolean
C. Undefined
D. String

Answer: D

Explanation:
The data type of the variable a is determined by the value assigned to it. In JavaScript, if a value is enclosed in double or single quotes, it is treated as a string.
* Variable Assignment:
* Given the code:
var a = "true";
* The value "true" is enclosed in double quotes, making it a string.
* Explanation:
* Option A: Boolean is incorrect because the value "true" is a string, not a boolean.
* Option B: String is correct because the value is enclosed in double quotes.
* Option C: Object is incorrect because the value is a primitive string.
* Option D: Undefined is incorrect because the variable a is assigned a value.
* References:
* MDN Web Docs - JavaScript Data Types
* W3Schools - JavaScript Data Types

NEW QUESTION # 27
Given the following code:

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

A. A single-character string
B. An empty string
C. Null
D. Undefined

Answer: B

Explanation:
In JavaScript, assigning an empty pair of quotes to a variable creates an empty string.
* Variable Assignment:
* Given the code:
var data = "";
* The variable data is assigned an empty string.
* Explanation:
* Option A: Null is incorrect because the variable is assigned an empty string, not null.
* 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.
* References:
* MDN Web Docs - String
* W3Schools - JavaScript Strings

NEW QUESTION # 28
Which characters are used to enclose multiple statement in a function?

A. Semicotons
B. Parentheses
C. Spaces
D. Curly braces

Answer: D

Explanation:
In JavaScript, curly braces {} are used to enclose multiple statements in a function, defining the block of code to be executed.
* Curly Braces: Curly braces {} are used to group multiple statements into a single block. This is necessary for defining the body of a function, loops, conditional statements, and other control structures.
* Usage Example:
function greet(name) {
let greeting = "Hello, " + name;
console.log(greeting);
}
In this example, the curly braces enclose the statements that form the body of the greet function.
References:
* MDN Web Docs on Functions
* ECMAScript Language Specification

NEW QUESTION # 29
......

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Practice Web-Development-Applications Test, Latest Web-Development-Applications Braindumps Sheet

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WGU Web Development Applications Sample Questions (Q24-Q29):

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