How can I detect if the browser supports the gesturestart event?

Question

How can I detect if the browser supports the gesturestart and other gesture events? These events are used for pinch to rotate and zoom.

They seem to be only available on iOS.

I wish to emulate them if they are not available natively.

Answer 1

I think you can simply check if event exists, something like this:

document.documentElement.ontouchstart !== 'undefined'