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
Why should images be optimized for different devices in responsive web design?
A). To improve loading times and performance
B). To decrease image quality
C). To increase server load
D). To restrict image visibility
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
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
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
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
What does the following jQuery code do: $('.carousel').on('swipeleft', function() { $(this).carousel('next'); });
A). Enables swipe gestures to navigate the carousel
B). Disables carousel functionality
C). Increases carousel speed
D). Decreases carousel visibility
Which jQuery method is used to detect changes in the viewport size?
A). .change()
B). .resize()
C). .scroll()
D). .toggle()
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