Swift: Developing iOS Applications

Summary

In this chapter, we have developed a great basis for Swift knowledge. We have learned about the various built-in mechanisms Swift has for representing complex information in expressive and accessible ways. We know that, by default, we should declare information as a constant until we find a practical need to change it, and then we should make it a variable. We have explored how every piece of information in Swift has a type associated with it by the compiler, whether it is through type inference or declared explicitly. We are familiar with many of the built-in types, including simple types like String, Int, and Bool as well as containers like tuples, arrays, and dictionaries. We can use the console output to better investigate our programs, ...