jQuery - remove elements
Delete elements/content
If you need to delete elements and content, you can generally use the following two jQuery methods:
remove() - Delete the selected element (and its sub-elements)
empty() - Removes child elements from the selected element
remove() method
jQuery remove() method removes the selected element element and its subelements.
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<script src="http://libs.baidu.com/jquery/1.10.2/jquery.min.js">
</script>
<script>
$(document).ready(function(){
$("button").click(function(){
$("#div1").remove();
});
});
</script>
</head>
<body>
<div id="div1" style="height:100px;width:200px;border:1px solid black;background-color:pink;">
你好
<p>你很好</p>
<p>你太好了</p>
</div>
<br>
<button>移除</button>
</body>
</html>empty() method
jQuery empty() method deletes the child elements of the selected element.
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<script src="http://libs.baidu.com/jquery/1.10.2/jquery.min.js">
</script>
<script>
$(document).ready(function(){
$("button").click(function(){
$("#div1").empty();
});
});
</script>
</head>
<body>
<div id="div1" style="height:100px;width:200px;border:1px solid black;background-color:yellow;">
你好
<p>你很好</p>
<p>你太好了</p>
</div>
<br>
<button>清空</button>
</body>
</html>Filter deleted elements
The jQuery remove() method also accepts a parameter, allowing you to filter deleted elements.
This parameter can be any jQuery selector syntax.
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<script src="http://libs.baidu.com/jquery/1.10.2/jquery.min.js">
</script>
<script>
$(document).ready(function(){
$("button").click(function(){
$("p").remove(".italic");
});
});
</script>
</head>
<body>
<p>这是一个段落。</p>
<p class="italic"><i>这是另外一个段落。</i></p>
<p class="italic"><i>这是另外一个段落。</i></p>
<button>移除所有 class="italic" 的 p 元素。</button>
</body>
</html>
new file
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>php中文网(php.cn)</title>
<script src="http://libs.baidu.com/jquery/1.10.2/jquery.min.js"></script>
<script type="text/javascript">
$(function(){
$("input:button").click(function() {
$("input:checkbox:checked").next().nextAll().remove();
});
})
</script>
<style type="text/css">
div.box{width:300px;height:200px;padding:10px 20px;border:4px dashed #ccc;}
div.box>span{color:#999;font-style:italic;}
div.content{width:250px;height:100px;margin:10px 0;border:1px solid green;}
input{margin:10px;}
input[type='button']{width:200px;height:35px;margin:10px;border:2px solid #ebbcbe;}
</style>
</head>
<body>
<div class="box">
<span>点击按钮后，删除被选项目之后的所有选项。</span><br>
<div class="content">
<input type="checkbox" name="item"><span>萝卜</span>
<input type="checkbox" name="item"><span>青菜</span>
<input type="checkbox" name="item"><span>小葱</span><br>
<input type="checkbox" name="item"><span>豆腐</span>
<input type="checkbox" name="item"><span>土豆</span>
<input type="checkbox" name="item"><span>茄子</span><br>
</div>
<input type="button" value="删除">
</div>
</body>
</html>
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