javascript

Example application of val of in jQuery

1, example source code


<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>jQuery In the val()</title>
<script type="text/javascript" src="jquery-2.1.0.js"></script>
<script type="text/javascript">
$(function(){
$("#btn").click(function(){
$("input[name=ckb]:checked").each(function() {
alert($(this).val());
});
});

});
</script>
</head>

<body>
<div id="div1">
<table>
<tr>
<td>
<input type="checkbox" id="ckb1" name="ckb" value=" basketball "/> basketball
<input type="checkbox" id="ckb2" name="ckb" value=" football "/> football
<input type="checkbox" id="ckb3" name="ckb" value=" volleyball "/> volleyball
</td>
</tr>
<tr>
<td>
<input type="button" id="btn" value=" The values "/>
</td>
</tr>
</table>
</div>
</body>
</html>

2. The results are as follows

(1) select all

“Basketball, football and volleyball”

(2) select part

The corresponding values pop up in turn

(3) not at all

Don’t play window