Is it better to return null or empty collection?

Question

That\'s kind of a general question (but I\'m using C#), what\'s the best way (best practice), do you return null or empty collection for a method that has a collection as a

Answer 1

Empty Collection. If you're using C#, the assumption is that maximizing system resources is not essential. While less efficient, returning Empty Collection is much more convenient for the programmers involved (for the reason Will outlined above).