Design Patterns in depth
Introduction
Design patterns are very popular among software developers. A design pattern is a well-described solution to a common software problem
In the ever-evolving landscape of software development, design patterns act as a constant, that all developers have to know and make acquaintance with. These time-tested patterns offer reusable solutions to common design challenges, empowering developers to craft elegant and robust software. In this comprehensive article, I will try to explain what I consider the top 10 design patterns that every developer should have in their arsenal. For each pattern, I will showcase a real-life example to demonstrate its practical application. Whether you’re an experienced software engineer or somebody who’s just starting, these essential design patterns will elevate your coding skills.
benefits of using design patterns are:
Design patterns are already defined and provide an industry-standard approach to solving a recurring problem, so it saves time if we sensibly use the design pattern. Using design patterns promotes reusability that leads to more robust and highly maintainable code. It helps in reducing the total cost of ownership (TCO) of the software product. Since design patterns are already defined, it makes our code easy to understand and debug. It leads to faster development and new members of the team understand it easily.
Types of design patterns
- Creational:
These patterns are designed for class instantiation. They can be either class-creation patterns or object-creational patterns.
- Structural:
These patterns are designed with regard to a class's structure and composition. The main goal of most of these patterns is to increase the functionality of the class(es) involved, without changing much of its composition.
- Behavioral:
These patterns are designed depending on how one class communicates with others.
Creational Design Patterns
Creational design patterns provide solutions to instantiate an Object in the best possible way for specific situations.
What is Singleton Method Design Pattern?
The Singleton method or Singleton Design pattern is one of the simplest design patterns. It ensures a class only has one instance, and provides a global point of access to it.