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

C# Extension Method - FileInfo - AppendAllLines by ZZZ Projects

// C# Extension Method
// Doc: https://csharp-extension.com/en/method/1002005/fileinfo-appendalllines

// @nuget: Z.ExtensionMethods

using System;
					
public class Program
{
	public static string FileName = "test.txt";
	
	public static void Main()
	{
		SaveFile();
		
		string [] lines = {"	<h2>This is <i>italic</i> heading</h2>", 
						   "</body>", 
						   "</html>"};
		
		// C# Extension Method: FileInfo - AppendAllLines
		FileName.ToFileInfo().AppendAllLines(lines);
		
		// C# Extension Method: FileInfo - ReadAllLines
		var allLines = FileName.ToFileInfo().ReadAllLines();
		
		foreach(string line in allLines)
		{
			Console.WriteLine(line);
		}
	}
	
	private static void SaveFile()
	{
		var html =
        @"<!DOCTYPE html>
<html>
<body>
	<h1>This is <b>bold</b> heading</h1>
	<p>This is <u>underlined</u> paragraph</p>
";
		
		html.SaveAs(FileName);
	}
}

​x
 
// C# Extension Method
// Doc: https://csharp-extension.com/en/method/1002005/fileinfo-appendalllines
​
// @nuget: Z.ExtensionMethods
​
using System;
                    
public class Program
{
    public static string FileName = "test.txt";
    
    public static void Main()
    {
        SaveFile();
        
        string [] lines = {"    <h2>This is <i>italic</i> heading</h2>", 
                           "</body>", 
                           "</html>"};
        
        // C# Extension Method: FileInfo - AppendAllLines
        FileName.ToFileInfo().AppendAllLines(lines);
        
        // C# Extension Method: FileInfo - ReadAllLines
        var allLines = FileName.ToFileInfo().ReadAllLines();
        
        foreach(string line in allLines)
        {
            Console.WriteLine(line);
        }
    }
    
    private static void SaveFile()
    {
        var html =
        @"<!DOCTYPE html>
<html>
<body>
    <h1>This is <b>bold</b> heading</h1>
    <p>This is <u>underlined</u> paragraph</p>
";
        
        html.SaveAs(FileName);
    }
}

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