singleton-pattern

To share global state across a JavaScript app, use the singleton pattern to create a single, globally accessible instance that acts as a single source of truth for your configuration or shared resources.

The singleton pattern is used in software architecture to coordinate actions by ensuring a single shared instance is accessible globally, providing a predictable lifecycle and consistent behavior for shared resources.

Yes, you can use a singleton for configuration management in TypeScript by exporting a frozen singleton instance, which prevents accidental mutations and ensures a single source of truth for your app.

The best way to prevent accidental mutations of shared resources in JavaScript is to export a frozen singleton instance, enforcing a predictable lifecycle and ensuring consistent behavior across the application.

You should not use a singleton for global state when your application requires multiple independent instances of a class, as the pattern strictly enforces a single shared instance and a globally accessible API.