100% Pass Quiz 2025 Web-Development-Applications: Newest WGU Web Development Applications Practice Braindumps

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WGU Web Development Applications Sample Questions (Q61-Q66):

NEW QUESTION # 61
Which code segment correctly defines a function in JavaScript?

A. Void addNumbers(a, b)
B. Function addNumbers (a, b)
C. Function addNumber (in a, int b)
D. Void addNumber(int a, int b)

Answer: B

Explanation:
In JavaScript, functions are defined using the function keyword followed by the name of the function, a set of parentheses (), and a block of code enclosed in curly braces {}.
* Function Definition Syntax:
* Correct Syntax:
function addNumbers(a, b) {
// function body
}
* Explanation:
* function: Keyword to define a function.
* addNumbers: Name of the function.
* (a, b): Parameters for the function.
* { ... }: Function body containing the code to be executed.
* Incorrect Options:
* A. Void addNumbers(a, b): JavaScript does not use void to define functions.
* C. Void addNumber(int a, int b): JavaScript does not use void or type declarations (int).
* D. Function addNumber (in a, int b): JavaScript functions do not use type declarations.
* References:
* MDN Web Docs - Functions
* W3Schools - JavaScript Functions

NEW QUESTION # 62
What should a developer correct before revalidating after a code validator reports multiple errors in code?

A. Only CSS errors
B. Only JavaScript errors
C. The last reported error
D. The first reported error

Answer: D

Explanation:
When using a code validator to check your HTML, CSS, or JavaScript code, it's essential to address errors in a systematic manner. The correct approach is to correct the first reported error before revalidating. This method is recommended because often, the first error can cause a cascade of subsequent errors or warnings.
By fixing the first error, you may automatically resolve other errors that were reported later.
* Reasoning:
* Cascading Errors: The first error in the code might lead to multiple subsequent errors. Fixing it can sometimes resolve those cascading errors, reducing the overall number of errors in the next validation.
* Logical Flow: Addressing errors in the order they appear maintains a logical flow and makes debugging more manageable.
* Steps to Follow:
* Step 1: Run the code through the validator.
* Step 2: Identify the first reported error.
* Step 3: Correct the first error.
* Step 4: Revalidate the code to check if the error count has reduced or if new errors appear.
* Step 5: Repeat the process until all errors are resolved.
* References:
* W3C Markup Validation Service
* MDN Web Docs - Debugging HTML
* W3C CSS Validation Service

NEW QUESTION # 63
Which programming paradigm best describes JavaScript?

A. Object-oriented
B. Object-based
C. Event-driven
D. Function-driven

Answer: B

Explanation:
JavaScript is often described as an object-based language, meaning it is centered around objects. While it supports object-oriented programming (OOP) concepts, it is more accurate to describe it as object-based due to its prototypal inheritance model rather than classical inheritance.
* Object-Based: JavaScript is built around objects and supports the creation and manipulation of objects.
* Object-Oriented Features: JavaScript supports OOP principles like encapsulation, inheritance, and polymorphism, but through prototype chains rather than class-based inheritance.
* Functional and Event-Driven: JavaScript supports functional programming and is often used in an event-driven manner, particularly in the context of web browsers.
References:
* MDN Web Docs on JavaScript Object Model
* W3C JavaScript Overview

NEW QUESTION # 64
Given the following code:
Var a = ''true'';
What is the data type of d?

A. Object
B. Undefined
C. Boolean
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 # 65
Which 3D transform affects the distance between the z-plane and the user?

Answer: C

Explanation:
The perspective(n) method in CSS is used to affect the distance between the z-plane and the user, effectively changing the perspective depth of a 3D transformed element.
* perspective(n) Method: The perspective function defines how far the element is from the user. It affects the appearance of the 3D transformed element, giving it a sense of depth.
* Usage Example:
container {
perspective: 1000px;
}
In this example, the perspective is set to 1000 pixels, which defines the distance between the z-plane and the user.
* Properties:
* n: This represents the perspective distance. The lower the value, the more pronounced the perspective effect.
References:
* MDN Web Docs on perspective
* W3C CSS Transforms Module Level 1

NEW QUESTION # 66
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100% PASS QUIZ 2025 WEB-DEVELOPMENT-APPLICATIONS: NEWEST WGU WEB DEVELOPMENT APPLICATIONS PRACTICE BRAINDUMPS

100% Pass Quiz 2025 Web-Development-Applications: Newest WGU Web Development Applications Practice Braindumps