code: function(name, fullPath, fileSystem) {
       DirectoryEntry.__super__.constructor.call(this, false, true, name, fullPath, fileSystem);
  }
docs: An interface representing a directory on the file system.
  
  {boolean} isFile always false (readonly)
  {boolean} isDirectory always true (readonly)
  {DOMString} name of the directory, excluding the path leading to it (readonly)
  {DOMString} fullPath the absolute full path to the directory (readonly)
  {FileSystem} filesystem on which the directory resides (readonly)