jQuery Attribute Manipulation - addClass() Method

Example

Check if the first <p> element contains the "intro" class:

$("button").click(function(){
  alert($("p:first").hasClass("intro"));
});

Try It Yourself

Definition and Usage

The hasClass() method checks if the selected element contains the specified class.

Syntax

$(selector).hasClass(class)
Parameter Description
class Required. Specifies the class to be searched for within the specified element.