Q
Why is it important to use $(document).ready(function() { ... }); in jQuery?

Answer & Solution

Answer: Option A
Solution:
Using $(document).ready(function() { ... }); ensures that the DOM is fully loaded before executing jQuery scripts, preventing errors related to accessing elements that aren't yet available.
Related Questions on Average

Why is it important to adapt layouts based on device orientation?

A). To increase server load

B). To provide an optimal viewing experience in both portrait and landscape modes

C). To restrict content visibility

D). To increase website complexity

How can you ensure that text resizes appropriately on different devices?

A). By using fixed font sizes

B). By using relative units like em or rem

C). By using larger font sizes for all elements

D). By limiting text to a certain width

Which CSS unit is commonly used in fluid grid layouts?

A). Pixels

B). Points

C). Percentages

D). Inches

How can you ensure that a layout adjusts to different screen sizes using CSS?

A). By setting fixed widths

B). By using relative units like percentages and media queries

C). By hiding elements

D). By using absolute positioning

What is the primary purpose of responsive web design?

A). To make websites load faster

B). To make websites compatible with older browsers

C). To ensure websites render well on various devices and screen sizes

D). To reduce the amount of CSS required

Which jQuery method is used to change the source of an image dynamically?

A). .attr()

B). .html()

C). .css()

D). .val()

How does the img { max-width: 100%; } CSS rule help in responsive design?

A). Forces images to a fixed size

B). Ensures images are never larger than their container

C). Prevents images from being displayed

D). Sets a minimum width for all images

What is the purpose of using $(window).resize() in jQuery?

A). To detect when the window is resized and execute a function

B). To detect mouse clicks

C). To load new content

D). To change the CSS of an element

How can jQuery be used to toggle a navigation menu on small screens?

A). By using .hide() and .show() methods

B). By using .toggleClass() method

C). By using .slideToggle() method

D). By using .fadeIn() method

What is the benefit of using smooth scrolling in responsive design?

A). Enhances user experience by providing smoother transitions

B). Increases website load times

C). Prevents users from scrolling

D). Limits the amount of content visible at one time