https://pub.dev/documentation/flutter_webview_plugin_ohos/latest/flutter_webview_plugin/JavascriptMessage/JavascriptMessage.html
JavascriptMessage.new constructor - JavascriptMessage - flutter_webview_plugin library - Dart API
API docs for the JavascriptMessage.new constructor from Class JavascriptMessage from the flutter_webview_plugin library, for the Dart programming language.
plugin librarynewconstructorflutterwebview