A decade later, Microsoft started growing free, open-source, and cross-platform tooling for C#, namely Strong Middle Full-Stack Developer (C#/JS) with German job Visual Studio Code, .NET Core, and Roslyn. Mono joined Microsoft as a project of Xamarin, a Microsoft subsidiary. C# could make calls to any library included within the List of .NET libraries and frameworks. C# Programming: What It’s, The Way It’s Used + The Way To Be Taught It Other examples are enum (enumerations) and struct (user outlined