When to use as, as!, or as?, how to handle Any, and when you need to use var instead of let even though you don’t change the value.
xattr
Found in some supplementary log files in Sierra only, and contain a UUID which may refer to main log files.
Found in supplementary log files in Sierra and High Sierra only. May contain a UUID reference to main log files.
Attached to log tracev3 files in High Sierra only. Contents and function not known.
Found in Sierra, but seems to have fallen into disuse, and not found in High Sierra.
Found in Sierra, but seems to have fallen into disuse, and not found in High Sierra.
The Finder manages its tags, so changing the label of any tag is immediately reflected in all items using that tag. But what are null tags, and why are they so common?
Details of where and how files and folders store their Finder Tag information. One of the few xattrs intended for the user.
An arbitrary text headline which can be attached by some creators to documents.
Sometimes used by creators to give a description of the file in plain text.
