by Aidan Finn
Number of pages: 220
Swift is a wonderful language that gives you an easy entry-point into the Apple developer ecosystem. This tutorial walks you through the features of the language while allowing you to leverage your existing programming knowledge to get up-to-speed quickly.
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by Paul Hudson - HackingWithSwift.com
Hacking with Swift is a complete Swift tutorial written for Swift 3 and iOS 10, taking you from beginner to advanced using hands-on projects. Here you can find the 39 Hacking with Swift projects plus the introduction to Swift -all available for free.
by Aidan Finn - aidanf.net
This book is for ruby programmers who are intrigued by swift and want to learn it. It's focused on swift, but in each chapter we'll frame our discussion of swift in terms of equivalent features in ruby and highlight and compare the behaviour of each.
by Wayne Bishop - GitBook
This series provides an introduction to commonly used data structures and algorithms written in a new iOS development language called Swift. With Swift now officially released, its syntax should be familiar enough for most programmers to understand.