freeCodeCamp/remove-an-element-using-jquery.md at 873fce02a2d2124f3b76ce3f317fb29b34abb542

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Oliver Eyton-Williams dec409a4bd fix: s/localeTitle/title/g

2020-10-06 23:10:08 +05:30

3.0 KiB

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id, challengeType, forumTopicId, title

id	challengeType	forumTopicId	title
bad87fee1348bd9aed708826	6	18262	使用 jQuery 删除元素

Description

现在学习用 jQuery 从页面移除 HTML 标签。 jQuery 有一个.remove()方法，能完全移除 HTML 标签。请用.remove()方法从页面移除target4标签。

Instructions

Tests

tests:
  - text: 用 jQuery 从页面中移除<code>target4</code>标签。
    testString: assert($("#target4").length === 0 && code.match(/\$\(["']#target4["']\).remove\(\)/g));
  - text: 仅用 jQuery 移除该标签。
    testString: assert(code.match(/id="target4/g) && !code.match(/<!--.*id="target4".*-->/g) && $("#right-well").length > 0);

Challenge Seed

<script>
  $(document).ready(function() {
    $("#target1").css("color", "red");
    $("#target1").prop("disabled", true);

  });
</script>

<!-- 请修改本行以上的代码 -->

<div class="container-fluid">
  <h3 class="text-primary text-center">jQuery Playground</h3>
  <div class="row">
    <div class="col-xs-6">
      <h4>#left-well</h4>
      <div class="well" id="left-well">
        <button class="btn btn-default target" id="target1">#target1</button>
        <button class="btn btn-default target" id="target2">#target2</button>
        <button class="btn btn-default target" id="target3">#target3</button>
      </div>
    </div>
    <div class="col-xs-6">
      <h4>#right-well</h4>
      <div class="well" id="right-well">
        <button class="btn btn-default target" id="target4">#target4</button>
        <button class="btn btn-default target" id="target5">#target5</button>
        <button class="btn btn-default target" id="target6">#target6</button>
      </div>
    </div>
  </div>
</div>

Solution

<script>
  $(document).ready(function() {
    $("#target1").css("color", "red");
    $("#target1").prop("disabled", true);
    $("#target4").remove();
  });
</script>

<!-- Only change code above this line. -->

<div class="container-fluid">
  <h3 class="text-primary text-center">jQuery Playground</h3>
  <div class="row">
    <div class="col-xs-6">
      <h4>#left-well</h4>
      <div class="well" id="left-well">
        <button class="btn btn-default target" id="target1">#target1</button>
        <button class="btn btn-default target" id="target2">#target2</button>
        <button class="btn btn-default target" id="target3">#target3</button>
      </div>
    </div>
    <div class="col-xs-6">
      <h4>#right-well</h4>
      <div class="well" id="right-well">
        <button class="btn btn-default target" id="target4">#target4</button>
        <button class="btn btn-default target" id="target5">#target5</button>
        <button class="btn btn-default target" id="target6">#target6</button>
      </div>
    </div>
  </div>
</div>

3.0 KiB Raw Blame History