“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
“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