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  • Book Overview & Buying Mastering Swift 5.3
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Mastering Swift 5.3

Mastering Swift 5.3

By : Jon Hoffman
3.7 (15)
Buy this Book
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Mastering Swift 5.3

Mastering Swift 5.3

3.7 (15)
By: Jon Hoffman
Buy this Book

Overview of this book

Over the years, Mastering Swift has proven itself among developers as a popular choice for an in-depth and practical guide to the Swift programming language. This sixth edition comes with the latest features, an overall revision to align with Swift 5.3, and two new chapters on building swift from source and advanced operators. From the basics of the language to popular features such as concurrency, generics, and memory management, this in-depth guide will help you develop your expertise and mastery of the language. As you progress, you will gain practical insights into some of the most sophisticated elements in Swift development, including protocol extensions, error handling, and closures. The book will also show you how to use and apply them in your own projects. In later chapters, you will understand how to use the power of protocol-oriented programming to write flexible and easier-to-manage code in Swift. Finally, you will learn how to add the copy-on-write feature to your custom value types, along with understanding how to avoid memory management issues caused by strong reference cycles. By the end of this Swift book, you will have mastered the Swift 5.3 language and developed the skills you need to effectively use its features to build robust applications.
Table of Contents (23 chapters)
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Preface
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Preface
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Who this book is for
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What this book covers
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To get the most out of this book
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Get in touch
1
Taking the First Steps with Swift
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Taking the First Steps with Swift
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What is Swift?
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Swift features
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Playgrounds
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Swift language syntax
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Hello World
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Summary
Free Chapter
2
Swift Documentation and Installing Swift
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Swift Documentation and Installing Swift
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Swift.org
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Swift documentation
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Installing Swift from swift.org
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Building Swift and the Swift toolchain from source
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Using the Swift package manager
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Using the Swift compiler
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Summary
3
Learning about Variables, Constants, Strings, and Operators
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Learning about Variables, Constants, Strings, and Operators
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Constants and variables
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Numeric types
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The Boolean type
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The String type
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Tuples
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Enumerations
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Operators
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Summary
4
Optional Types
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Optional Types
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Introducing optionals
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The need for optional types in Swift
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Defining an optional
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Using optionals
5
Using Swift Collections
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Using Swift Collections
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Swift collection types
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Arrays
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Dictionaries
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Set
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Summary
6
Control Flow
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Control Flow
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What have we learned so far?
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Curly brackets
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Parentheses
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Control flow
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Conditional statements
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Loops
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Using case and where statements with conditional statements and loops
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Control transfer statements
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Summary
7
Functions
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Functions
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Using a single-parameter function
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Using a multi-parameter function
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Defining a parameter's default values
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Returning multiple values from a function
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Adding external parameter names
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Using variadic parameters
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inout parameters
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Omitting argument labels
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Putting it all together
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Summary
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Classes, Structures, and Protocols
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Classes, Structures, and Protocols
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What are classes and structures?
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Value versus reference types
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Creating a class or structure
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Properties
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Methods
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Access controls
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Key-path expressions as functions
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Calling a type as a function
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Inheritance
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Protocols
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Extensions
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Property wrappers
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Optional chaining
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Summary
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Protocols and Protocol Extensions
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Protocols and Protocol Extensions
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Protocols as types
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Polymorphism with protocols
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Typecasting with protocols
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Protocol extensions
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Do I need to use protocols?
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Adopting protocols using a synthesized implementation
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Swift's standard library
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Summary
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Protocol-Oriented Design
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Protocol-Oriented Design
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Requirements
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Object-oriented design
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Protocol-oriented design
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Structures versus classes
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Summary
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Generics
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Generics
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Introducing generics
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Generic functions
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Generic types
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Generic subscripts
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Associated types
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Summary
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Error Handling and Availability
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Error Handling and Availability
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Native error handling
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Catching errors
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Multi-pattern catch clauses
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The availability attribute
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Summary
13
Custom Subscripting
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Custom Subscripting
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Introducing subscripts
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Subscripts with Swift arrays
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Dynamic member lookup
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When not to use a custom subscript
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Summary
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Working with Closures
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Working with Closures
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An introduction to closures
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Simple closures
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Shorthand syntax for closures
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Using closures with Swift arrays
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Changing functionality
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Selecting a closure based on results
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Summary
15
Advanced and Custom Operators
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Advanced and Custom Operators
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Bits and bytes
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Endianness
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Bitwise operators
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Overflow operators
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Operator methods
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Custom operators
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Summary
16
Concurrency and Parallelism in Swift
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Concurrency and Parallelism in Swift
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Concurrency and parallelism
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Grand Central Dispatch (GCD)
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Using the Operation and OperationQueue types
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Summary
17
Custom Value Types
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Custom Value Types
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Value types and reference types
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Implementing the Equatable protocol
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Summary
18
Memory Management
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Memory Management
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How ARC works
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Strong reference cycles
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Summary
19
Swift Formatting and Style Guide
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Swift Formatting and Style Guide
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What is a programming style guide?
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API Design Guide
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Summary
20
Adopting Design Patterns in Swift
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Adopting Design Patterns in Swift
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What are design patterns?
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Creational design patterns
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Structural design patterns
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Behavioral design patterns
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Summary
21
Other Books You May Enjoy
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Other Books You May Enjoy
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Index
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Index

Taking the First Steps with Swift

Ever since I was 12 years old and wrote my first program in BASIC, I have been passionate about programming. Even as I became a professional programmer, programming remained more of a passion than a job, but in the years preceding the first release of Swift, that passion had 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 amazing happened: Apple announced Swift in 2014. Swift is such an exciting and progressive language that it has brought a lot of that passion back for me and made programming fun again. With official versions of Swift available for the Linux and Windows platforms and an unofficial version for the ARM platform, developing with Swift is becoming available to people outside the Apple ecosystem. There are also some very exciting projects using Swift, such as TensorFlow for machine learning and CoreML for IBM Watson. This is an exciting time to be learning the Swift language.

In this chapter, you will learn about the following topics:

  • What is Swift?
  • What are some of the features of Swift?
  • What are playgrounds?
  • How to use playgrounds
  • What are the basic syntaxes of the Swift language?

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