Why do we need a mixins?

Mixins are a way of reusing a class’s code in different class hierarchies . For example, you might have a class called Employee which has methods like clockIn . The code in those classes may be useful for both Bartender and Nurse .

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

Mixins encourage code reuse and can be used to avoid the inheritance ambiguity that multiple inheritance can cause (the “diamond problem”), or to work around lack of support for multiple inheritance in a language. A mixin can also be viewed as an interface with implemented methods.