fileResourceIdentifierKey
The key for the resource’s unique identifier.
Declaration
static let fileResourceIdentifierKey: URLResourceKeyDiscussion
The system returns the read-only value as an id. You can use this identifier to determine equality between file system resources with the isEqual(_:) method. Two resources are equal if they have the same file-system path or if their paths link to the same inode on the same file system.
The value of this identifier isn’t persistent across system restarts.