Tuples

Tuples allow you to store several values together in a single value. That might sound like arrays, but tuples are different:

1. You can’t add or remove items from a tuple; they are fixed in size.
2. You can’t change the type of items in a tuple; they always have the same types they were created with.
3. You can access items in a tuple using numerical positions or by naming them, but Swift won’t let you read numbers or names that don’t exist.

Tuples are created by placing multiple items into parentheses, like this:

var name = (first: "Taylor", last: "Swift")

You then access items using numerical positions starting from 0:

name.0

Or you can access items using their names:

name.first

Remember, you can change the values inside a tuple after you create it, but not the types of values. So, if you tried to change name to be (first: "Justin", age: 25) you would get an error.

SPONSORED Are you tired of wasting time debugging your Swift app? Instabug’s SDK is here to help you minimize debugging time by providing you with complete device details, network logs, and reproduction steps with every bug report. All data is attached automatically, and it only takes a line of code to setup. Start your free trial now and get 3 months off exclusively for the Hacking with Swift Community.

Start your free trial!

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