The fileDescription() function accepts a file path as a parameter and returns a fileDescription object containing lots of information about the file at that path.
object type
The files(), folders(), and filesAndFolders() functions return a list of fileDescription objects. These objects are property lists containing a number of different properties of the file or folder. For backward compatibility, the asText property of each fileDescription is set to the short name of the file or folder, so that is how the object will be displayed.