The first word in the interface value points at what I call an interface table or itable (pronounced i-table; in the runtime sources, the C implementation name is Itab). The itable begins with some metadata about the types involved and then becomes a list of function pointers.
42 The interface keyword indicates that you are declaring a traditional interface class in Java. The @interface keyword is used to declare a new annotation type. See docs.oracle tutorial on annotations for a description of the syntax. See the JLS if you really want to get into the details of what @interface means.
An interface promises nothing about an action! The source of the confusion is that in most languages, if you have an interface type that defines a set of methods, the class that implements it "repeats" the same methods (but provides definition), so the interface looks like a skeleton or an outline of the class.
OP asked for interface, I assume it is extended with other properties and methods, you cannot do that with a type and also type is more limited than an interfaces in terms of general usability
An interface is a good example of loose coupling (dynamic polymorphism/dynamic binding) An interface implements polymorphism and abstraction.It tells what to do but how to do is defined by the implementing class.
That having been said, an interface constraint on T should allow reference comparisons between T and any other reference type, since reference comparisons are allowed between any interface and almost any other reference type, and allowing comparisons even that case would pose no problem.
I have the following interface in TypeScript: interface IX { a: string, b: any, c: AnotherType } I declare a variable of that type and I initialize all the properties let x: IX = { ...
In the interface, there is no code. You just specify that there is a property with a getter and a setter, whatever they will do. In the class, you actually implement them. The shortest way to do this is using this { get; set; } syntax. The compiler will create a field and generate the getter and setter implementation for it.