Available since: Gideros 2011.6
Class: io


Checks whether obj is a valid file handle.

(string) = io.type(obj)

Returns the string:

  • "file" if obj is an open file handle
  • "closed file" if obj is a closed file handle
  • nil if obj is not a file handle


obj: (any) object to test

Return values

Returns (string) string representing the state of the object or nil if not file handler