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

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

What are CSS media queries used for?

A). Adding animations to elements

B). Applying styles based on the device characteristics

C). Creating image sliders

D). Defining CSS variables

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

C). Limits the content to a fixed width

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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

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

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

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How can touch events be handled in jQuery for responsive design?

A). By using .hover() method

B). By using .click() method

C). By using .swipe() method

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

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C). To restrict content visibility

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

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

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