supported property
bool supportedChecks if touch events supported on the current platform.
Note that touch events are only supported if the user is using a touch device.
Source
static bool get supported => true;
© 2012 the Dart project authors
Licensed under the Creative Commons Attribution-ShareAlike License v4.0.
https://api.dartlang.org/stable/1.24.3/dart-html/TouchEvent/supported.html