Thread 2, Day 2

Agenda

1. Setup: GIF Scrubber
   • Optionally, install this browser extension for Chrome or Firefox.
   • This allows you to pause, rewind, or fast-forward an animated GIF.
2. Exercise: Optionals
   • Understand how the Swift programming language handles cases where a value may not exist for a variable or constant.
3. Recap: Develop in Swift Tutorials
   • A further opportunity to consolidate concepts learned in module 1, and to learn a few new ways to write apps using the features of Xcode.
   • Chapters 1, 2, and 3 are all good choices to try this week.

     NOTE

     Mr. Gordon was an unpaid technical reviewer for these tutorials; they were authored by a team at Apple.

Things to do before our next class

• Be certain to complete at least task #2, asking questions of Mr. Gordon as needed.
• Optionally, get started on task #3 to further your understanding.