提升 TypeScript 应用性能：设计模式实战指南

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《TypeScript设计模式》是一本深入浅出的指南，由经验丰富的JavaScript工程师Vilic Vane编著，专注于在TypeScript中实践各种关键设计模式。本书是市场上唯一专注于TypeScript设计模式的权威文档，旨在帮助开发者提升应用程序性能和开发效率。书中详述了在编程中常见的问题和解决方法，通过讲解设计模式，如工厂模式、结构化模式（如单例、工厂方法等）和行为模式（策略、观察者等），作者引导读者理解企业级应用开发中的挑战，并演示如何通过正确的设计模式和最佳实践来应对。每个模式都配以丰富的例子，从基础概念如低层次编程到软件架构、测试策略等，全方位展示其在构建和测试应用中的实际应用。学习本书，你将掌握以下内容： 1. **企业应用开发挑战与解决方案**：了解开发过程中可能遇到的问题及其影响，并学习如何选择合适的模式。 2. **工具与框架安装配置**：学会安装和配置必要的开发环境，以便开始项目。 3. **GoF模式应用**：理解并运用Gang of Four (GoF) 设计模式，包括测试驱动的方法。 4. **TypeScript与JavaScript模式**：在两种语言中灵活运用设计模式。 5. **SOLID原则**：理解和应用单一职责原则（Single Responsibility Principle）、开闭原则（Open-Closed Principle）、里氏替换原则（Liskov Substitution Principle）、接口隔离原则（Interface Segregation Principle）和依赖倒置原则（Dependency Inversion Principle），提高代码质量。 6. **企业级应用开发路径**：遵循这些原则，提升开发速度和项目的整体架构。作者Vilic Vane凭借8年以上的Web开发经验，不仅是TypeScript的追随者，也是该项目的贡献者，他的实战经验和深厚技术背景使本书内容更具实用性。全书共分九章，涵盖了从基础工具和框架到复杂应用设计的全面内容，适合所有希望提升TypeScript编程技能的开发者阅读。同时，这本书强调版权保护，确保了内容的合法性和准确性。

Preface

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intelligence part involve the true value of our work?

We might all have had trouble finding clues to mysterious bugs, or squeezed our head

thinking about how we can add new features to the existing code base. Some of us, with

experience and intuition built over the years, may directly come up with a design that’s not

bad. For these people, getting through the common design patterns can help gain

knowledge of what people have already catalogued over years in the industry or be better

understood when discussing software designs with others. For people who have less

experience, learning common design patterns may be a more straightforward approach to

creating code that’s beautifully designed.

What this book covers

Chapter 1, Tools and Frameworks, provides a brief introduction to tools and frameworks that

will be used through this book, including installing a TypeScript compiler, preparing an

editor, and a basic workflow.

Chapter 2, The Challenge of Increasing Complexity, starts with a simple server-client

synchronizing implementation; we then expand its features and see how things can gain

undesired complexity and how that complexity can be reduced.

Chapter 3, Creational Design Patterns, catalogs five common creational design patterns, the

Factory Method, Abstract Factory, Builder, Prototype, and Singleton patterns.

Chapter 4, Structural Design Patterns, catalogs seven common structural design patterns, the

Composite, Decorator, Adapter, Bridge, Façade, Flyweight, and Proxy patterns.

Chapter 5, Behavioral Design Patterns, catalogs five common behavioral design patterns, the

Chain of Responsibility, Command, Memento, Iterator, and Mediator patterns.

Chapter 6, Behavioral Design Patterns: Continuous, catalogs another four common behavioral

design patterns, the Strategy, State, Template Method, Observer, and Visitor patterns.

Chapter 7, Patterns and Architectures in JavaScript and TypeScript, takes a look at the patterns

and architectures that closely relate to the language (JavaScript or TypeScript) and its

application, including asynchronous programming, module organization, error handling,

permission abstraction, and so on.

Chapter 8, SOLID Principles, explains the well-known SOLID principles and how they can

benefit a project and keep it healthy over time.

Chapter 9, The Road to Enterprise Application, guides readers to build the complete workflow

of an application that is ready to scale, including testing and continuous integration.

Preface
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