When should I use mixins?

They are an elegant way to reuse code from different classes that don’t quite fit into the same class hierarchy . A mixin is a class whose methods and properties can be used by other classes – without subclassing. that you need to use when creating animations in Flutter.4 Eki 2021

As defined in Wikipedia, a mixin is a class containing methods that can be used by other classes without a need to inherit from it. In other words, a mixin provides methods that implement a certain behavior, but we do not use it alone, we use it to add the behavior to other classes .12 Ara 2021

A mixin is a class that defines and implements a single, well-defined feature. Subclasses that inherit from the mixin inherit this feature—and nothing else. Mixins are a safe form of multiple inheritance .