Book Image

TypeScript Design Patterns

By : Vane
Book Image

TypeScript Design Patterns

By: Vane

Overview of this book

In programming, there are several problems that occur frequently. To solve these problems, there are various repeatable solutions that are known as design patterns. Design patterns are a great way to improve the efficiency of your programs and improve your productivity. This book is a collection of the most important patterns you need to improve your applications’ performance and your productivity. The journey starts by explaining the current challenges when designing and developing an application and how you can solve these challenges by applying the correct design pattern and best practices. Each pattern is accompanied with rich examples that demonstrate the power of patterns for a range of tasks, from building an application to code testing. We’ll introduce low-level programming concepts to help you write TypeScript code, as well as work with software architecture, best practices, and design aspects.
Table of Contents (15 chapters)
TypeScript Design Patterns
Credits
About the Author
About the Reviewer
www.PacktPub.com
Preface

Chapter 5. Behavioral Design Patterns

As the name suggests, behavioral design patterns are patterns about how objects or classes interact with each other. The implementation of behavioral design patterns usually requires certain data structures to support the interaction in a system. However, behavioral patterns and structural patterns focus on different aspects when applied. As a result, you might find patterns in the category of behavioral design patterns usually have simpler or more straightforward structures compared to structural design patterns.

In this chapter, we are going to talk about some of the following common behavioral patterns:

  • Chain of Responsibility: Organizes behaviors with different scopes

  • Command: Exposes commands from the internal with encapsulated context

  • Memento: Provides an approach for managing states outside of their owners without exposing detailed implementations

  • Iterator: Provides a universal interface for traversing

  • Mediator: It groups coupling and logically...