Although these keywords are NOT new to Swift, they are almost always used when using Swift Concurrency. In the following videos in this playlist, we will use Do, Catch, Try, and Throws in every single video! Therefore, it's only logical to iron-out any confusion around these keywords before getting into the heart of this playlist. In this video, we learn about Do-Catch blocks, the difference between Try, Try? and Try!, and what it means to Throw an error in Swift! Next video: https://www.youtube.com/watch?v=9fXI6o39jLQ Previous video: https://www.youtube.com/watch?v=p6q1RmYUsNU