C# Online Compiler | .NET Fiddle

<no name> by Anonymous

using System;

namespace ConsoleApp3
{
	public class Program
	{
		public static void Main()
		{
			 string s = "something";
			 string newOneString = s.AddToBeginString("my_start_text__");
			
			Console.WriteLine(newOneString); //expected 'my start text__something'
		}
	}
}

namespace ConsoleApp3.Core.Extensions
{
    public static class StringExtension
    {
       //implement AddToBeginString extension method
    }
}

​x
 
using System;
​
namespace ConsoleApp3
{
    public class Program
    {
        public static void Main()
        {
             string s = "something";
             string newOneString = s.AddToBeginString("my_start_text__");
            
            Console.WriteLine(newOneString); //expected 'my start text__something'
        }
    }
}
​
namespace ConsoleApp3.Core.Extensions
{
    public static class StringExtension
    {
       //implement AddToBeginString extension method
    }
}

Compilation error (line 10, col 29): 'string' does not contain a definition for 'AddToBeginString' and no extension method 'AddToBeginString' accepting a first argument of type 'string' could be found (are you missing a using directive or an assembly reference?)

Last Run:	2:10:42 am
Compile:	0s
Execute:	0.216s
Memory:	0b
CPU:	0s

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