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.

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TypeScript Design Patterns
Vane
Aug, 2016 | 4 hours 16 minutes
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Table of Contents (10 chapters)
Preface
Preface
What this book covers
What you need for this book
Who this book is for
Conventions
Reader feedback
Customer support
Free Chapter
1
1. Tools and Frameworks
1. Tools and Frameworks
Installing the prerequisites
Choosing a handy editor
Getting your hands on the workflow
Summary
2
2. The Challenge of Increasing Complexity
2. The Challenge of Increasing Complexity
Implementing the basics
Growing features
Getting things right
Summary
3
3. Creational Design Patterns
3. Creational Design Patterns
Factory method
Abstract Factory
Builder
Prototype
Singleton
Summary
4
4. Structural Design Patterns
4. Structural Design Patterns
Composite Pattern
Decorator Pattern
Adapter Pattern
Bridge Pattern
Façade Pattern
Flyweight Pattern
Proxy Pattern
Summary
5
5. Behavioral Design Patterns
5. Behavioral Design Patterns
Chain of Responsibility Pattern
Command Pattern
Memento Pattern
Iterator Pattern
Mediator Pattern
Summary
6
6. Behavioral Design Patterns: Continuous
6. Behavioral Design Patterns: Continuous
Strategy Pattern
State Pattern
Template Method Pattern
Observer Pattern
Visitor Pattern
Summary
7
7. Patterns and Architectures in JavaScript and TypeScript
7. Patterns and Architectures in JavaScript and TypeScript
Promise-based web architecture
Modularizing project
Asynchronous patterns
Summary
8
8. SOLID Principles
8. SOLID Principles
Single responsibility principle
Open-closed principle
Liskov substitution principle
Interface segregation principle
Dependency inversion principle
Summary
9
9. The Road to Enterprise Application
9. The Road to Enterprise Application
Creating an application
Building and testing projects
Version control
Continuous integration
Deployment automation
Summary

Chapter 8. SOLID Principles

SOLID Principles are well-known Object-Oriented Design (OOD)principles summarized by Uncle Bob (Robert C. Martin). The word SOLID comes from the initials of the five principles it refers to, including Single responsibility principle, Open-closed principle, Liskov substitution principle, Interface segregation principle and Dependency inversion principle. Those principles are closely related to each other, and can be a great guidance in practice.

Here is a widely used summary of SOLID principles from Uncle Bob:

  • Single responsibility principle: A class should have one, and only one, reason to change
  • Open-closed principle: You should be able to extend a classes behavior, without modifying it
  • Liskov substitution principle: Derived classes must be substitutable for their base classes
  • Interface segregation principle: Make fine-grained interfaces that are client specific
  • Dependency inversion principle: Depend on abstractions, not on concretions

In this chapter, we...

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