What is the benefit of using pinch-to-zoom in mobile interfaces?

What library can be used to simplify handling touch gestures in JavaScript?

A). jQuery

B). Bootstrap

C). Hammer.js

D). Angular.js

Which touch event is fired when a touch point is removed from the touch surface?

A). touchstart

B). touchmove

C). touchcancel

D). touchend

What is the role of transform: scale() in implementing pinch-to-zoom functionality?

A). It rotates the element

B). It changes the opacity of the element

C). It scales the element size

D). It moves the element

What does the touchmove event do?

A). Fires when a touch point is removed

B). Fires when a touch point moves

C). Fires when a touch point is placed

D). Fires when a touch point is disrupted

What is the purpose of the preventDefault() method in touch event handling?

A). To allow default touch behavior

B). To prevent the default browser action

C). To increase page load time

D). To disable touch events

How does the touch-action CSS property contribute to touch event handling?

A). Prevents all touch interactions

B). Defines how an element can be manipulated by touch

C). Increases the speed of touch events

D). Disables touch events

What does the .on('swipe', function) method in Hammer.js do?

A). Adds a swipe event handler

B). Adds a touchstart event handler

C). Adds a touchmove event handler

D). Adds a touchend event handler

What is a common use case for the touchmove event in mobile web applications?

A). To detect finger movement across the screen

B). To initiate a new touch point

C). To end a touch interaction

D). To cancel a touch interaction

How can touch interactions be tested effectively on multiple devices?

A). By using a single mobile device

B). By using only desktop browsers

C). By testing on a range of devices and screen sizes

D). By disabling touch events in the code

Which event is fired when a user places a finger on the touch surface?

A). touchend

B). touchmove

C). touchstart

D). touchcancel