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Inspired by EdgeCase's fantastic Ruby koans, the goal of the F# koans is to teach you F# through testing.
When you first run the koans, you'll be presented with a runtime error and a stack trace indicating where the error occured. Your goal is to make the error go away. As you fix each error, you should learn something about the F# language and functional programming in general.
Your journey towards F# enlightenment starts in the AboutAsserts.fs file. These koans will be very simple, so don't overthink them! As you progress through more koans, more and more F# syntax will be introduced which will allow you to solve more complicated problems and use more advanced techniques.
The F# Koans needs .Net Core 2.0 to be built and run, make sure that you have installed it before building the project.
Additionally, the project provides Visual Studio Code configuration for running. To be able to run F# projects in Visual Studio Code, the ionide plugin should be also installed.
-
To build the Koans, run
dotnet build
command in the project root. -
To run the Koans, run
dotnet run -p FSharpKoans/FSharpKoans.fsproj
command in the project root ordotnet run
inFSharpKoans
project directory.
- Open the project directory in Visual Studio Code with Ionide-fharp plugin installed and press F5 to build and launch the Koans (require some time to build the project before launch).
You can also use dotnet-watch to have your changes reloaded automatically.
To do so, navigate into FSharpKoans
directory and run dotnet watch run
.
Now, after you change the project code, it will be automatically reloaded and tests rerun.