Teleology / ts-design

Design Pattern

Typescript implementation of frequently used design Patterns

Key Concepts in Design Patterns

Implementation Method

• Encapsulation
• Inheritance
• Polymorphism

Design Principles

• Single Responsibility
  • one method shouldn't do too much staff
• open for extension but closed for modification
• Least Knowledge,
  • cut down the interaction between classes
• Liskov Substitution Principle
  • use subtypes
• Interface Segregation && Dependence Inversion
  • avoid fat interface
  • Interface-Oriented programming

Contents

• Factory Method
• Singleton

Contents of Each Pattern

• .md for explanation
• .puml is PlantUML file
• .ts Typescript implementations

UML

• 依赖（Dependency): ..>
• 泛化（Generalization): extends --|>
• 实现（Realize): implements ..|>
• 关联（Association）： -->
• 聚合（Aggregation）：
• 组合（Composition）：