* 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>
108 lines
3.2 KiB
Markdown
108 lines
3.2 KiB
Markdown
---
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id: 5a24c314108439a4d4036155
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title: 发送 Action Data 给 Store
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challengeType: 6
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forumTopicId: 301448
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dashedName: send-action-data-to-the-store
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---
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# --description--
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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。
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# --instructions--
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在代码编辑器中定义了一个基础的 `notesReducer()` 和 `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` 的 `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。
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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`
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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。
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# --hints--
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action creator `addNoteText` 应该返回一个包含 `type` 和 `text` 的对象。
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```js
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assert(
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(function () {
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const addNoteFn = addNoteText('__TEST__NOTE');
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return addNoteFn.type === ADD_NOTE && addNoteFn.text === '__TEST__NOTE';
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})()
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);
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```
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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。
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```js
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assert(
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(function () {
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const initialState = store.getState();
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store.dispatch(addNoteText('__TEST__NOTE'));
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const newState = store.getState();
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return initialState !== newState && newState === '__TEST__NOTE';
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})()
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);
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```
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# --seed--
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## --seed-contents--
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```js
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const ADD_NOTE = 'ADD_NOTE';
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const notesReducer = (state = 'Initial State', action) => {
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switch(action.type) {
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// Change code below this line
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// Change code above this line
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default:
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return state;
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}
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};
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const addNoteText = (note) => {
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// Change code below this line
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// Change code above this line
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};
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const store = Redux.createStore(notesReducer);
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console.log(store.getState());
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store.dispatch(addNoteText('Hello!'));
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console.log(store.getState());
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```
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# --solutions--
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```js
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const ADD_NOTE = 'ADD_NOTE';
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const notesReducer = (state = 'Initial State', action) => {
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switch(action.type) {
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// Change code below this line
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case ADD_NOTE:
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return action.text;
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// Change code above this line
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default:
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return state;
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}
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};
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const addNoteText = (note) => {
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// Change code below this line
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return {
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type: ADD_NOTE,
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text: note
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}
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// Change code above this line
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};
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const store = Redux.createStore(notesReducer);
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console.log(store.getState());
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store.dispatch(addNoteText('Hello Redux!'));
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console.log(store.getState());
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```
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