2.8 KiB
2.8 KiB
id | title | challengeType | forumTopicId | dashedName |
---|---|---|---|---|
bad87fee1348bd9aed708826 | 使用 jQuery 删除元素 | 6 | 18262 | remove-an-element-using-jquery |
--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。
用 .remove()
方法从页面移除 target4
标签。
--hints--
应该用 jQuery 从页面中移除 target4
标签。
assert(
$('#target4').length === 0 && code.match(/\$\(["']#target4["']\).remove\(\)/g)
);
应该仅用 jQuery 移除该标签。
assert(
code.match(/id="target4/g) &&
!code.match(/<!--.*id="target4".*-->/g) &&
$('#right-well').length > 0
);
--seed--
--seed-contents--
<script>
$(document).ready(function() {
$("#target1").css("color", "red");
$("#target1").prop("disabled", true);
});
</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>
--solutions--
<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>