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jQuery - Add elements

Add new HTML content

We will learn four jQuery methods for adding new content:

append() - Insert content at the end of the selected element

prepend() - Insert content at the beginning of the selected element

after() - Insert content after the selected element

before() - Insert content before 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(){
  $("#btn1").click(function(){
    $("p").append(" <b>追加文本</b>。");
  });
  $("#btn2").click(function(){
    $("ol").append("<li>追加列表項(xiàng)</li>");
  });
});
</script>
</head>
<body>
<p>段落。</p>
<p>另一個(gè)段落。</p>
<ol>
<li>List item 1</li>
<li>List item 2</li>
<li>List item 3</li>
</ol>
<button id="btn1">添加文本</button>
<button id="btn2">添加列表項(xiàng)</button>
</body>
</html>

prepend() method

jQuery prepend() method inserts content at the beginning of the selected element.

<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>php中文網(wǎng)(php.cn)</title>
<meta charset="utf-8">
<script src="http://libs.baidu.com/jquery/1.10.2/jquery.min.js">
</script>
<script>
$(document).ready(function(){
$("#btn1").click(function(){
$("p").prepend("<b>在開頭追加文本</b>。 ");
});
$("#btn2").click(function(){
$("ol").prepend("<li>在開頭添加列表項(xiàng)</li>");
});
});
</script>
</head>
<body>
<p>段落。</p>
<p>另一個(gè)段落。</p>
<ol>
<li>列表 1</li>
<li>列表 2</li>
<li>列表 3</li>
</ol>
<button id="btn1">添加文本</button>
<button id="btn2">添加列表項(xiàng)</button>
</body>
</html>

The append() and prepend() methods can receive an unlimited number of new elements via parameters. Text/HTML can be generated via jQuery (like in the example above), or via JavaScript code and DOM elements.


after() and before()

jQuery after() method inserts content after the selected element.

The jQuery before() method inserts content before 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(){
  $("#btn1").click(function(){
    $("span").before("<b>之前</b>");
  });
  $("#btn2").click(function(){
    $("span").after("<i>之后</i>");
  });
});
</script>
</head>
<body>
<span style="font-size: 30px;">內(nèi)容</span>
<br><br>
<button id="btn1">之前插入</button>
<button id="btn2">之后插入</button>
</body>
</html>

The after() and before() methods can receive an unlimited number of new elements through parameters. New elements can be created via text/HTML, jQuery or JavaScript/DOM.

Continuing Learning
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<!DOCTYPE html> <html> <head> <meta charset="utf-8"> <title>php中文網(wǎng)(php.cn)</title> <script src="http://libs.baidu.com/jquery/1.10.2/jquery.min.js"></script> <script type="text/javascript"> $(document).ready(function(){ $("button").click(function(){ $("p").append(" <b>Hello jQuery!</b>"); }); }); </script> </head> <body> <p>This is a paragraph.</p> <p>This is another paragraph.</p> <button>在每個(gè) p 元素的結(jié)尾添加內(nèi)容</button> </body> </html>
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