KonradJanica commented on a change in pull request #16363:
URL: https://github.com/apache/beam/pull/16363#discussion_r781633925
##########
File path: playground/frontend/lib/pages/playground/states/playground_state.dart
##########
@@ -156,6 +166,39 @@ class PlaygroundState with ChangeNotifier {
status: RunCodeStatus.finished,
output: _selectedExample!.outputs,
);
+ _executionTime?.close();
notifyListeners();
}
+
+ StreamController<int> _createExecutionTimeStream() {
+ StreamController<int>? streamController;
+ Timer? timer;
+ Duration timerInterval = const Duration(milliseconds:
kExecutionTimeUpdate);
+ int ms = 0;
+
+ void stopTimer() {
+ if (timer != null) {
+ timer?.cancel();
Review comment:
The question mark is just a shorthand null check, so this code compiles
to:
```
if (timer != null) {
if (timer != null) {
timer.cancel();
}
}
```
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