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Swift 4 Programming Cookbook

You're reading from   Swift 4 Programming Cookbook 50 task-oriented recipes to maximise Swift 4 productivity

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Product type Paperback
Published in Sep 2017
Publisher Packt
ISBN-13 9781786460899
Length 384 pages
Edition 1st Edition
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Author (1):
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Keith Moon Keith Moon
Author Profile Icon Keith Moon
Keith Moon
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Toc

Table of Contents (9) Chapters Close

Preface 1. Swift Building Blocks FREE CHAPTER 2. Building on the Building Blocks 3. Data Wrangling with Swift Control Flow 4. Generics, Operators, and Nested Types 5. Beyond the Standard Library 6. Swift Playgrounds 7. Server-Side Swift 8. Performance and Responsiveness in Swift

Bundling variables into tuples

A tuple is a combination of two or more values that can be treated as one. If you have ever wished you could return more than one value from a function or method, you should find tuples very interesting.

Getting ready

Create a new playground and add the following statement:

import Foundation 

This example uses one function from Foundation. We will delve into Foundation in more detail in Chapter 5, Beyond the Standard Library, but for now, we just need to import it.

How to do it...

Let's say that we are building an app that pulls together...

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