Using jQuery to Check if Element Has Class

To check if an element has class using jQuery, the simplest way is to use the hasClass() method.

$('#element').hasClass('example-class');

Let’s say I have the following HTML:

<div id="div">
  <div id="div-to-check" class="check-me">This is a div we will check.</div>
</div>

If we want to check the div to see if it has the class “check-me”, we can do the following:

var hasClassCheckMe = $('#div-to-check').hasClass('check-me');
console.log(hasClassCheckMe); // true

If you are using WordPress, don’t forget to change the $ to jQuery as below:

var hasClassCheckMe = jQuery('#div-to-check').hasClass('check-me');
console.log(hasClassCheckMe); // true

Checking if Element Has Class Using jQuery On Click

We can check if a HTML element has a class on click using jQuery very easily by combining the hasClass() method with a click event.

Let’s say we have the following HTML code and we want to display if our div has the class “check-me” and “check-me-too” in the span below:

<div id="div1">
  <div id="div-to-check" class="check-me">We will check this div for class "check-me"</div>
  <p>Does the div "div-to-check" have class "check-me"? <b><span id="hasClass-value-1"></span></b>.</p>
  <p>Does the div "div-to-check" have class "check-me-too"? <b><span id="hasClass-value-2"></span></b>.</p>
  <div id="click-me">Check</div>
</div>

We can utilize both the jQuery click() method and jQuery hasClass() method to find if the div has class “check-me”. Then we will change the text of the span and display true or false.

Below is the JavaScript code which will allow us to see if our element has the class “check-me” and “check-me-too” then display the two values.

$('#click-me').click(function(){
  $("#hasClass-value-1").text($('#div-to-check').hasClass('check-me'));
  $("#hasClass-value-2").text($('#div-to-check').hasClass('check-me-too'));
});

The final code and output for this example of how to check if an element has a class on a click using jQuery and JavaScript is below:

Code Output:

Full Code:

<div id="div1">
  <div id="div-to-check" class="check-me">We will check this div for class "check-me"</div>
  <p>Does the div "div-to-check" have class "check-me"? <b><span id="hasClass-value-1"></span></b>.</p>
  <p>Does the div "div-to-check" have class "check-me-too"? <b><span id="hasClass-value-2"></span></b>.</p>
  <div id="click-me">Check</div>
</div>

<script>

$('#click-me').click(function(){
  $("#hasClass-value-1").text($('#div-to-check').hasClass('check-me'));
  $("#hasClass-value-2").text($('#div-to-check').hasClass('check-me-too'));
});

</script>

Hopefully this article has been useful for you to understand how to use jQuery to check if an element has a certain class.