How to generate a random identifier using UUID
Swift version: 5.6
A UUID is a universally unique identifier, which means if you generate a UUID right now using UUID it's guaranteed to be unique across all devices in the world. This means it's a great way to generate a unique identifier for users, for files, or anything else you need to reference individually – guaranteed.
Here's how to create a UUID as a string:
let uuid = UUID().uuidString
SPONSORED Fernando's book will guide you in fixing bugs in three real, open-source, downloadable apps from the App Store. Learn applied programming fundamentals by refactoring real code from published apps. Hacking with Swift readers get a $10 discount!
Sponsor Hacking with Swift and reach the world's largest Swift community!
Available from iOS 6.0
Similar solutions…
- Fixing "Unable to dequeue a cell with identifier"
- How to generate shaped random numbers using GKGaussianDistribution
- How to generate fair random numbers using GKShuffledDistribution
- How to fix the error “View controller is unreachable because it has no entry points and no identifier for runtime access”
- How to generate a random number
About the Swift Knowledge Base
This is part of the Swift Knowledge Base, a free, searchable collection of solutions for common iOS questions.
