Files
Shaun Hamilton c2a11ad00d feat: add 'back/front end' in curriculum (#42596)
* chore: rename APIs and Microservices to include "Backend" (#42515)

* fix typo

* fix typo

* undo change

* Corrected grammar mistake

Corrected a grammar mistake by removing a comma.

* change APIs and Microservices cert title

* update title

* Change APIs and Microservices certi title

* Update translations.json

* update title

* feat(curriculum): rename apis and microservices cert

* rename folder structure

* rename certificate

* rename learn Markdown

* apis-and-microservices -> back-end-development-and-apis

* update backend meta

* update i18n langs and cypress test

Co-authored-by: Shaun Hamilton <shauhami020@gmail.com>

* fix: add development to front-end libraries (#42512)

* fix: added-the-word-Development-to-front-end-libraries

* fix/added-the-word-Development-to-front-end-libraries

* fix/added-word-development-to-front-end-libraries-in-other-related-files

* fix/added-the-word-Development-to-front-end-and-all-related-files

* fix/removed-typos-from-last-commit-in-index.md

* fix/reverted-changes-that-i-made-to-dependecies

* fix/removed xvfg

* fix/reverted changes that i made to package.json

* remove unwanted changes

* front-end-development-libraries changes

* rename backend certSlug and README

* update i18n folder names and keys

* test: add legacy path redirect tests

This uses serve.json from the client-config repo, since we currently use
that in production

* fix: create public dir before moving serve.json

* fix: add missing script

* refactor: collect redirect tests

* test: convert to cy.location for stricter tests

* rename certificate folder to 00-certificates

* change crowdin config to recognise new certificates location

* allow translations to be used

Co-authored-by: Nicholas Carrigan (he/him) <nhcarrigan@gmail.com>

* add forwards slashes to path redirects

* fix cypress path tests again

* plese cypress

* fix: test different challenge

Okay so I literally have no idea why this one particular challenge
fails in Cypress Firefox ONLY. Tom and I paired and spun a full build
instance and confirmed in Firefox the page loads and redirects as
expected. Changing to another bootstrap challenge passes Cypress firefox
locally. Absolutely boggled by this.

AAAAAAAAAAAAAAA

* fix: separate the test

Okay apparently the test does not work unless we separate it into
a different `it` statement.

>:( >:( >:( >:(

Co-authored-by: Sujal Gupta <55016909+heysujal@users.noreply.github.com>
Co-authored-by: Noor Fakhry <65724923+NoorFakhry@users.noreply.github.com>
Co-authored-by: Oliver Eyton-Williams <ojeytonwilliams@gmail.com>
Co-authored-by: Nicholas Carrigan (he/him) <nhcarrigan@gmail.com>
2021-08-13 21:57:13 -05:00

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---
id: 5a24c314108439a4d4036155
title: 发送 Action Data 给 Store
challengeType: 6
forumTopicId: 301448
dashedName: send-action-data-to-the-store
---
# --description--
到目前为止,你已经学会了如何将 action dispatch 给 Redux store但到目前为止这些 action 并未包含除 `type`之外的任何信息。 还可以和 action 一起发送特定数据。 事实上,这是非常常见的,因为 action 通常源于一些用户交互,并且往往会携带一些数据, Redux store 经常需要知道这些数据。
# --instructions--
在代码编辑器中定义了一个基础的 `notesReducer()``addNoteText()` action creator。 完成 `addNoteText()` 函数的主体,这样它就会返回一个 `action` 对象。 该对象应该包含一个 `type` 属性,其值为 `ADD_NOTE`,还有一个传入 action creator 的属性为 `text``note` 数据。 当调用 action creator 时,需要传入可以访问该对象的特定笔记信息。
接下来,完成在 `notesReducer()` 中编写的 `switch` 语句。 需要添加一个处理 `addNoteText()` 操作的选项。 如果 action 的类型为 `ADD_NOTE`,就应该触发这个 case并且它应该在传入的 `action` 上返回 `text` 属性作为新的 `state`
这个 action 将在代码底部发送。 一旦完成后,运行代码并观察控制台。 这就是将特定于 action 的数据发送到 store 并在更新 store `state`时使用它所需的全部内容。
# --hints--
action creator `addNoteText` 应该返回一个包含 `type``text` 的对象。
```js
assert(
(function () {
const addNoteFn = addNoteText('__TEST__NOTE');
return addNoteFn.type === ADD_NOTE && addNoteFn.text === '__TEST__NOTE';
})()
);
```
dispatch 一个 action creator 是 `addNoteText` 的action `ADD_NOTE`,应将 `state` 更新为 action creator 传递的字符串。
```js
assert(
(function () {
const initialState = store.getState();
store.dispatch(addNoteText('__TEST__NOTE'));
const newState = store.getState();
return initialState !== newState && newState === '__TEST__NOTE';
})()
);
```
# --seed--
## --seed-contents--
```js
const ADD_NOTE = 'ADD_NOTE';
const notesReducer = (state = 'Initial State', action) => {
switch(action.type) {
// Change code below this line
// Change code above this line
default:
return state;
}
};
const addNoteText = (note) => {
// Change code below this line
// Change code above this line
};
const store = Redux.createStore(notesReducer);
console.log(store.getState());
store.dispatch(addNoteText('Hello!'));
console.log(store.getState());
```
# --solutions--
```js
const ADD_NOTE = 'ADD_NOTE';
const notesReducer = (state = 'Initial State', action) => {
switch(action.type) {
// Change code below this line
case ADD_NOTE:
return action.text;
// Change code above this line
default:
return state;
}
};
const addNoteText = (note) => {
// Change code below this line
return {
type: ADD_NOTE,
text: note
}
// Change code above this line
};
const store = Redux.createStore(notesReducer);
console.log(store.getState());
store.dispatch(addNoteText('Hello Redux!'));
console.log(store.getState());
```