Redux is a JavaScript library designed by Dan Abramov, which helps in containerization of the states for the JavaScript applications. As the application grows, the complexity rises due to the requirement of the back and forth state updatability between the model and the view. Redux came to the rescue to solve this crooked complex path of state mutation and asynchronism. Thus, it defines itself as an attempt to make predictable state mutations.
It can be used with React or any other view library. Some of the key points to be remembered while using Redux are as follows:
The state of the JavaScript application is stored entirely inside the same object tree inside a single store. Thus, even when the application grows, it's easier to debug. The development phase is also faster as the entire application state is in one place. The state is read only; there are only getters in the state and no setters as you are unable to write to this store.