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Learning Swift Second Edition

Learning Swift Second Edition

By : Andrew J Wagner
5 (1)
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Learning Swift Second Edition

Learning Swift Second Edition

5 (1)
By: Andrew J Wagner

Overview of this book

Swift is Apple’s new programming language and the future of iOS and OS X app development. It is a high-performance language that feels like a modern scripting language. On the surface, Swift is easy to jump into, but it has complex underpinnings that are critical to becoming proficient at turning an idea into reality. This book is an approachable, step-by-step introduction into programming with Swift for everyone. It begins by giving you an overview of the key features through practical examples and progresses to more advanced topics that help differentiate the proficient developers from the mediocre ones. It covers important concepts such as Variables, Optionals, Closures, Generics, and Memory Management. Mixed in with those concepts, it also helps you learn the art of programming such as maintainability, useful design patterns, and resources to further your knowledge. This all culminates in writing a basic iOS app that will get you well on your way to turning your own app ideas into reality.
Table of Contents (14 chapters)
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13
Index

Structural patterns


Structural patterns are patterns that describe how objects should relate to each other so that they can work together to achieve a common goal. They help us lower our coupling by suggesting an easy and clear way to break down a problem into related parts and they help raise our cohesion by giving us a predefined way that those components will fit together.

This is like a sports team defining specific roles for each person on the field so that they can play together better as a whole.

Composite

The first structural pattern we are going to look at is called the composite pattern. The concept of this pattern is that you have a single object that can be broken down into a collection of objects just like itself. This is like the organization of many large companies. They will have teams that are made up of smaller teams, which are then made up of even smaller teams. Each sub-team is responsible for a small part and they come together to be responsible for a larger part of the...

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