Book Image

Mastering Swift

By : Jon Hoffman
Book Image

Mastering Swift

By: Jon Hoffman

Overview of this book

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Table of Contents (22 chapters)
Mastering Swift
Mastering Swift
Credits
Credits
About the Author
About the Author
About the Reviewers
About the Reviewers
www.PacktPub.com
www.PacktPub.com
Preface
Preface
Free Chapter
1
Taking the First Steps with Swift
Taking the First Steps with Swift
What is Swift?
Playgrounds
Swift language syntax
Hello world
Summary
2
Learning about Variables, Constants, Strings, and Operators
Learning about Variables, Constants, Strings, and Operators
Constants and variables
Defining constants and variables
Numeric types
The Boolean type
The string type
Optional variables
Enumerations
Operators
Summary
3
Using Collections and Cocoa Data Types
Using Collections and Cocoa Data Types
Swift collection types
Mutability
Arrays
Dictionaries
Tuples
Using Cocoa data types
Foundation data types
Summary
4
Control Flow and Functions
Control Flow and Functions
What we have learned so far
Control flow
Functions
Summary
5
Classes and Structures
Classes and Structures
What are classes and structures?
Creating a class or structure
Initializer
Inheritance
Overriding methods and properties
Protocols
Extensions
Memory management
Summary
6
Working with XML and JSON Data
Working with XML and JSON Data
XML and JSON
Common files
XML and the NSXMLParser class
Using the NSXMLParserDelegate protocol
Parsing XML documents
XML and manually building XML documents
JSON and NSJSONSerialization
Summary
7
Custom Subscripting
Custom Subscripting
Introducing subscripts
Subscripts with Swift arrays
Read and write custom subscripts
Read only custom subscripts
Calculated subscripts
Subscript values
Subscripts with ranges
External names for subscripts
Multidimensional subscripts
When not to use a custom subscript
Summary
8
Using Optional Type and Optional Chaining
Using Optional Type and Optional Chaining
Introducing optionals
The need for optional types in Swift
Optional chaining
Summary
9
Working with Generics
Working with Generics
Introduction to generics
Generic functions
Generic types
Associated types
Summary
10
Working with Closures
Working with Closures
Introducing closures
Simple closures
Shorthand syntax for closures
Using closures with Swift's array algorithms
Standalone closures and good style guidelines
Changing functionality
Select a closure based on results
Strong reference cycles with closures
Summary
11
Using Mix and Match
Using Mix and Match
What is mix and match?
Using Swift and Objective-C together in the same project
Summary
12
Concurrency and Parallelism in Swift
Concurrency and Parallelism in Swift
Concurrency and parallelism
Summary
13
Swift Formatting and Style Guide
Swift Formatting and Style Guide
What is a programming style guide?
Your style guide
Summary
14
Network Development with Swift
Network Development with Swift
What is network development?
An overview of the URL session classes
REST web services
Making an HTTP GET request
Making an HTTP POST request
Encoding a URL
Checking network connection
RSNetworking
Summary
15
Adopting Design Patterns in Swift
Adopting Design Patterns in Swift
What are design patterns?
Creational patterns
Structural design patterns
Behavioral design patterns
Summary
Index
Index

Chapter 1. Taking the First Steps with Swift

Ever since I was 12 years old and wrote my first program in the basic programming language, programming has been a passion for me. Even as programming became my career, it always remained more of a passion than a job, but over the past few years, that passion has waned. I was unsure why I was losing that passion. I attempted to recapture it with some of my side projects but nothing really brought back the excitement that I used to have. Then, something wonderful happened, Apple announced Swift. Swift is such an exciting and progressive language that it has brought a lot of that passion back and made programming fun for me again.

In this chapter, you will learn:

  • What is Swift?

  • What are some of the features of Swift?

  • What are Playgrounds?

  • How do you use Playgrounds?

  • What are the basic syntaxes of the Swift language?

Previous Section
End of Section 1
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