public static void Main()
var array = x?.Split(';').ToArray();
Console.WriteLine(array?.Count());
var array2 = string.IsNullOrWhiteSpace(x) ? null : x.Split(';').ToArray();
Console.WriteLine(array2?.Count());
var array3 = x.Split(';').ToArray();
Console.WriteLine(array3?.Count());
var table = new string[0];
Console.WriteLine(string.Join(";", table) == "");