Review of Design Patterns
1. Introduction
Design patterns are proven solutions to common problems in software design. They provide a template for how to solve a problem in a way that can be reused in different contexts. In front-end architecture, understanding and utilizing design patterns can lead to more maintainable, scalable, and efficient applications.
2. Key Concepts
- Design Pattern: A general repeatable solution to a common problem in software design.
- Architectural Pattern: A high-level pattern that defines the overall structure and organization of a software system.
- Anti-pattern: A common response to a recurring problem that is usually ineffective and counterproductive.
3. Types of Design Patterns
Creational Patterns
These patterns deal with object creation mechanisms.
- Singleton
- Factory Method
- Abstract Factory
Structural Patterns
These patterns deal with object composition.
- Adapter
- Decorator
- Facade
Behavioral Patterns
These patterns deal with object interaction and responsibility.
- Observer
- Strategy
- Command
4. Best Practices
- Understand the problem before selecting a pattern.
- Keep patterns simple and understandable.
- Document the use of design patterns in your codebase.
5. FAQ
What is a design pattern?
A design pattern is a general repeatable solution to a commonly occurring problem in software design.
When should I use a design pattern?
Use a design pattern when you encounter a problem that matches a pattern you know. Patterns help you avoid reinventing the wheel.
Are design patterns language-specific?
No, design patterns are not tied to any programming language. They can be implemented in various languages.