Io.type

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Available since: Gideros 2011.6
Class: io

Description

Checks whether obj is a valid file handle. Returns the string "file" if obj is an open file handle, "closed file" if obj is a closed file handle, or nil if obj is not a file handle.

(string) = io.type(obj)

Parameters

obj: (any) object to test

Return values

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