ActionToUnit - Funcky User Guide

The ActionToUnit function wraps a action into a function that returns a Funcky.Unit instance.

You could write this method for yourself like this:

public static Func<Unit> ActionToUnit(Action action) => (Func<Unit>) (() =>
{
  action();
  return new Unit(); // or default, or Funcky.Unit.Value
});

However, if you now wanted a wrapper for a method with a parameter going into the action, you would need to write this:

public static Func<T, Unit> ActionToUnit<T>(Action<T> action) => (Func<T, Unit>) (parameter =>
{
  action(parameter);
  return new Unit();
});

Now with 2 parameters, you would need 2 generic parameters, and so on. We already support everything from 0 up to 8 in the static class Functional, so you can just write using static Funcky.Functional in your using section, and start using ActionToUnit.

For some use cases, see the Unit Type documentation.

Here one example with a switch expression:

var value = GetValue();
_ = value switch
{
	"Known" => ActionToUnit(() => Console.Write("Known")),
	_ => ActionToUnit(() => Console.Write("Unknown")),
};