FREE TRIAL: Accelerate your app development career with Hacking with Swift+! >>


Complex data types, part 1

Today we’re going to look at some more complex data types that group data together. Understanding the differences between them, and especially knowing which to use and when, can sometimes trip folks up when they are learning – as Joseph Campbell once said, “computers are like Old Testament gods: lots of rules and no mercy.”

Don’t worry, though: you’ll find that the three types we’re learning today cover the overwhelming majority of requirements you’ll need for grouping data, and if you choose the wrong one when you’re learning then nothing bad is going to happen.

In fact, a common mistake folks make while learning is they have a fear of running their code. Trust me on this: while you’re following all the code here, none of the code you write can somehow break your computer. So, make a change and run it. Make another change and run that. Just try changing your values until you feel comfortable with what’s happening – it all helps.

Today you have four tutorials to follow, and you’ll meet things like arrays, dictionaries, sets, and more. After watching each video you’re welcome to go through some optional extra reading if you want extra clarification on a topic, and there are some short tests to help make sure you’ve understood what was taught.

  1. How to store ordered data in arrays
  2. How to store and find data in dictionaries
  3. How to use sets for fast data lookup
  4. How to create and use enums

You’ve finished day three now, and you’re starting to write useful Swift code – make sure to tell the world about your progress!

Need help? Tweet me @twostraws!


Hacking with Swift is sponsored by Essential Developer

SPONSORED Join a FREE crash course for iOS devs who want to become complete senior developers — from October 18th to 24th. Learn how to apply iOS app architecture patterns through a series of lectures and practical coding sessions.

Learn more

Sponsor Hacking with Swift and reach the world's largest Swift community!

100 Days of SwiftUI

The 100 Days of SwiftUI is a free collection of videos, tutorials, tests, and more to help you learn SwiftUI faster. Click here to learn more, or watch the video below.

Back to 100 Days of SwiftUI

Unknown user

You are not logged in

Log in or create account

Link copied to your pasteboard.