Redux is a well-known open-source toolkit for managing state in JavaScript apps. 

It provides a way to centralize the state of an application in a single store, making it easier to debug, test, and reason about the state changes in the application.

 

Redux handles a number of problems that come up in complicated front-end apps: 

• State Management: Keeping track of the application's state in Central place. 
• Predictable State Changes: Data flows in one way for clarity. 
• Debugging: Use Redux DevTools to inspect at the history of the state. 
• Asynchronous Logic: Uses middleware like Redux Thunk/Saga to handle async tasks. 
• Tracking and Undo/Redo: Keeps track of the history of the state for debugging time travel.

 

Use Cases of Redux

• Caching state from a server
• UI State