C# Regular Expression Match deconstruction

Program.cs

class Program
{
    static void Main(string[] args)
    {
        var regex = new Regex(@"(\w+) (\d+)");
        var input = "John 9731879";
         
        var (_, name, phone) = regex.Match(input);
            
        Console.WriteLine(name);
        Console.WriteLine(phone);
        Console.ReadLine();
    }
}

RegexMatchExtensions.cs

public static class RegexMatchExtensions
{
    public static void Deconstruct(this Match match, out string group1)
    {
        group1 = GetGroupByIndex(match, 0);
    }
        
    public static void Deconstruct(this Match match, out string group1, out string group2)
    {
        group1 = GetGroupByIndex(match, 0);
        group2 = GetGroupByIndex(match, 1);
    }

    public static void Deconstruct(this Match match, out string group1, out string group2, out string group3)
    {
        group1 = GetGroupByIndex(match, 0);
        group2 = GetGroupByIndex(match, 1);
        group3 = GetGroupByIndex(match, 2);
    }

    private static string GetGroupByIndex(Match match, int index)
    {
        if (match.Groups.Count > index)
        {
            return match.Groups[index].Value;
        }
            
        return null;
    }
}

This would work also:

public static void Deconstruct(this Match match, out string group1, out string group2, out string group3)
{
    group1 = match.Groups[0].Value;
    group2 = match.Groups[1].Value;
    group3 = match.Groups[2].Value;
    // etc ...
}

... because GroupCollection doesn't throw when you reference a nonexistent Group - so no need for GetGroupByIndex.

Nice, thanks! I thought it would throw.