Константа NUM_CENTER
NUM_CENTER также соответствует NUMLOCK в Firefox и Safari на Mac.
Реализация
static const int NUM_CENTER = 12;
© 2012 the Dart project authors
Licensed under the BSD 3-Clause "New" or "Revised" License.
https://api.dart.dev/stable/2.19.6/dart-html/KeyCode/NUM_CENTER-constant.html
