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JavaScript--DOM

  • append()向每个匹配的元素内部追加内容
  • prepend()向每个匹配的元素内部前置内容
  • appendTo()把所有匹配的元素追加到另一个指定元素的集合中
  • prependTo()把所有匹配的元素前置到另一个指定的元素集合中

实例1:

<!DOCTYPE html>
<html lang="en">
<head>
	<meta charset="UTF-8">
	<title>jquery</title>
	<link rel="stylesheet" type="text/css" href="http://www.mamicode.com/styles/jquery.css">
	<script type="text/javascript" src="http://www.mamicode.com/scripts/jquery-3.2.0.min.js"></script>
</head>
<body>
	<h1>Hello world!</h1>
	<button>please!</button>
	<div>you are beautiful</div>	
	<script type="text/javascript">
		$(document).ready(function() {
			$("button").on("click",function() {
				$(".div").prepend("<p>hello boston</p");
				
			});
		});
	</script>
</body>
</html>

 

 

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实例2:

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>jquery</title>
    <link rel="stylesheet" type="text/css" href="http://www.mamicode.com/styles/jquery.css">
    <script type="text/javascript" src="http://www.mamicode.com/scripts/jquery-3.2.0.min.js"></script>
</head>
<body>
    <h1>Hello world!</h1>
    <button>please!</button>
    <div>you are beautiful</div>    
    <script type="text/javascript">
        $(document).ready(function() {
            $("button").on("click",function() {
                $("<p>hello boston</p>").prependTo("button");
            });
        });
    </script>
</body>
</html>

结果:

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JavaScript--DOM