Checks synchronously the file on disk, to know whether the file is externally modified, or has been deleted, and whether the file is read-only.
File doesn't create a [[email protected]] to track those properties, so this function needs to be called instead. Creating lots of [[email protected]]'s would take lots of resources.
Since this function is synchronous, it is advised to call it only on local files. See [[email protected]_local].
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a File. |