Summary

In this chapter, we learned about how Playgrounds is an interactive coding environment. In Playgrounds, we worked our way through the basics starting with data types and variables. We moved on to type safety and type inference along with operations and if-statements. Finally, we discussed the power of optionals and learned about what functions are and how to use them. In the next chapter, we will move on to some more Swift basics before we start building out our Let's Eat app.