JavaScript Tutorial/jQuery/removeClass
Содержание
Add and remove style class
<html>
<head>
<script type="text/javascript" src="js/jquery-1.3.2.js"></script>
<style type="text/css">
.changeP { font-weight: bold; color:red;}
</style>
<script type="text/javascript">
$(document).ready(function(){
$("input.buttonA").click(function(){ $("p.fifthparagraph").addClass("changeP"); });
$("input.buttonB").click(function(){ $("p.fifthparagraph").removeClass("changeP"); });
});
</script>
</head>
<body>
<input type="button" value="Change" class="buttonA" />
<input type="button" value="Change" class="buttonB" />
<div style="background:#eee;" class="contentToChange">
<h2>Header 2</h2>
<p class="firstparagraph">Lorem ipsum <em>dolor</em> sit amet, consectetuer <em>adipiscing</em> elit, sed diam nonummy nibh euismod <em>tincidunt</em> ut laoreet dolore magna aliquam erat <strong>volutpat</strong>. Ut wisi enim ad minim <em>veniam</em>, quis nostrud exerci <strong>tation</strong> ullamcorper suscipit lobortis nisl ut aliquip ex ea commodo consequat.</p>
<p class="fifthparagraph">Lorem ipsum <em>dolor</em> sit amet, consectetuer <em>adipiscing</em> elit, sed diam nonummy nibh euismod <em>tincidunt</em> ut laoreet dolore magna aliquam erat <strong>volutpat</strong>. Ut wisi enim ad minim <em>veniam</em>, quis nostrud exerci <strong>tation</strong> ullamcorper suscipit lobortis nisl ut aliquip ex ea commodo consequat.</p>
</div>
</body>
</html>
removeClass(class) removes all or the specified class
<html>
<head>
<script type="text/javascript" src="js/jquery-1.3.2.js"></script>
<script type="text/javascript">
$(document).ready(function(){
$("p:even").removeClass("highlight");
});
</script>
<style>
.selected { color:red; }
.highlight { background:yellow; }
</style>
</head>
<body>
<body>
<p class="selected highlight">Hello</p>
</body>
</html>
Remove class from all
<html>
<head>
<script type="text/javascript" src="js/jquery-1.3.2.js"></script>
<script type="text/javascript">
$(document).ready(function(){
$("#container").click(function (e) {
$("*").removeClass("className");
e.preventDefault();
return false;
});
});
</script>
</head>
<body>
<body>
<div id="container">
<div>
</div>
</div>
</body>
</html>
Remove class from even number paragraph
<html>
<head>
<script type="text/javascript" src="js/jquery-1.3.2.js"></script>
<script type="text/javascript">
$(document).ready(function(){
$("p:even").removeClass("blue");
});
</script>
</head>
<style>
.blue { color:blue; }
</style>
<body>
<body>
<p class=blue>A</p>
<p class=blue>A</p>
<p class=blue>A</p>
</body>
</html>
Remove style class from first paragraph
<html>
<head>
<script type="text/javascript" src="js/jquery-1.3.2.js"></script>
<script type="text/javascript">
$(document).ready(function(){
$("p:first").removeClass("blue");
});
</script>
</head>
<style>
.blue { color:blue; }
</style>
<body>
<body>
<p class=blue>A</p>
<p class=blue>A</p>
<p class=blue>A</p>
</body>
</html>