Functions
Now, it is time to get into a really fun part of programming and learn how to write functions. Functions are self-contained pieces of code that you want to run on something. In Swift 3, Apple has made a change to how you should write functions. All of the functions we will write in this chapter will perform an action (think of verbs). Let's create a simple function called greet()
:
func greet() { print("Hello") }
![Functions](/api/v2/epubs/9781786464507/files/graphics/B05628_02_49.jpg)
This example is a basic function with a print
statement in it. In programming, functions do not actually run until you call them. We call a function simply by calling its name. So, let's call greet
:
greet()
That's it! We just created ...
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