.hasClass()

Syntax

.hasClass(className)

Parameters

className: The class name to search for

Return value

A Boolean indicating whether the class is assigned to an element in the set.

Description

Determine whether any of the matched elements are assigned the given class.

 
<div id="mydiv" class="foo bar"></div>

Given the preceding HTML code, the following will return true:

$('#mydiv').hasClass('foo') $('#mydiv').hasClass('bar')

 
<html>
  <head>
    <script src="http://java2s.com/Book/JavaScriptDemo/jQuery/jquery-1.8.0.min.js"></script>
    <script type="text/javascript">
        $(document).ready(function(){

              alert($("div#result1").hasClass("selected").toString());
        });
    </script>
    <style>
      .selected { color:red; }
      .highlight { background:yellow; }
    </style>
  </head>
  <body>
    <body>
      <p>A</p>
      <p>B</p>
      <p>C</p>
      <div id="result1"></div>
    </body>
</html>

Click to view the demo