<!DOCTYPE html>
<html>
<head>
<script type='text/javascript'
src='http://code.jquery.com/jquery-1.9.1.js'></script>
<script type='text/javascript'>
$(window).load(function(){
if ( $('div').hasClass( 'test-class' ) ) {
$( ".to-hide" ).css("display", "none");
}
});
</script>
</head>
<body>
<div class="test-class">This Stays</div>
<div class="to-hide">THIS SHOULD BE HIDDEN</div>
</body>
</html>
The code above is rendered as follows:
Another example
<html>
<head>
<script type="text/javascript" src="http://code.jquery.com/jquery-1.5.2.js"></script>
<script type="text/javascript">
$(document).ready(function(){
$("div").append($("p:first").hasClass("selected").toString());
});
</script>
</head>
<body>
<body>
<p>A</p>
<div></div>
</body>
</html>
The code above is rendered as follows:
hasClass(class) returns true if the specified class is present
<html>
<head>
<script type="text/javascript" src="http://code.jquery.com/jquery-1.5.2.js"></script>
<script type="text/javascript">
$(document).ready(function(){
$("p:last").addClass("selected highlight");
console.log($("p:last").hasClass("selected").toString());
});
</script>
<style>
.selected { color:red; }
.highlight { background:yellow; }
</style>
</head>
<body>
<p>A</p>
<p>B</p>
<p>C</p>
</body>
</html>
The code above is rendered as follows:
【class】
