.hasClass()

See whether any elements in a collection have the requested class.

Usage

$(selector).hasClass(className);

className

The name of the class to test against the collection.

Returns

True when any item in the supplied collection has the requested class, false if not.

Example

Using the following HTML:

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

The following javascript will determine whether the requested class is set on any item in the collection:

var foo = $("div").hasClass("foo"); // true
var bar  = $("div").hasClass("bar"); // true
var foo2 = $("div.foo").hasClass("bar"); //true
var flu = $("div").hasClass("flu"); // false