AddEmptyDir Method
Adds an empty folder to the archive.
Syntax
archivewriter.addEmptyDir(path, [callback])
Callback
The 'callback' parameter specifies a function which will be called when the operation completes (or an error is encountered). If the 'callback' parameter is not specified, then the method will block and will not return until the operation completes (or an error is encountered).
The callback for this method is defined as:
function(err, data){ }
'err' is the error that occurred. If there was no error, then 'err' is 'null'.
'data' is the value returned by the method.
'err' has 2 properties which hold detailed information:
err.code err.message
Remarks
Use this method to added an empty folder to the archive with an internal path of Path.
The method returns the index of the new folder entry in the Files collection.