title: Short Random Unique alphanumeric keys similar to Youtube IDs, in Swift
body: <p>Is there a way to create random unique IDs similar to the YouTube IDs in Swift?</p>
  
  <p>I know there are similar answers on this <a href="https://stackoverflow.com/questions/3990820/how-can-i-make-short-random-unique-keys-like-youtube-video-ids-in-php">link</a>, but they are for Php. But I want something in Swift.</p>
  
  <p>I have tried using timestamp and UUIDs, but I want an alphanumeric short keys which would be around 4-10 characters so users can easily share with others verbally.</p>
  
  <p>Thanks.</p>