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
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 primary goal of responsive web design?
A). To reduce server load
B). To adapt to different screen sizes and devices
C). To increase website loading speed
D). To restrict website access to certain devices
How can jQuery enhance navigation menus in responsive design?
A). By hiding menus permanently
B). By creating dynamic show/hide functionality based on viewport size
C). By increasing menu complexity
D). By restricting menu items
How can jQuery be used to load different image sizes based on the viewport?
A). By using .append()
B). By using .load()
C). By dynamically changing the image src attribute based on viewport size
D). By using .resize() to stretch images
Which jQuery method is used to detect changes in the viewport size?
A). .change()
B). .resize()
C). .scroll()
D). .toggle()
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 do: $(window).resize(function() { if($(window).width() < 768) { $('.menu').hide(); } else { $('.menu').show(); } });
A). Hides the menu for larger screens
B). Shows the menu for smaller screens
C). Hides the menu for screens smaller than 768px and shows it for larger screens
D). Shows the menu for screens smaller than 768px and hides it for larger screens
Which jQuery event is triggered when the window is resized?
A). .resize()
B). .change()
C). .load()
D). .click()
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