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WGU Web Development Applications Sample Questions (Q40-Q45):
NEW QUESTION # 40
Which code segment contains a conditional expression?
Answer: C
Explanation:
A conditional expression in JavaScript is an expression that evaluates to a boolean value and controls the execution flow based on its result. The conditional (ternary) operator ? : is used for conditional expressions.
* Example Analysis:
* Option A:
var result = dataCount;
* This is a simple assignment, not a conditional expression.
* Option B:
var result = count++ > 10;
* This is a comparison but not a complete conditional expression.
* Option C:
var result = dataCount++ * 1000 == 3000000;
* This is an arithmetic operation followed by a comparison but not a complete conditional expression.
* Option D:
javascript
Copy code
var result = count >= 10 ? "Done" : getResult();
* This is a conditional (ternary) expression. If count is greater than or equal to 10, result will be "Done", otherwise, it will call getResult().
* References:
* MDN Web Docs - Conditional (ternary) operator
* W3Schools - JavaScript Conditions
NEW QUESTION # 41
Given the following markup:
Where does the image align in relation to the text?
Answer: D
Explanation:
The CSS property vertical-align: baseline aligns the baseline of the element with the baseline of its parent. For inline elements like images, the baseline alignment means that the bottom of the image aligns with the bottom of the text.
* CSS vertical-align Property:
* Baseline Alignment: Aligns the baseline of the element with the baseline of its parent.
* Example:
<p>Hello World<img src="sample.jpg" style="vertical-align:baseline"></p>
* Analysis:
* The <img> element with vertical-align: baseline will align its bottom with the bottom of the surrounding text "Hello World".
* References:
* MDN Web Docs - vertical-align
* W3C CSS Inline Layout Module Level 3
NEW QUESTION # 42
Which property or method requires a minimum of two values to apply?
Answer: D
Explanation:
This question seems to be about a property or method that requires two values. Without additional context, the most common scenario that fits this description is CSS properties that define sizes or positions with two values. Examples include background-position, margin, padding, etc., where both horizontal and vertical values are needed.
References:
* MDN Web Docs on Background Position
* W3C CSS Backgrounds and Borders Module Level 3
NEW QUESTION # 43
Which technique should a developer use for text-based hyperlink on mobile web page?
Answer: B
Explanation:
When designing text-based hyperlinks for mobile web pages, it is essential to ensure that the links are easily tappable. Adding padding around the clickable area increases the touch target size, making it easier for users to interact with the link on a mobile device.
* Techniques for Mobile-Friendly Links:
* Padding the Clickable Area: By adding padding, you increase the touchable area around the link, which helps prevent user frustration due to missed taps.
* CSS Example:
a {
padding: 10px;
display: inline-block;
}
* Other Options:
* B. Keeping links uniform: This refers to making all links look the same, which is good for consistency but doesn't specifically address the issue of touch targets.
* C. Deploying graphical links: While graphical links can be effective, they do not necessarily improve touch target size for text-based hyperlinks.
* D. Using dynamic page elements near the link: This can lead to a cluttered interface and does not address the touch target issue directly.
* References:
* MDN Web Docs - Touch targets
* Google Developers - Mobile Web Development
NEW QUESTION # 44
Which History API object is called when a browser window's document history changes?
Answer: B
Explanation:
The onpopstate event is triggered in the window object when the active history entry changes, such as when the user navigates to a different page using the back or forward buttons in the browser.
* History API and onpopstate:
* Event: window.onpopstate
* Description: This event is fired when the user navigates to a session history entry, i.e., when moving backwards or forwards in the browser history.
* Example:
window.onpopstate = function(event) {
console.log("location: " + document.location + ", state: " + JSON.stringify(event.state));
};
* Other Options:
* A. Window, location: location is an object containing information about the current URL.
* C. Window, name: name is a property to set or get the name of a window.
* D. Window, open: open is a method to open a new browser window or tab.
* References:
* MDN Web Docs - window.onpopstate
* W3Schools - JavaScript History API
NEW QUESTION # 45
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