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.