void main() {
TowerArea towerArea = TowerArea();
towerArea.tick();
print('success');
//runApp(const MyApp());
}
class TowerArea {
final List<(double, double)> coins = [(0, 0)];
void tick() {
(double, double) coin = coins.first;
coins[0] = (coin.$1, coin.$2 + .01);
}
}In DartPad, this prints success.
In native, this prints success.
In Flutter for Web, this throws the following error:
Error: Expected a value of type '(double, double)', but got one of type '(int, double)'
dart-sdk/lib/_internal/js_dev_runtime/private/ddc_runtime/errors.dart 294:49 throw_
dart-sdk/lib/_internal/js_dev_runtime/private/ddc_runtime/errors.dart 127:3 castError
dart-sdk/lib/_internal/js_dev_runtime/private/ddc_runtime/operations.dart 738:12 cast
dart-sdk/lib/_internal/js_dev_runtime/private/ddc_runtime/types.dart 2319:12 as
dart-sdk/lib/_internal/js_dev_runtime/private/js_array.dart 596:34 _set]
packages/<your package>/main.dart 15:10 tick
packages/<your package>/main.dart 5:12 main$
web_entrypoint.dart 24:31 <fn>
dart-sdk/lib/_internal/js_dev_runtime/private/ddc_runtime/operations.dart 570:37 _checkAndCall
dart-sdk/lib/_internal/js_dev_runtime/private/ddc_runtime/operations.dart 575:39 dcall
lib/ui/initialization.dart 77:15 <fn>
dart-sdk/lib/_internal/js_dev_runtime/patch/async_patch.dart 45:50 <fn>
dart-sdk/lib/async/zone.dart 1661:54 runUnary
dart-sdk/lib/async/future_impl.dart 153:18 handleValue
dart-sdk/lib/async/future_impl.dart 837:44 handleValueCallback
dart-sdk/lib/async/future_impl.dart 866:13 _propagateToListeners
dart-sdk/lib/async/future_impl.dart 638:5 [_completeWithValue]
dart-sdk/lib/async/future_impl.dart 712:7 callback
dart-sdk/lib/async/schedule_microtask.dart 40:11 _microtaskLoop
dart-sdk/lib/async/schedule_microtask.dart 49:5 _startMicrotaskLoop
dart-sdk/lib/_internal/js_dev_runtime/patch/async_patch.dart 181:15 <fn>
I'm using MacOS/Chrome however I have also tested on Windows10/Edge with similar results.
flutter --version
Flutter 3.11.0-11.0.pre.8 • channel master • https://github.com/flutter/flutter.git
Framework • revision 343718945b (6 hours ago) • 2023-05-22 14:11:18 -0400
Engine • revision e04c14786d
Tools • Dart 3.1.0 (build 3.1.0-129.0.dev) • DevTools 2.23.1
dart --version
Dart SDK version: 3.1.0-129.0.dev (dev) (Fri May 19 12:10:06 2023 -0700) on "macos_arm64"
In DartPad, this prints
success.In native, this prints
success.In Flutter for Web, this throws the following error:
I'm using MacOS/Chrome however I have also tested on Windows10/Edge with similar results.
flutter --versiondart --versionDart SDK version: 3.1.0-129.0.dev (dev) (Fri May 19 12:10:06 2023 -0700) on "macos_arm64"