C# Online Compiler | .NET Fiddle

<no name> by Anonymous

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

public class Program
{
	public static void Main()
	{
		var list1 = new List<Person>{
			new Person{
				FirstName = "Sunil",
				LastName = "Sunil",
			},
			new Person{
				FirstName = "Sunil",
				LastName = "Sunil",
			}
		};
		
		list1.DistinctBy(p => p.FirstName).Select(p => $"{p.FirstName} {p.LastName}").ToList().ForEach(Console.WriteLine);
	}
}

public class Person
{
	public string FirstName {get; set;}
	public string LastName {get; set;}
}

​x
 
using System;
using System.Collections.Generic;
using System.Linq;
​
public class Program
{
    public static void Main()
    {
        var list1 = new List<Person>{
            new Person{
                FirstName = "Sunil",
                LastName = "Sunil",
            },
            new Person{
                FirstName = "Sunil",
                LastName = "Sunil",
            }
        };
        
        list1.DistinctBy(p => p.FirstName).Select(p => $"{p.FirstName} {p.LastName}").ToList().ForEach(Console.WriteLine);
    }
}
​
public class Person
{
    public string FirstName {get; set;}
    public string LastName {get; set;}
}

Compilation error (line 1, col 1): Unexpected character '•'
Compilation error (line 3, col 1): Unexpected character '•'
Compilation error (line 5, col 1): Unexpected character '•'
Compilation error (line 7, col 1): Unexpected character '•'
Compilation error (line 9, col 1): Unexpected character '•'
Compilation error (line 11, col 1): Unexpected character '•'
Compilation error (line 13, col 1): Unexpected character '•'
Compilation error (line 15, col 1): Unexpected character '•'
Compilation error (line 17, col 1): Unexpected character '•'
Compilation error (line 19, col 1): Unexpected character '•'
Compilation error (line 21, col 1): Unexpected character '•'
Compilation error (line 23, col 1): Unexpected character '•'
Compilation error (line 25, col 1): Unexpected character '•'
Compilation error (line 27, col 1): Unexpected character '•'
Compilation error (line 29, col 1): Unexpected character '•'
Compilation error (line 31, col 1): Unexpected character '•'
Compilation error (line 33, col 1): Unexpected character '•'
Compilation error (line 35, col 1): Unexpected character '•'
Compilation error (line 37, col 1): Unexpected character '•'
Compilation error (line 39, col 1): Unexpected character '•'
Compilation error (line 41, col 1): Unexpected character '•'
Compilation error (line 43, col 1): Unexpected character '•'
Compilation error (line 45, col 1): Unexpected character '•'
Compilation error (line 47, col 1): Unexpected character '•'
Compilation error (line 49, col 1): Unexpected character '•'
Compilation error (line 51, col 1): Unexpected character '•'
Compilation error (line 1, col 1): A namespace cannot directly contain members such as fields or methods

Last Run:	2:54:31 am
Compile:	0s
Execute:	0.032s
Memory:	0b
CPU:	0s

View IL Code