Q
How does jQuery help in optimizing images for responsive design?

Answer & Solution

Answer: Option B
Solution:
jQuery helps in optimizing images for responsive design by dynamically loading different images based on viewport size, ensuring faster load times and better performance on various devices.
Related Questions on Average

How can jQuery be used to handle touch events on mobile devices?

A). By using .on('swipeleft') and .on('swiperight')

B). By using .click() and .hover()

C). By using .resize() and .load()

D). By using .submit() and .change()

What is a common use of jQuery in responsive web forms?

A). To restrict form submissions

B). To dynamically validate form fields based on viewport size

C). To increase form complexity

D). To reduce form functionality

How can jQuery be used to make forms more responsive?

A). By disabling form fields

B). By dynamically validating fields and providing feedback based on viewport size

C). By increasing the number of form fields

D). By reducing form accessibility

What does the following jQuery code do: $('a[href*='#']').on('click', function(event) { event.preventDefault(); $('html, body').animate({ scrollTop: $($.attr(this, 'href')).offset().top }, 500); });

A). Adds smooth scrolling to anchor links

B). Prevents all anchor links from working

C). Adds a delay to all anchor links

D). Disables smooth scrolling for anchor links

Which jQuery method can be used to animate smooth scrolling for anchor links?

A). .fadeIn()

B). .slideUp()

C). .animate()

D). .hide()

What does the following jQuery code achieve: $('img').each(function() { var src = $(this).attr('src'); if($(window).width() < 768) { $(this).attr('src', src.replace('large', 'small')); } });

A). Increases image sizes for smaller screens

B). Replaces image sources with smaller versions for screens smaller than 768px

C). Removes all images from the page

D). Changes image sources randomly

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

A). It enhances user experience by providing smoother transitions

B). It increases website load times

C). It restricts scrolling functionality

D). It decreases user engagement

Which jQuery event is useful for creating swipe gestures on touch devices?

A). .click()

B). .hover()

C). .swipe()

D). .keypress()

How can jQuery complement CSS3 media queries in responsive design?

A). By replacing CSS3 entirely

B). By providing dynamic functionality and interactions

C). By increasing website load times

D). By limiting the use of media queries

Which jQuery method is used to detect changes in the viewport size?

A). .change()

B). .resize()

C). .scroll()

D). .toggle()