NgRx
NgRx is a reactive state management library for Angular applications, built on top of RxJS and inspired by the Redux pattern. It provides a predictable state container to manage application state in a consistent way, using actions, reducers, and effects to handle data flow and side effects. This helps developers build scalable, maintainable, and testable Angular apps by centralizing state logic.
Developers should learn NgRx when building complex Angular applications with shared state across multiple components, such as enterprise-level dashboards, e-commerce platforms, or real-time collaborative tools. It is particularly useful for managing asynchronous operations, handling side effects like API calls, and ensuring a unidirectional data flow that simplifies debugging and state tracking. Use it in scenarios where state consistency and performance optimization are critical, as it reduces prop drilling and improves component reusability.