jQuery .change() on Radio Button
I must be missing something obvious here... I can't get .change() to fire on radio buttons? I have the code below live here!
<!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>
<title>Radio Button jQuery Change</title>
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.4.2/jquery.min.js" type="text/javascript"></script>
<script type="text/javascript">
console.log("parsed");
$("input[name='rdio']").change(functio开发者_JAVA百科n() {
console.log("changed");
if ($("input[name='rdio']:checked").val() == 'a')
$("output").text("a changed");
else if ($("input[name='rdio']:checked").val() == 'b')
$("output").text("b changed");
else
$("output").text("c changed");
});
</script>
</head>
<body>
<div>
<input type="radio" name="rdio" value="a" checked="checked" /> a <br/>
<input type="radio" name="rdio" value="b" /> b <br/>
<input type="radio" name="rdio" value="c" /> c
</div>
<h3>Output:</h3>
<div id="output"></div>
</body>
</html>
Can anyone see what I've missed?
Thanks, Denis
You must put the code inside the dom-ready event...
$(document).ready(function(){
// Your code here
});
or else the script gets executed before the HTML-elements have been loaded. Thus, no radioboxes exist.
Your
$("output").text("a changed");
should also be
$("#output").text("a changed");
because it is an id you are matching against.
加载中,请稍侯......
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