Dart. Extending a class. Enumerated types. Mixins. Generics. Using generic methods.
Useful links:
Mixins are awesome because they solve a basic problem that comes with inheritance. They are an elegant way to reuse code from different classes that don’t quite fit into the same class hierarchy.
https://quickbirdstudios.com/blog/flu...
Flutter code utilizes Dart generics everywhere to guarantee object types are what we anticipate that they should be. Basically, generics are an approach to code a class or capacity so it works with a scope of information types rather than only one while remaining sort-safe. The type the code will work with is indicated by the caller, and along these lines, type safety is kept up.
https://medium.flutterdevs.com/explor...