Dart

Dart Bangla Course 🎥 Checkout playlist on youtube Coding in DartPad dartpad Main Method & Comments DataTypes Number in dart String Boolean List Map Condition & break If-Else For Loop Links: ...

Abstract class You went to your local restaurant for breakfast. When you got there, you saw a lump of raw dough sitting in front of the stove. Then a boy came over and asked, “Ruti, paratha, or naan?” Whatever you say, they prepare it right on the spot and serve it to you. ...

I hope you’ve already checked the Abstract & Generic. We already know what abstract class is, and it can be extend from anywhere. // api_state.dart abstract class ApiState {} class Loading extends ApiState {} class Success extends ApiState {} // api_provider.dart class Error extends ApiState {} Sealed class But Sealed class restrict extending class outside the library. You can only extends it within the same library/file. ...