Learning Swift and Xcode
For the most part, all computer languages perform the typical tasks any computer needs to do—store information, compare information, make decisions about that information, and perform some action based on those decisions. The Swift language makes these tasks easier to understand and accomplish. The real trick with Swift (actually, the trick with most programming languages) is to understand the symbols and keywords used to accomplish those tasks. This chapter continues the examination of Swift and Xcode so you can become even more familiar with them.
As you may know, Swift has not been around for long. Development of the Swift language began about four years ago by Chris Lattner, and on September ...