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.
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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 benefit of using smooth scrolling in responsive design?

A). Enhances user experience by providing smoother transitions

B). Increases website load times

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What does the .on('click', function) method in jQuery do?

A). Attaches a click event handler to selected elements

B). Hides selected elements

C). Changes the background color of selected elements

D). Resizes selected elements

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

A). .attr()

B). .html()

C). .css()

D). .val()

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

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

What does the $('.menu-toggle').click(function() { $('.menu').slideToggle(); }); code do?

A). Hides the menu permanently

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

A). By setting fixed widths

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How does a fluid grid layout help in responsive design?

A). Provides a fixed layout

B). Uses relative units like percentages to adapt to different screen sizes

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What does the max-width property do in responsive design?

A). Sets a fixed width

B). Allows an element to shrink below a specified width

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