Default interface methods are included in a new feature proposal for C# 8, which will allow developers to use the traits programming technique on the .NET platform.

This article discusses how we can take advantage of PostSharp to validate the parameters of methods in C#. To work with the code examples provided in this article, you should have Visual Studio ...

There's more to say here -- you can, for example, call non-static (instance) methods in your C# code from JavaScript and you can return values from JavaScript to C#.