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

In general, an interface is a device or a system that unrelated entities use to interact .

In general, an interface is a device or a system that unrelated entities use to interact .

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Dart does not have a syntax for declaring interfaces. Class declarations are themselves interfaces in Dart . Classes should use the implements keyword to be able to use an interface.