Files
freeCodeCamp/curriculum/challenges/chinese/03-front-end-libraries/bootstrap/add-id-attributes-to-bootstrap-elements.md
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

2.3 KiB

id, title, challengeType, forumTopicId, dashedName
id title challengeType forumTopicId dashedName
bad87fee1348bd9aec908853 给 Bootstrap 元素添加id属性 0 16639 add-id-attributes-to-bootstrap-elements

--description--

回忆一下,除了可以给元素添加 class 属性,我们还可以给元素设置 id 属性。

每个指定元素的 id 都是唯一的,并且在每个页面中都只能使用一次。

让我们为每个 class 为 welldiv 元素添加一个唯一的 id。

记住,你可以这样给一个元素设置 ID。

<div class="well" id="center-well">

把左边 well 的 ID 设置为 left-well。右边的 well 的 ID 设置为 right-well

--hints--

把左边的 well 的 ID 设置为 left-well

assert(
  $('.col-xs-6').children('#left-well') &&
    $('.col-xs-6').children('#left-well').length > 0
);

把右边的 well 的 ID 设置为 right-well

assert(
  $('.col-xs-6').children('#right-well') &&
    $('.col-xs-6').children('#right-well').length > 0
);

--seed--

--seed-contents--

<div class="container-fluid">
  <h3 class="text-primary text-center">jQuery Playground</h3>
  <div class="row">
    <div class="col-xs-6">
      <div class="well">
        <button class="btn btn-default target"></button>
        <button class="btn btn-default target"></button>
        <button class="btn btn-default target"></button>
      </div>
    </div>
    <div class="col-xs-6">
      <div class="well">
        <button class="btn btn-default target"></button>
        <button class="btn btn-default target"></button>
        <button class="btn btn-default target"></button>
      </div>
    </div>
  </div>
</div>

--solutions--

<div class="container-fluid">
  <h3 class="text-primary text-center">jQuery Playground</h3>
  <div class="row">
    <div class="col-xs-6">
      <div class="well" id="left-well">
        <button class="btn btn-default target"></button>
        <button class="btn btn-default target"></button>
        <button class="btn btn-default target"></button>
      </div>
    </div>
    <div class="col-xs-6">
      <div class="well" id="right-well">
        <button class="btn btn-default target"></button>
        <button class="btn btn-default target"></button>
        <button class="btn btn-default target"></button>
      </div>
    </div>
  </div>
</div>