For every developer, tooling is important; very important. When you’re confident your tools (ide, compiler, documentation), you can achieve great goals and successfull tasks. Microsoft decided to start VSCode, a light-weight editor. For experts (like me :) ), looking at the application folder allow you to determine how the software is made. The fact is that this little app is so performance oriented is that it’s only C/C++ that can achieve that. Looking at the dlls gives me the right position. MSVCR, MSVCP stuff belongs to the Visual C++ compiler redist. But I can see vccorlib which means the application could be hybrid stuff with C++ and C# stuff inside but I can affirm that. But I feel it. I think we have C++ CLR stuff may be. On the documentation, I saw they were using Roselyn, may be is it included in the binaries because Code.exe is heavy, near 47 MB.
For experts, you can say that VSCode is a clone of Sublime Text may be… The application is made the same way.
Light-weight, smooth, power and performance. All the C++ rules !