While static constructors are always called before the first usage of a type it's sometimes useful to be able to force them to be called and the
RuntimeHelpers class provide an helper for it:
using System.Runtime.CompilerServices; // ... RuntimeHelpers.RunClassConstructor(typeof(Foo).TypeHandle);
Remark: All static initialization (fields initializers for example) will run, not only the constructor itself.
Potential usages: Forcing initialization during the splash screen in an UI application or ensuring that a static constructor doesn't fail in an unit test.