Свойство elapsedMilliseconds
Счётчик elapsedTicks, преобразованный в миллисекунды.
Реализация
external int get elapsedMilliseconds;
© 2012 the Dart project authors
Licensed under the BSD 3-Clause "New" or "Revised" License.
https://api.dart.dev/stable/2.18.5/dart-core/Stopwatch/elapsedMilliseconds.html
