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Oliver Eyton-Williams ee1e8abd87 feat(curriculum): restore seed + solution to Chinese (#40683 )

* feat(tools): add seed/solution restore script

* chore(curriculum): remove empty sections' markers

* chore(curriculum): add seed + solution to Chinese

* chore: remove old formatter

* fix: update getChallenges

parse translated challenges separately, without reference to the source

* chore(curriculum): add dashedName to English

* chore(curriculum): add dashedName to Chinese

* refactor: remove unused challenge property 'name'

* fix: relax dashedName requirement

* fix: stray tag

Remove stray `pre` tag from challenge file.

Signed-off-by: nhcarrigan <nhcarrigan@gmail.com>

Co-authored-by: nhcarrigan <nhcarrigan@gmail.com>

2021-01-12 19:31:00 -07:00

3.2 KiB

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id, title, challengeType, forumTopicId, dashedName

id	title	challengeType	forumTopicId	dashedName
5a24c314108439a4d4036165	使用 React 渲染嵌套组件	6	301420	use-react-to-render-nested-components

--description--

上一个挑战显示了组合两个组件的简单方法，但是有许多不同的方法可以把 React 组件组合在一起。

组件组合是 React 的强大功能之一。当你使用 React 时，应当先用组件的思路考虑清楚用户界面的结构（如上一个挑战中的 App 示例）。可以将 UI 分解为基本的构建块，这些构建块就是组件。这样做有助于将负责 UI 的代码与负责处理应用程序逻辑的代码分开，并可以大大简化复杂项目的开发和维护。

--instructions--

代码编辑器中定义了两个功能组件，分别是TypesOfFruit和Fruits。请把TypesOfFruit组件放到Fruits组件中，然后把Fruits组件放到TypesOfFood组件中。结果应该是子组件嵌套在父组件中，父组件嵌套在它本身的父组件中！

--hints--

TypesOfFood组件应该返回单个div元素。

assert(Enzyme.shallow(React.createElement(TypesOfFood)).type() === 'div');

TypesOfFood组件应该返回Fruits组件。

assert(
  Enzyme.shallow(React.createElement(TypesOfFood)).props().children[1].type
    .name === 'Fruits'
);

Fruits组件应该返回TypesOfFruit组件。

assert(
  Enzyme.mount(React.createElement(TypesOfFood)).find('h2').html() ===
    '<h2>Fruits:</h2>'
);

TypesOfFruit组件应该返回h2和ul元素。

assert(
  Enzyme.mount(React.createElement(TypesOfFood)).find('ul').text() ===
    'ApplesBlueberriesStrawberriesBananas'
);

--seed--

--after-user-code--

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

--seed-contents--

const TypesOfFruit = () => {
  return (
    <div>
      <h2>Fruits:</h2>
      <ul>
        <li>Apples</li>
        <li>Blueberries</li>
        <li>Strawberries</li>
        <li>Bananas</li>
      </ul>
    </div>
  );
};

const Fruits = () => {
  return (
    <div>
      { /* Change code below this line */ }

      { /* Change code above this line */ }
    </div>
  );
};

class TypesOfFood extends React.Component {
  constructor(props) {
    super(props);
  }

  render() {
    return (
      <div>
        <h1>Types of Food:</h1>
        { /* Change code below this line */ }

        { /* Change code above this line */ }
      </div>
    );
  }
};

--solutions--

const TypesOfFruit = () => {
  return (
    <div>
      <h2>Fruits:</h2>
      <ul>
        <li>Apples</li>
        <li>Blueberries</li>
        <li>Strawberries</li>
        <li>Bananas</li>
      </ul>
    </div>
  );
};

const Fruits = () => {
  return (
    <div>
      { /* Change code below this line */ }
        <TypesOfFruit />
      { /* Change code above this line */ }
    </div>
  );
};

class TypesOfFood extends React.Component {
  constructor(props) {
    super(props);
  }

  render() {
    return (
      <div>
        <h1>Types of Food:</h1>
        { /* Change code below this line */ }
        <Fruits />
        { /* Change code above this line */ }
      </div>
    );
  }
};

3.2 KiB Raw Blame History