Thread-Safe Singleton in C#: A Guide to Double-Checked Locking and Lazy ApproachesThe Singleton pattern provides a globally accessible, single instance of a class, enhancing code flexibility and efficiency.
API with NestJS #148. Understanding the injection scopesNestJS default behavior is singleton provider scope for classes, sharing one instance for increased performance.Request scope can be implemented for classes like logged-in-user.service.ts to be initialized per HTTP request.
7 Node.js Design Patterns Every Developer Should KnowThe Facade design pattern simplifies complex subsystems by providing a unified interface.The Singleton pattern ensures that a class has one global instance that can be accessed using a static method.