如何使用 jQuery 将元素附加到其他元素之前?
jqueryweb developmentfront end technology
要将元素附加到其他元素之前，请使用 insertBefore() 方法。insertBefore( 选择器) 方法会将所有匹配的元素插入到另一组指定的元素之前。
示例
<html>
<head>
<title>The jQuery Example</title>
<script src = "https://ajax.googleapis.com/ajax/libs/jquery/2.1.3/jquery.min.js"></script>
<script>
$(document).ready(function() {
$("div").click(function () {
$("#source").insertBefore(this);
});
});
</script>
<style>
.div {
margin:10px;
padding:12px;
border:2px solid #666;
width:60px;
}
</style>
</head>
<body>
<p>Click on any square below to see the result:</p>
<div class = "div" style = "background-color:blue;"></div>
<div class = "div" style = "background-color:green;"></div>
<div class = "div" style = "background-color:red;"></div>
<div class = "div" id = "source"></div>
</body>
</html>
