Sharepoint C#: Check if URL is a file or folder

How to check if a Sharepoint URL is a file or a folder.

The code uses the NormalizeUrl function.

Code

public bool IsFolder(string url)
{
	url = NormalizeUrl(url);

	try
	{
		var rootFolders = _context.Web.GetFolderByServerRelativeUrl(url).Folders;
		_context.Load(rootFolders, folders => folders.Include(f => f.ListItemAllFields));
		_context.ExecuteQuery();
		return true;
	}
	catch
	{
		return false;
	}
}