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freeCodeCamp/curriculum/challenges/chinese/03-front-end-libraries/redux/get-state-from-the-redux-store.md
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Co-authored-by: Randell Dawson <5313213+RandellDawson@users.noreply.github.com>

Co-authored-by: Crowdin Bot <support+bot@crowdin.com>
Co-authored-by: Nicholas Carrigan (he/him) <nhcarrigan@gmail.com>
Co-authored-by: Randell Dawson <5313213+RandellDawson@users.noreply.github.com>
2021-03-05 07:43:24 -08:00

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---
id: 5a24c314108439a4d403614c
title: 从 Redux Store 获取状态
challengeType: 6
forumTopicId: 301443
dashedName: get-state-from-the-redux-store
---
# --description--
Redux store 对象提供了几种与之交互的方法, 比如,可以使用 `getState()` 方法检索 Redux store 对象中保存的当前 `state`
# --instructions--
在代码编辑器中可以将上一个挑战中的代码更简洁地重写, 在 `store` 中使用 `store.getState()` 检索`state`,并将其分配给新变量 `currentState`
# --hints--
Redux store 的 state 应该有一个初始值 5。
```js
assert(store.getState() === 5);
```
应该存在一个变量 `currentState`,并为其分配 Redux store 的当前状态。
```js
(getUserInput) =>
assert(
currentState === 5 && getUserInput('index').includes('store.getState()')
);
```
# --seed--
## --seed-contents--
```js
const store = Redux.createStore(
(state = 5) => state
);
// Change code below this line
```
# --solutions--
```js
const store = Redux.createStore(
(state = 5) => state
);
// Change code below this line
const currentState = store.getState();
```