How to define interfaces in Dart?

How to define interfaces in Dart?

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dart

When to use mixins and when to use interfaces in Dart?

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dart

Abstract base class in Dart

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dart

In Dart, is it possible to pass an argument in a singleton?

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dart

How to implement inheritance in dart?

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dart

Benefits of an abstract class with a factory constructor?

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dart

Understanding 'implements' and 'with' in Dart

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dart

What's the purpose of allowing the declaration of an abstract method in a non-abstract class?

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dart

Flutter: Difference in initializing variables in a Class

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dart

declaring a method as optional in abstract class

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dart

I cannot understand what is `Null` in Dart

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dart

How to access other classes method in flutter (dart)?

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dart

What does the ":" means in class constructors in dart?

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dart

this.field syntactic sugar on constructor parameter list and inherited field.

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dart

Reduce number of Wrapper Objects in Dart

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dart