The contents of the file-system node associated with a regular-file file wrapper.
- iOS 4.0+
- macOS 10.0+
- tvOS 9.0+
- watchOS 2.0+
This property may contain
nil if the user modifies the file after you call
init(url: but before
File has read the contents of the file. Use the
immediate reading option to reduce the likelihood of that problem.
This property raises
NSInternal if the file wrapper object is not a regular-file file wrapper.