Snippet used for showing an example in a blog post about Redux toolkit

redux-toolkit-example.js

import { createAction, createReducer, configureStore } from '@reduxjs/toolkit'

const increment = createAction('INCREMENT')
const decrement = createAction('DECREMENT')

const counter = createReducer(0, {
  [increment]: state => state + 1,
  [decrement]: state => state - 1
})

const store = configureStore({ reducer: counter })