.length
length Returns: Number
Description: The number of elements in the jQuery object.
-
version added: 1.0length
The number of elements currently matched. The .size() method will return the same value.
Example:
Count the divs. Click to add more.
<!DOCTYPE html>
<html>
<head>
<style>
body { cursor:pointer; }
div { width:50px; height:30px; margin:5px; float:left;
background:green; }
span { color:red; }
</style>
<script src="http://code.jquery.com/jquery-1.7rc2.js"></script>
</head>
<body>
<span></span>
<div></div>
<script>$(document.body).click(function () {
$(document.body).append($("<div>"));
var n = $("div").length;
$("span").text("There are " + n + " divs." +
"Click to add more.");
}).trigger('click'); // trigger the click to start</script>
</body>
</html>