The Singleton design pattern is one of the most widely used creational design patterns. It ensures that a class has only one instance while providing a global point of access to it. This is particularly useful when exactly one object is needed to coordinate actions across the system. In this blog post, we will explore the Singleton pattern in C#, understand why it’s useful, and review various implementations including thread safety and the usage of the Lazy<T> class. We will also look at how each of these approaches works with example code. Why Use the Singleton Pattern? The primary purpose of the Singleton pattern is to control object creation by limiting the number of instances to just one. Some of the common use cases include: Configuration management: A centralized configuration object that needs to be accessed across different parts of the application. Logging: Logging systems should have a single instance for maintaining a consistent log throughout the application. C...
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