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freeCodeCamp/curriculum/challenges/chinese/03-front-end-libraries/jquery/clone-an-element-using-jquery.md

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---
id: bad87fee1348bd9aed508826
title: 使用 jQuery 克隆元素
challengeType: 6
forumTopicId: 16780
dashedName: clone-an-element-using-jquery
---
# --description--
除了移动标签,也可以把元素从一个地方复制到另一地方。
jQuery 有一个`clone()`方法,可以复制标签。
例如,如果想把`target2``left-well`复制到`right-well`,可以设置如下:
`$("#target2").clone().appendTo("#right-well");`
你是否注意到这两个 jQuery 方法连在一起了吗?这被称为`链式调用function chaining`,是一种用 jQuery 实现效果的简便方法。
克隆`target5`标签并附加到`left-well`
# --hints--
`target5`标签应该在`right-well`内。
```js
assert($('#right-well').children('#target5').length > 0);
```
克隆`target5`标签并放在`left-well`内。
```js
assert($('#left-well').children('#target5').length > 0);
```
仅用 jQuery 移动这些标签。
```js
assert(!code.match(/class.*animated/g));
```
# --seed--
## --seed-contents--
```html
<script>
$(document).ready(function() {
$("#target1").css("color", "red");
$("#target1").prop("disabled", true);
$("#target4").remove();
$("#target2").appendTo("#right-well");
});
</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--
```html
<script>
$(document).ready(function() {
$("#target1").css("color", "red");
$("#target1").prop("disabled", true);
$("#target4").remove();
$("#target2").appendTo("#right-well");
$("#target5").clone().appendTo("#left-well");
});
</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>
```