What event should be used to handle double-tap gestures?
A). touchstart
B). touchmove
C). doubletap
D). touchend
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 ensure touch interactions are smooth and responsive on mobile devices?
A). By minimizing JavaScript processing
B). By using fixed layouts
C). By preventing all touch events
D). By using high-resolution images
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
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
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 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 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 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