David Sims will give a talk on Optionals and Error Handling in Swift and knowing your ? from your !
We will also have a Q&A session, with the questions posted in advance. You can post your questions on the meetup discussion board (https://www.meetup.com/Limerick-iOS-Development-Meetup/messages/boards/). Other members can 'claim' a question by replying to the thread, and then do an answer on the day.