Stops the Stopwatch.
The elapsedTicks count stops increasing after this call. If the Stopwatch is currently not running, then calling this method has no effect.
void stop() {
_stop ??= _now();
}
© 2012 the Dart project authors
Licensed under the Creative Commons Attribution-ShareAlike License v4.0.
https://api.dart.dev/stable/2.5.0/dart-core/Stopwatch/stop.html