---
id: 5a24c314108439a4d4036157
title: Write a Counter with Redux
challengeType: 6
isRequired: false
videoUrl: ''
localeTitle: ''
---
## Description
undefined
## Instructions
undefined
## Tests
```yml
tests:
- text: يجب أن يقوم incAction منشئ الإجراء بإرجاع كائن تصرف type يساوي قيمة INCREMENT
testString: 'assert(incAction().type ===INCREMENT, "The action creator incAction should return an action object with type equal to the value of INCREMENT");'
- text: ''
testString: 'assert(decAction().type === DECREMENT, "The action creator decAction should return an action object with type equal to the value of DECREMENT");'
- text: ''
testString: 'assert(store.getState() === 0, "The Redux store should initialize with a state of 0.");'
- text: ''
testString: 'assert((function() { const initialState = store.getState(); store.dispatch(incAction()); const incState = store.getState(); return initialState + 1 === incState })(), "Dispatching incAction on the Redux store should increment the state by 1.");'
- text: ''
testString: 'assert((function() { const initialState = store.getState(); store.dispatch(decAction()); const decState = store.getState(); return initialState - 1 === decState })(), "Dispatching decAction on the Redux store should decrement the state by 1.");'
- text: ''
testString: 'assert(typeof counterReducer === "function", "counterReducer should be a function");'
```
## Challenge Seed
```jsx
const INCREMENT = null; // define a constant for increment action types
const DECREMENT = null; // define a constant for decrement action types
const counterReducer = null; // define the counter reducer which will increment or decrement the state based on the action it receives
const incAction = null; // define an action creator for incrementing
const decAction = null; // define an action creator for decrementing
const store = null; // define the Redux store here, passing in your reducers
```
## Solution
```js
// solution required
```