using System;

using System.Collections.Generic;

using System.Linq;

using Newtonsoft.Json.Linq;

​

public class Program

{

    public static void Main()

    {

        var list = new List<string>();

        var selectedList = list.Select(x => x.Equals("s7h"));

        var jArray = JArray.FromObject(selectedList);

        if(jArray.HasValues)

        {

            Console.WriteLine("jArray has values");

        }

        else

        {

            Console.WriteLine($"jArray is empty. jArray: " + jArray.ToString());

        }

    }

}