Singleton Pattern Table of Contents - When to Use - When NOT to Use - Instructions - Details - Source Singletons are classes which can be instantiated once, and can be accessed globally. This single instance can be shared throughout our application, which makes Singletons great for managing global state in an application. When to Use - Use this when you need exactly one instance of a class shared across the entire application - This is helpful for managing global state, configuration, or shared resources When NOT to Use - When you need multiple instances of a class — singletons enforce a sing…