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

Answer & Solution

Answer: Option C
Solution:
The transform: scale() CSS property scales the size of an element, essential for implementing pinch-to-zoom functionality.
Related Questions on Average

Why is it important to prevent default actions for certain touch events?

A). To increase load times

B). To handle custom touch interactions

C). To improve SEO

D). To reduce JavaScript usage

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

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 should you consider when implementing touch gestures for accessibility?

A). Ignore touch gestures for accessibility

B). Provide alternative interactions

C). Use only complex gestures

D). Focus on visual design only

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 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

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

A). touchend

B). touchmove

C). touchstart

D). touchcancel

Why is feedback important in touch interactions?

A). To increase server load

B). To provide immediate visual confirmation

C). To reduce the need for CSS

D). To hide elements

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

A). jQuery

B). Bootstrap

C). Hammer.js

D). Angular.js

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