What is the use of interface in Dart?

The interface in the dart provides the user with the blueprint of the class, that any class should follow if it interfaces that class i.e. if a class inherits another it should redefine each function present inside an interfaced class in its way. They are nothing but a set of methods defined for an object.20 Tem 2020

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What is polymorphism in flutter?

Polymorphism is exemplified in Dart by the @override metatag. With it, a subclass’s implementation of an inherited behavior can be specialized to be appropriate to its more specific subtype . When a class has properties that are themselves instances of other classes, it’s using composition to add to its abilities.10 Tem 2020

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