where redux is used in react js code example

Example 1: what is redux

What is Redux?

Redux is a pattern and library for managing and updating application state, 
using events called "actions". It serves as a centralized store for state 
that needs to be used across your entire application, with rules ensuring 
that the state can only be updated in a predictable fashion.

Example 2: react redux

npx create-react-app my-app --template redux