C# - Is it possible (how) to use "||" in an array?

Question

Programming

Hello! I am a beginner C# programmer. I was writing a program, and I came across this problem:
There are several "strings" - different variations of people's names. Each name has its own array with its variations (For example: Vasya, Vasily, VASYA, VASILY, etc.). It is necessary to use the logical "Or" - "||" in the array. But when I use it, I get an error - "The operator "||" cannot be applied to an operand of type "string" and "string"". Is it possible to solve this problem? And if so, how? Please, help.

Answer 1

No, the II operator cannot be used in this way. However, you can "pump" an array using extension methods.

static class Program
    {
        static bool HasName(this IEnumerable<string> list, string name)
        {
            return list.Any(n => string.Compare(n, name, StringComparison.OrdinalIgnoreCase) == 0);
        }

        static void Main(string[] args)
        {
            var list = new string[] {"Вася", "Василий", "Вась"};
            var name = "ВАСЯ";
            if (list.HasName(name))
                Console.WriteLine("Совпало");
            else
                Console.WriteLine("Ошибка");
            Console.ReadLine();
        }
    }