version added: 1.0
Description: Return the number of DOM elements matched by the jQuery object.
<ul> <li>foo</li> <li>bar</li> </ul>
We can determine the number of list items by calling .size():
alert('Size: ' + $('li').size());
This will alert the count of items:
Size: 2
The .length property is a slightly faster way to get this information.
Example
Count the divs. Click to add more.Full source:
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
"http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<style>body { cursor:pointer; }
div { width:50px; height:30px; margin:5px; float:left; background:blue; }
span { color:red; }
</style>
<script src="http://code.jquery.com/jquery-latest.js"></script>
<script type="text/javascript" language="javascript">
$(document).ready(function(){
$(document.body).click(function () { $(document.body).append($("<div>"));
var n = $("div").size();
$("span").text("There are " + n + " divs." + "Click to add more.");}).click(); // trigger the click to start
});
</script>
</head>
<body>
<span></span>
<div></div>
</body>
</html>
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