I #learnedFromFsharpCompiler that debugger can be very useful, despite trendy hates against it. The following .NET attributes are handy for changing debugging appearance: [<DebuggerTypeProxy(typeof / typedefof<{proxyType}>)] [<DebuggerDisplay("X={expr}")>]

In #fsharp, (# .. #) syntax is used to emit IL instructions. This is from the Fsharp.Core code #learnedFromFsharpCompiler

Let's see for how long I can maintain a weekly series of newly learned things from the F# compiler tooling codebase: According to GitHub stats, 2.4% of the fsharp repo is VB .NET . I do not trust the number, but indeed there is a project :-) #fsharp #learnedFromFsharpCompiler