Basics: Tuples

Are particularly useful as the return values of functions.

Are useful for temporary groups of related values.

Let http404Error = (404, "Not Found")
// http404Error is of type (Int, String), and equals (404, "Not Found")

Let (statusCode, statusMessage) = http404Error
print("The status code is \(statusCode)")
// Prints "The status code is 404"
print("The status message is \(statusMessage)")
// Prints "The status message is Not Found"

Let (justTheStatusCode, _) = http404Error
print("The status code is \(justTheStatusCode)")
// Prints "The status code is 404"

let http200Status = (statusCode: 200, description: "OK")
Print("The status code is \(http404Error.0)")
// Prints "The status code is 404"
print("The status message is \(http404Error.1)")
// Prints "The status message is Not Found"

Additional information

Group multiple values into a single compound value.
The values within a tuple can be of any type and don’t have to be of the same type as each other.
You can create tuples from any permutation of types, and they can contain as many different types as you like.

Basics: Tuples

Additional information

Basics: Tuples — Structure map

Basics: Tuples — Related pages:

The Basics