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

1.4 KiB

Raw Blame History

id, title, challengeType, forumTopicId, dashedName

id	title	challengeType	forumTopicId	dashedName
587d7fa6367417b2b2512bc3	用 D3 选择一组元素	6	301490	select-a-group-of-elements-with-d3

--description--

selectAll() 方法选择一组元素。它以 HTML 节点数组的形式返回该文本中所有匹配所输入字符串的对象。以下是一个选择文本中所有锚标签的例子：

const anchors = d3.selectAll("a");

像 select() 方法一样，selectAll() 也支持链式调用，你可以在它之后调用其他方法。

--instructions--

选择所有的 li 标签，通过 .text() 方法将它的文本改为 "list item" 。

--hints--

页面上应该有 3 个 li 元素，每个元素的文本内容应为 'list item'。大小写和空格必须一致。

assert(
  $('li')
    .text()
    .match(/list item/g).length == 3
);

你应该能访问 d3 的对象。

assert(code.match(/d3/g));

你应该使用 selectAll 方法。

assert(code.match(/\.selectAll/g));

--seed--

--seed-contents--

<body>
  <ul>
    <li>Example</li>
    <li>Example</li>
    <li>Example</li>
  </ul>
  <script>
    // Add your code below this line



    // Add your code above this line
  </script>
</body>

--solutions--

<body>
  <ul>
    <li>Example</li>
    <li>Example</li>
    <li>Example</li>
  </ul>
  <script>
    d3.selectAll("li")
      .text("list item")
  </script>
</body>

1.4 KiB Raw Blame History