4 Core Principles of Redux

Redux is a predictable state container for JavaScript apps, commonly used with React. It helps manage the state of the application in a predictable manner, making it easier to understand and debug. There are four core principles of Redux that are important to understand when working with it in a React application.

1. Single Source of Truth

In Redux, the state of the entire application is stored in a single object tree within a single store. This makes it easier to keep track of the state and prevents inconsistencies that can arise from having multiple sources of truth for the same data.

2. State is Read-Only

In Redux, the state is read-only and can only be changed through actions. This ensures that the state remains predictable and makes it easier to track changes to the state over time.

3. Changes are Made with Pure Functions

Reducers in Redux are pure functions that take the previous state and an action, and return the new state. This makes it easier to understand how the state is changed and helps prevent unexpected side effects.

4. Changes are Made with Pure Functions

Reducers in Redux are pure functions that take the previous state and an action, and return the new state. This makes it easier to understand how the state is changed and helps prevent unexpected side effects.

Conclusion

Understanding the core principles of Redux is essential for working effectively with it in a React application. By following these principles, developers can build applications with more predictable state management and easier debugging.