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

In the context of touch events, what is a gesture?

A). A complex touch interaction

B). A single touch interaction

C). A visual design element

D). A type of touch event

How can you detect a swipe gesture in JavaScript?

A). By tracking only touchstart event

B). By tracking touchstart and touchmove

C). By tracking touchstart and touchend

D). By tracking touchstart, touchmove, and touchend

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

A). jQuery

B). Bootstrap

C). Hammer.js

D). Angular.js

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

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

A). Improves SEO

B). Enhances image loading speed

C). Provides a better user interaction

D). Reduces bandwidth usage

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 is the primary purpose of touch events in mobile devices?

A). To enhance visual design

B). To handle user interactions

C). To increase loading speed

D). To improve SEO

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

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

A). touchend

B). touchmove

C). touchstart

D). touchcancel

What is the touchcancel event used for?

A). To handle touch point disruptions

B). To handle touch point movements

C). To handle touch point starts

D). To handle touch point ends