How to check given path isFile or isDirectory in jsx?

Hello,

I want to check that given path is File or Directory in a jsx.

The 'isFileExist' function only check that path is exist or not in the file system.

I want to check it is 'folder' or 'file'

For example,

          path = 'd:/folder1' then isFile method should return 'false'

          path = 'd:/folder1/1.epr' then isFile method should return 'true'

How can I do that? I am using below code.

isFileExist : function(path) {    var file = new File(path);  return file.exists;
}




isFile : function(path) {
         //How can I check that path is 'file' or 'directory'?         
}

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