Viewing github.com/facebook/react/fixtures/nesting/src/store.js

```
import {createStore} from 'redux';
```
```
function reducer(state = 0, action) {
```
```
  switch (action.type) {
```
```
    case 'increment':
```
```
      return state + 1;
```
```
    default:
```
```
      return state;
```
```
  }
```
```
}
```

// Because this file is declared above both Modern and Legacy folders,

// we can import this from either folder without duplicating the object.

export const store = createStore(reducer);