using System;

public class Program

{

    public static void Main()

    {

        string strOpt = null;//"yeppers";

        Console.WriteLine(strOpt == null ? "null" : strOpt.Length.ToString());

        //simplified

        if(strOpt != null){

            Console.WriteLine(strOpt.Length);

        } else {

            Console.WriteLine("No count for you");

        }

        //more simplified

        if(strOpt != null){

            var count = strOpt.Length;

            Console.WriteLine("Count is: {count}");

        } else {

            Console.WriteLine("Still No count for you");

        }

        //Fancy

        if(strOpt != null && strOpt.Length > 50){

            var count = strOpt.Length;

            Console.WriteLine("Count is: {count}");

        } else {

            Console.WriteLine("Not Long Enough");

        }

​

    }

}