Author: Zen and the Art of Computer Programming
1 Introduction
Overview
In terms of design patterns, the Swift community has made a lot of contributions, such as the famous Swift Design Pattern Library and the famous Swift Design Pattern Manual. It also includes some practical examples of design patterns. For software engineers, mastering design patterns is of great help to them in developing applications, modularizing applications, extending functions, and maintaining code. Of course, many companies will ask questions related to design patterns during interviews. Therefore, this article will discuss the concept and application of design patterns, understand and practice them from a macro perspective.
The main reader group of this article
- Software engineers who have a strong interest in software design patterns or have certain experience
- Students and white-collar workers who are about to become or are preparing to become developers or architects
- People interested in learning about design patterns
Features of this article
This article will analyze the seven most important patterns in design patterns and combine them with the characteristics of the Swift language for in-depth explanation and practice. The writing of the article strives to be easy to understand, paying special attention to the explanation of knowledge, and also uses some practical examples to strengthen the understanding of these theories. I hope that through this article, everyone can have a deeper understanding of design patterns and their applications, and can more easily apply them to their own work.
Table of contents
1. What is a design pattern?
1.1 Definition of pattern
Design pattern (Design pattern) is a set of code design specifications that are used repeatedly, are known to most people, and are classified and cataloged. It advocates looking for common problems in software design and setting interfaces between classes that cooperate with each other. In this way, design patterns make software systems reusable, scalable, and maintainable.
1.2 Why should we learn design patterns?
By reading this article, you can