Generate a UUID on iOS from Swift

Question

In my iOS Swift app I want to generate random UUID (GUID) strings for use as a table key, and this snippet appears to work:

let uuid = CFUUIDCreateString(nil, CFUUIDCreate(nil)) 

Is this safe?

Or is there perhaps a better (recommended) approach?

Answer 1

Try this one:

let uuid = NSUUID().uuidString print(uuid) 

Swift 3/4/5

let uuid = UUID().uuidString print(uuid)