c# write to a file with while code example

Example: c# how to write to a file

using System.IO;
using System.Threading.Tasks;

class WriteAllLines
{
    public static async Task ExampleAsync()
    {
        string[] lines =
        {
            "First line", "Second line", "Third line" 
        };

        await File.WriteAllLinesAsync("WriteLines.txt", lines);
    }
}