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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, title, challengeType, forumTopicId, dashedName
id title challengeType forumTopicId dashedName
5a24c314108439a4d4036145 映射 State 到 Props 6 301433 map-state-to-props

--description--

Provider可向 React 組件提供 statedispatch ,但必須確切地指定所需要的 state 和 actions 以確保每個組件只能訪問所需的 state。 完成這個任務,需要創建兩個函數:mapStateToProps()mapDispatchToProps()

在這兩個函數中,聲明 state 中函數所要訪問的部分及需要 dispatch 的創建 action 的函數。 完成這些,我們就可以迎接下一個挑戰,學習如何使用 React Redux 的 connect 方法來把函數連接到組件了。

注意: 在幕後React Redux 用 store.subscribe() 方法來實現 mapStateToProps()

--instructions--

創建 mapStateToProps() 函數, 以 state 爲參數,然後返回一個對象,該對象把 state 映射到特定屬性名上, 這些屬性能通過 props 訪問組件。 由於此示例把 app 應用的整個狀態保存在單一數組中,可把整個狀態傳給組件。 在返回的對象中創建 messages 屬性,並設置爲 state

--hints--

常量 state 應爲空數組。

assert(Array.isArray(state) && state.length === 0);

mapStateToProps 應爲函數。

assert(typeof mapStateToProps === 'function');

mapStateToProps 應返回一個對象。

assert(typeof mapStateToProps() === 'object');

把 state 數組傳入 mapStateToProps 後應返回賦值給 messages 鍵的數組。

assert(mapStateToProps(['messages']).messages.pop() === 'messages');

--seed--

--seed-contents--

const state = [];

// Change code below this line

--solutions--

const state = [];

// Change code below this line

const mapStateToProps = (state) => {
  return {
    messages: state
  }
};