// C# Extension Method

// Doc: https://csharp-extension.com/en/method/1002141/string-getnumericvalue

​

// @nuget: Z.ExtensionMethods

​

using System;

using System.Collections.Generic;

​

public class Program

{

    public static void Main()

    {

        var myString = "EF6";

​

         // C# Extension Method: String - GetNumericValue

         var result = myString.GetNumericValue(2);

​

         Console.WriteLine(result);

    }

}