can anyone point me to a guideline for using js_interop to call a Javascript function from Dart? alternatively, are there any cookbooks for using flutter_qjs?
I've tried reading the docs but they're not at all helpful. what I need is some sample code
You should use js package.
js to pubspec.yamldependencies:
flutter:
sdk: flutter
js: ^0.6.3
web/index.htmlfunction showAlert(message) {
alert(message);
}
import 'package:js/js.dart';
@JS('showAlert')
external void showAlert(String message);
showAlert('You have pushed the button this many times: $_counter');
Here is result 
