In jQuery, empty () and remove () methods are used to remove DOM node:
empty (): a collection of elements that were removed matched all child nodes, excluding itself.
remove ([expr]): Delete matched elements, including their contents and node.
The difference is that the elements themselves whether to delete the following two examples show the effect of these two methods:
The following code tag selector acquires first p tag, then call empty () method with p, label, delete p is wrapped labels of all sub-tab results are as follows, where only one p tag:
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8" />
<title></title>
<script src="js/jquery-3.3.1.js"></script>
</head>
<body>
<p><span>I </span><b>Love You.</b></p>
<script>
$("p").empty();
</script>
</body>
</html>
The following code after the call to remove the Tag Chooser acquisition target tag () method is to delete the entire match elements, including inside the parcel, and content itself. P operating results in the entire label elements do not exist, span the div tag also.
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8" />
<title></title>
<script src="js/jquery-3.3.1.js"></script>
</head>
<body>
<p><span>I </span><b>Love You.</b></p>
<script>
$("p").remove();
</script>
<div><span>I </span><span class="letters">Love You.</span></div>
<script>
$("span").remove(".letters");//删除class为letters的所有span标签
</script>
</body>
</html>
