Swift: Developing iOS Applications

Example

Let's take a look at what this looks like in practice. We can use some of the techniques we learned in this chapter to write a different and possibly better implementation of our party inviter.

We can start by defining the same input data:

//: List of people to invite
let invitees = [
    "Sarah",
    "Jamison",
    "Marcos",
    "Roana",
    "Neena",
]

//: Dictionary of shows organized by genre
var showsByGenre = [
    "Comedy": "Modern Family",
    "Drama": "Breaking Bad",
    "Variety": "The Colbert Report",
]

In this implementation, we are making the invitees list, which is just a constant list of names and the shows by genre dictionary variable. This is because we are going to be mapping our invitees list to a list of invitation text. As we do the mapping, we will ...