Technically C# does not allow functions to be outside of a class, however you could debate that static methods of a static class are functions and not methods. This is a good explanation here: stackoverflow.com/a/155655/2146952 Yaşama you consistently write your C in a way that is easy to read, type-safe, https://marcowlznz.hyperionwiki.com/691364/c_ienumerator_Önemi_nedir_sırları