How to know if an object is a File or a Folder ?

[4everJang]

Hello again,

I am looking for an easy method to determine whether a File or Folder object point to an actual file or to a folder. Both objects seem to have the same set of properties, except the File element has more. But the Data Browser in the ESTK refuses to show the contents of a File object when I have not actively retrieved the properties yet. Is this simply a matter of testing whether a file-related property exists in the object? Is there another, more elegant method, an undocumented feature, for instance a property IsFolder or something similar ?

Ciao

Jang

[frameexpert]

Hi Jang,

This from Chapter 3 of the JavaScript Tools Guide:

There are several ways to distinguish between a File and a Folder object. For example:

if (f instanceof File) ...

if (typeof f.open == "undefined") ...// Folders do not open

File and Folder objects can be used anywhere that a path name is required, such as in properties and arguments for files and folders.

Rick

[J.Kahl]

If you simply want to check, if the file/folder object you created points to a file/folder on your computer, maybe this might work:

if (File.exists) ...

or

if (Folder.exists) ...

Jürgen