Files
freeCodeCamp/curriculum/challenges/chinese-traditional/03-front-end-development-libraries/react/add-inline-styles-in-react.md
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
5a24c314108439a4d4036182 在 React 中添加內聯樣式 6 301378 add-inline-styles-in-react

--description--

在上一次挑戰中,你可能已經注意到,除了設置爲 JavaScript 對象的 style 屬性之外,與 HTML 內聯樣式相比React 的內聯樣式還有其他幾個語法差異。 首先,某些 CSS 樣式屬性的名稱使用駝峯式命名。 例如,最後一個挑戰用 fontSize 而不是 font-size 來設置字體的大小。 對於 JavaScript 對象屬性來說,像 font-size 這樣的連字符命名是無效的語法,所以 React 使用駝峯式命名。 通常,任何連字符的 style 屬性在 JSX 中都是使用駝峯式命名的。

除非另有規定,否則所有屬性值的 lengthheightwidthfontSize)其單位都假定爲 px。 例如,如果要使用 em,可以用引號將值和單位括起來,例如 {fontSize: "4em"}。 除了默認爲 px 的 length 值之外,所有其他屬性值都應該用引號括起來。

--instructions--

如果你有大量樣式,你可以將樣式 object(對象)分配給一個常量,以保持代碼的組織有序。 在文件頂部將你的樣式聲明爲全局變量。 定義一個 styles 常量,並將其聲明爲具有三個樣式屬性及對應值的 object(對象)。 使 div 的文字顏色爲 purple、字號爲 40、邊框爲 2px solid purple。 然後設置 style 屬性,使其等於 styles 常量。

--hints--

styles 變量應該是具有三個屬性的 object(對象)。

assert(Object.keys(styles).length === 3);

styles 變量的 color 屬性應該設置爲 purple

assert(styles.color === 'purple');

styles 變量應該將 fontSize 屬性設置爲 40

assert(styles.fontSize === 40);

styles 變量的 border 屬性應該設置爲 2px solid purple

assert(styles.border === '2px solid purple');

組件應該渲染一個 div 元素。

assert(
  (function () {
    const mockedComponent = Enzyme.shallow(React.createElement(Colorful));
    return mockedComponent.type() === 'div';
  })()
);

div 元素的樣式應該由 styles 對象定義。

assert(
  (function () {
    const mockedComponent = Enzyme.shallow(React.createElement(Colorful));
    return (
      mockedComponent.props().style.color === 'purple' &&
      mockedComponent.props().style.fontSize === 40 &&
      mockedComponent.props().style.border === '2px solid purple'
    );
  })()
);

--seed--

--after-user-code--

ReactDOM.render(<Colorful />, document.getElementById('root'))

--seed-contents--

// Change code above this line
class Colorful extends React.Component {
  render() {
    // Change code below this line
    return (
      <div style={{color: "yellow", fontSize: 24}}>Style Me!</div>
    );
    // Change code above this line
  }
};

--solutions--

const styles = {
  color: "purple",
  fontSize: 40,
  border: "2px solid purple"
};
// Change code above this line
class Colorful extends React.Component {
  render() {
    // Change code below this line
    return (
      <div style={styles}>Style Me!</div>
    );
    // Change code above this line
  }
};