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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
Languages
Tools
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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

JSON

As discussed in the last recipe, almost every app will need to exchange information with the internet at some point and, in that recipe, we retrieved an image from a remote server. Very often your app will need to retrieve more varied data, perhaps relating to the result of a search, or information about shared state held on the server.

This information can be represented in any number of ways, but one of the most common ways is as JSON (JavaScript Object Notation), which is a text-based structure for representing information. A JSON object contains key-value pairs, where the keys are strings, and the values can be strings, numbers, booleans, null, other objects, or arrays.

Consider this example of a JSON objects:

{
"name": {
"givenName": "Keith",
"middleName": "David",
"familyName": "Moon"
...
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