How to check if IEnumerable is null or empty?

Question

I love string.IsNullOrEmpty method. I\'d love to have something that would allow the same functionality for IEnumerable. Is there such? Maybe some collection he

Answer 1

 public static bool AnyNotNull(this IEnumerable source)
    {
        return source != null && source.Any();
    }

my own extension method to check Not null and Any