Jan Jones
janjones.me
Jan Jones
@janjones.me
C# (Roslyn) compiler dev at Microsoft
https://github.com/jjonescz
Fully revamped the tree view 🌳 in .NET Lab. Now with cursor syncing. Can display syntax, IOperation, and symbol info. #dotnet #csharp #roslyn #dotnetlab
October 5, 2025 at 3:58 PM
Added a small but useful feature to copy the current URL in .NET Lab (lab.razor.fyi). It has a keyboard shortcut too: Ctrl+; 📋
#dotnet #csharp #roslyn #dotnetlab
September 6, 2025 at 1:04 PM
.NET Lab (lab.razor.fyi) just gained new configuration options inspired by `dotnet run app.cs`. Reference any NuGet packages via `#:package` or quickly change config via `#:property` (with editor suggestions to guide you). 🚀⚙️
July 26, 2025 at 3:54 PM
.NET Lab (lab.razor.fyi) now has Code Actions 🚀 Very useful when you paste some code snippet and want to add missing usings. But it can do much more - all Roslyn code fixes are included.
June 28, 2025 at 10:22 AM
Added semantic highlighting to .NET Lab (lab.razor.fyi)
June 22, 2025 at 1:04 PM
Completions and live diagnostics are now much improved and enabled by default in .NET Lab (lab.razor.fyi). Stay tuned for more enhancements to the editing experience coming soon.
May 16, 2025 at 7:05 AM
Shared lab.razor.fyi snippets are now cached, so you can see the output even before the compiler is initialized. (Nevertheless, more optimizations of loading times are coming.) Example: lab.razor.fyi#47Lm4gooyk8v...
March 2, 2025 at 9:47 AM
Added this cool loading animation to lab.razor.fyi. Suddenly the loading feels faster ⚡
February 21, 2025 at 5:34 PM
Old version using Bootstrap
December 20, 2024 at 5:33 PM
Updated lab.razor.fyi to use Microsoft Fluent UI. Quite happy with the result. Also got dark mode for free.
December 20, 2024 at 5:33 PM