Proper REPL support for F# in VS Code! Uses FsiX as backend.

You can create either VS Code's repl window, or saveable notebook window. Both of them, support these features:

• Autocompletion, syntax and error highlightning right in the input box. All of these features use your current REPL's state as a context.
• .fsproj and .sln/.slnx support.
• Hot reloading! If you havent changed type signature of your functions, there is no need to recompile your code, relaunch or reevaluate everything - FsiX will patch even already running code.
• Inline Async, Task and any other computation expressions. FsiX will rewrite code like let! res = doSmthAsync() into synchronous code, so debugging async code is way easier now.

• You need .NET 10.0 SDK installed.
• Extension also needs FsiX.Daemon, but it will try to install it automatically.

Currently there is only one setting:

• fsixNotebook.settings.fsixCommand: Provide custom command to run FsiX.

• Inline async expressions are marked as errors by intellisense. Will be fixed soon!
• Even if extension gives fsix context regarding currently openned file, auto-opening of modules is still not perfect.

Enjoy!