Lập trình bất động bộ trong Dart
[asynchronous], [future], [async], [await]
https://viblo.asia/p/lap-trinh-bat-dong-bo-trong-dartflutter-voi-futures-async-await-OeVKB8Q0lkW
https://dart.dev/codelabs/async-await
https://pub.dev/packages/synchronized
[asynchronous], [future], [async], [await]
https://viblo.asia/p/lap-trinh-bat-dong-bo-trong-dartflutter-voi-futures-async-await-OeVKB8Q0lkW
https://dart.dev/codelabs/async-await
https://pub.dev/packages/synchronized