DefaultIfEmpty Demo : DefaultIfEmpty « LINQ « C# / CSharp Tutorial

1. C# / CSharp Tutorial
2. LINQ
3. DefaultIfEmpty

using System;
using System.Linq;
using System.Collections;
using System.Collections.Generic;

public class MainClass {
    public static void Main() {
        string[] presidents = {"G", "H", "a", "H", "over", "Jack"};

        string name =
          presidents.Where(n => n.Equals("H")).DefaultIfEmpty("Missing").First(); Console.WriteLine(name);

    }
}