Why do we need a mixins?

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.

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How do you use a Dart constructor?

Constructors in Dart: The constructors have the same name as the class name and don’t have any return type. In the above syntax: class_name is the name of the class whose constructor is being created. parameters are optional features and they can and can’t be defined for the constructor.20 Tem 2020

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