C# 7.0 support
Roslyn 2.0 is currently in pre-release state. As we get close to RTM, dotnetFiddle will be quite useful to try or demo C# 7 features.
.NET Fiddle have now a "NET Core 2.2" compiler option which supports latest C# language syntax.
Unfortunately, it cannot be done in the ".NET Framework " compiler options at this moment.
Dylan Nicholson commented
This was suggested over 2 years ago and there's still no C# 7.0 support??