Mixins are very helpful when we want to share a behavior across multiple classes that don’t share the same class hierarchy, or when it doesn’t make sense to implement such a behavior in a superclass.16 Eyl 2018
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“To implement a mixin, create a class that extends Object and declares no constructors . Unless you want your mixin to be usable as a regular class, use the mixin keyword instead of class .”15 Ara 2018
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