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Beginning Swift

Beginning Swift

By : Rob Kerr, Kåre Morstøl
4 (1)
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Beginning Swift

Beginning Swift

4 (1)
By: Rob Kerr, Kåre Morstøl

Overview of this book

Take your first foray into programming for Apple devices with Swift.Swift is fundamentally different from Objective-C, as it is a protocol-oriented language. While you can still write normal object-oriented code in Swift, it requires a new way of thinking to take advantage of its powerful features and a solid understanding of the basics to become productive.
Table of Contents (10 chapters)
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Beginning Swift
Beginning Swift
Contributors
Contributors
Preface
Preface
Free Chapter
1
Swift Basics
Swift Basics
Lesson objectives
Swift Program Structure
Swift Variables and Constants
Swift Data Types
Enums
Summary
2
Swift Operators and Control Flow
Swift Operators and Control Flow
Lesson objectives
Swift Operators
Branching
Loops
Summary
3
Functions, Classes, and Structs
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Functions, Classes, and Structs
Lesson Objectives
Functions
Error Handling
Object-Oriented Features
Summary
Challenge
4
Collections
Collections
Lesson Objectives
Arrays
Sets
Dictionaries
Summary
5
Strings
Strings
Lesson Objectives
String Fundamentals
Using Strings
Substring
Summary
6
Functional Programming and Lazy Operations
Functional Programming and Lazy Operations
Lesson Objectives
Function Type
Functional Methods
Lazy Operations
Swifty Code
Summary
Further Study
Challenge
Index
Index

Challenge

We'll tie together a variety of Swift language techniques, giving you additional practice to create structs, functions, data types, and optionals, and use flow control structures.

To solidify your understanding of basic struct and class usage by practicing the creation of each type of object.

  1. Launch Xcode, and create a new playground, then save it to your desktop with the name Activity 5 - Final Activity.playground.

  2. Add the following enum, which will be used to classify customers by gold, silver, and platinum levels. Note that this enum has a rawValue of type String, which we will use while printing customer information:

    enum CustomerType:String {
    case silver = "SILVER"
    case gold = "GOLD"
    case platinum = "PLATINUM"
}

  3. Create a new Customer struct with a set of String variables, including an optional for country and the variable type to classify the customer into one of the CustomerType categories: 

    struct Customer {
    var name: String
  ...
End of Chapter 3
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