C# Extension Method - FileInfo - HasExtension | C# Online Compiler

C# Extension Method - FileInfo - HasExtension by ZZZ Projects

// C# Extension Method
// Doc: https://csharp-extension.com/en/method/1002020/fileinfo-hasextension

// @nuget: Z.ExtensionMethods

using System;
					
public class Program
{
	public static void Main()
	{
		string FileName = "folder\\subfolder\\test.txt";
				
		// C# Extension Method: FileInfo - HasExtension
		if(FileName.ToFileInfo().HasExtension())
		{
			Console.WriteLine("File has extension.");
		}
		else
		{
			Console.WriteLine("File has no extension.");
		}
	}
}

​x
 
// C# Extension Method
// Doc: https://csharp-extension.com/en/method/1002020/fileinfo-hasextension
​
// @nuget: Z.ExtensionMethods
​
using System;
                    
public class Program
{
    public static void Main()
    {
        string FileName = "folder\\subfolder\\test.txt";
                
        // C# Extension Method: FileInfo - HasExtension
        if(FileName.ToFileInfo().HasExtension())
        {
            Console.WriteLine("File has extension.");
        }
        else
        {
            Console.WriteLine("File has no extension.");
        }
    }
}

Compilation error (line 1, col 1): A namespace cannot directly contain members such as fields or methods
Compilation error (line 8, col 15): Expected class, delegate, enum, interface, or struct
Compilation error (line 26, col 8): Identifier expected
Compilation error (line 26, col 10): Expected class, delegate, enum, interface, or struct
Compilation error (line 26, col 21): Expected class, delegate, enum, interface, or struct
Compilation error (line 26, col 34): Expected class, delegate, enum, interface, or struct
Compilation error (line 48, col 51): Expected class, delegate, enum, interface, or struct
Compilation error (line 49, col 3): Type or namespace definition, or end-of-file expected

Last Run:	3:03:23 am
Compile:	0s
Execute:	0.03s
Memory:	0b
CPU:	0s

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