The entire state of the application is stored in an object called Redux Store. We can create a Redux Store using the `configureStore` function imported from `@reduxjs/toolkit`:

```js
import { configureStore } from '@reduxjs/toolkit';
const store = configureStore({ reducer: counterReducer });
```

In the `configureStore` function we pass an object containing at least one reducer. The `store` is a reference to the create store. We can access the object containing the state data using the `getState` method:

```js
console.log(store.getState())
// {countValue: 7}
```

Select the correct code for creating a Redux Store with a reducer called `todoReducer`.

In this section we will learn what Redux is, why it is useful, and most importantly when it is useful. We will also learn how to set up a basic react-redux application.

In this section we will go through the fundamental concepts of Redux that are necessary to understand the workings of a Redux application. We will use code examples to understand the concepts and in the following section we will use them practically.

In the previous section we looked at the basic concepts. In this section we use those basic concepts to understand some more complicated concepts and the structure of a Redux application. In the end we will also look at the Counter application to put together all the pieces of our knowledge together.

This chapter is focused on practice hence we will utilize the knowledge we acquired in previous sections to create a practical application using Redux along with React.