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/Dart 2

UNKNOWN constant

int const UNKNOWN = -1

A sentinel value if the keycode could not be determined.

Implementation

static const int UNKNOWN = -1

© 2012 the Dart project authors
Licensed under the Creative Commons Attribution-ShareAlike License v4.0.
https://api.dart.dev/stable/2.5.0/dart-html/KeyCode/UNKNOWN-constant.html