In this very short Swift code example, we will learn how to declare a new function in Swift.
If you are interested in video lessons on how to write Unit tests and UI tests to test your Swift mobile app, check out this page: Unit Testing Swift Mobile App
// Declare a function func sayHelloWorld() { print("Hello World") } // Call function sayHelloWorld()
This was a very short code example. To learn more about functions in Swift have a look at this larger tutorial: Swift functions tutorial.