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New Web-Development-Applications Test Price - First-grade Web-Development-Applications: Pass WGU Web Development Applications Guide

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WGU Web Development Applications Sample Questions (Q48-Q53):

NEW QUESTION # 48
Given the following code:

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

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

Answer: C

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 # 49
Given the following JavaScript code:

What happens when this code is executed?

A. The object with the id innerHTML is changed to x.
B. The object with the id demo is changed to x.
C. The object with the demo is changed to 6.
D. The object with the id innerHTML is changed to 6.

Answer: C

Explanation:
The provided JavaScript code sets a variable x to 6 and then assigns this value to the innerHTML of the HTML element with the id demo.
var x;
x = 6;
document.getElementById("demo").innerHTML = x;
Explanation:
* Variable Declaration: var x; declares the variable x.
* Variable Assignment: x = 6; assigns the value 6 to the variable x.
* DOM Manipulation: document.getElementById("demo").innerHTML = x; finds the element with id demo and sets its innerHTML to the value of x, which is 6.
Outcome:
* The content of the HTML element with the id demo will be changed to 6.
References:
* MDN Web Docs on getElementById
* W3C JavaScript DOM Manipulation

NEW QUESTION # 50
Which method retrieves periods updates about the geographic location of a user:

A. GetContext
B. ClearWatch
C. getCurrentPosition
D. WatchPosition

Answer: D

Explanation:
The watchPosition method in the Geolocation API is used to get periodic updates about the geographic location of a user.
* watchPosition Method: This method calls the provided callback function with the user's current position as the device's location changes.
* Usage Example:
navigator.geolocation.watchPosition(function(position) {
console.log("Latitude: " + position.coords.latitude + ", Longitude: " + position.coords.longitude);
});
In this example, the watchPosition method continuously logs the user's latitude and longitude to the console as the position changes.
References:
* MDN Web Docs on watchPosition
* W3C Geolocation API Specification

NEW QUESTION # 51
Where can users items using the HTML

A. From a web page to another web page
B. From a user's computer to a web page
C. From a web page to a user's computer
D. From a user's computer to another computer

Answer: B

Explanation:
Using HTML, users can upload files from their computer to a web page using the <input> element with the type="file" attribute.
* File Upload Input: The <input type="file"> element is used in forms to allow users to select files from their local file system to be uploaded to a server.
* Usage Example:
The <canvas> element in HTML5 is used to render images and graphics dynamically through JavaScript. It is a powerful feature for creating graphics, game visuals, data visualizations, and other graphical content directly in the browser.
* Canvas Element: The <canvas> element is an HTML tag that, with the help of JavaScript, can be used to draw and manipulate graphics on the fly.
* Usage Example:
html
Copy code
<canvas id="myCanvas" width="200" height="100"></canvas>
<script>
var canvas = document.getElementById("myCanvas");
var ctx = canvas.getContext("2d");
ctx.fillStyle = "#FF0000";
ctx.fillRect(0, 0, 200, 100);
</script>
In this example, a red rectangle is drawn on a canvas element.
References:
* MDN Web Docs on <canvas>
* W3C HTML Canvas 2D Context Specification
<form action="/upload" method="post" enctype="multipart/form-data">
<input type="file" name="fileToUpload" id="fileToUpload">
<input type="submit" value="Upload File" name="submit">
</form>
In this example, users can choose a file from their computer and upload it to the specified server endpoint.
References:
* MDN Web Docs on <input type="file">
* W3C HTML Specification on File Upload

NEW QUESTION # 52
Which code segment creates a slider field that accepts a numeric value ranging from 1 through 10?

Answer: A

Explanation:
To create a slider field that accepts a numeric value ranging from 1 through 10, the input element with type=" range" should be used. The min and max attributes define the range of acceptable values.
* HTML Input Type range:
* Purpose: The range type is used for input fields that should contain a value from a specified range.
* Attributes:
* type="range": Specifies that the input field should be a slider.
* min="1": Sets the minimum acceptable value.
* max="10": Sets the maximum acceptable value.
* Example:
* Given the HTML:
<input type="range" name="sat-level" min="1" max="10">
* Options Analysis:
* Option A:
<input type="number" name="sat-level" max="10">
* This creates a numeric input field, not a slider.
* Option B:
<input type="range" name="sat-level" min="1" max="10">
* This is the correct option that creates a slider field with the specified range.
* Option C:
<input type="number" name="sat-level" min="1" max="10">
* This creates a numeric input field, not a slider.
* Option D:
<input type="range" name="sat-level" max="10">
* This creates a slider but lacks the min attribute, so it doesn't fully meet the requirement.
* References:
* MDN Web Docs - <input type="range">
* W3Schools - HTML Input Range
By using the correct attributes, the slider field will allow users to select a value between 1 and 10.

NEW QUESTION # 53
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