Flutter WebView Platform._OperatingSystem

import 'package:flutter/foundation.dart';
if (defaultTargetPlatform == TargetPlatform.iOS || defaultTargetPlatform == TargetPlatform.android) {
    // Some android/ios specific code
}
else if (defaultTargetPlatform == TargetPlatform.linux || defaultTargetPlatform == TargetPlatform.macOS || defaultTargetPlatform == TargetPlatform.windows) {
    // Some desktop specific code there
}
else {
    // Some web specific code there
}
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