Introduction

Mixins allow Dart code to be reusable across separate classes. It is more efficient to reuse common code from multiple classes that share common behaviors.

A mixin class contains methods used by other classes without being their parent. It allows us to use a class’ code without having to inherit from it. This is how mixins differ from interfaces and abstract classes.

Declaring Mixins

Mixins are declared using the keyword mixin like below:

mixin SharedBehavior {

}