We covered a lot in this chapter. We are now comfortable with using collections. Now that you are familiar with arrays, dictionaries, and sets, take the time to practice and work with them as much as you can. Collections are used a lot in programming, so getting comfortable is very important.

Even though we will touch on these things throughout the creation of the Let's Eat app, it is best to make sure that you are comfortable with what we covered here. So, please review the material as often as is necessary to make sure you feel that you are proficient in the topics contained in this chapter.

In the next chapter, we will start building our Let's Eat app. Over the next two chapters, we will work on getting our project set up, and then we will begin working on the visual aspects of our app.