// C# Extension Method

// Doc: https://csharp-extension.com/en/method/1002199/char-converttoutf32

​

// @nuget: Z.ExtensionMethods

​

using System;

​

public class Program

{

    public static void Main()

    {

        char highSurrogate = '\uD800';

        char lowSurrogate = '\uDC00';

​

        //C# Extension Method: Char - ConvertToUtf32

        var result = highSurrogate.ConvertToUtf32(lowSurrogate);

​

        Console.WriteLine(result);

    }   

}