Store :
The entire state of an application lists at a place called Store.
It acts as a brain and manages the status of the application.
It also has a dispatch(action) function.
store is a JavaScript object which can hold the application’s state and provide a few helper methods to access the state, dispatch actions and register listeners.
The entire state/ object tree of an application is saved in a single store.
As a result of this, Redux is very simple and predictable.
We can pass middleware to the store to handle the processing of data as well as to keep a log of various actions that change the state of stores.
All the actions return a new state via reducers.

What is the significance of Store in Redux?
A store is a JavaScript object which can hold the application’s state and provide a few helper methods to access the state, dispatch actions and register listeners.
The entire state/ object tree of an application is saved in a single store.
As a result of this, Redux is very simple and predictable.
We can pass middleware to the store to handle the processing of data as well as to keep a log of various actions that change the state of stores.
All the actions return a new state via reducers.