How can I get the current class of a div with jQuery?

Using jQuery, how can I get the current class of a div called div1?

Just get the class attribute:

var div1Class = $('#div1').attr('class');

Example

<div id="div1" class="accordion accordion_active">

To check the above div for classes contained in it

var a = ("#div1").attr('class'); 
console.log(a);

console output

accordion accordion_active

Simply by

var divClass = $("#div1").attr("class")

You can do some other stuff to manipulate element's class

$("#div1").addClass("foo"); // add class 'foo' to div1
$("#div1").removeClass("foo"); // remove class 'foo' from div1
$("#div1").toggleClass("foo"); // toggle class 'foo'

$('#div1').attr('class')

will return a string of the classes. Turn it into an array of class names

var classNames = $('#div1').attr('class').split(' ');

From now on is better to use the .prop() function instead of the .attr() one.

Here the jQuery documentation:

> As of jQuery 1.6, the .attr() method returns undefined for attributes > that have not been set. In addition, .attr() should not be used on > plain objects, arrays, the window, or the document. To retrieve and > change DOM properties, use the .prop() method.

var div1Class = $('#div1').prop('class');

$("#div1").attr("class")

var classname=$('#div1').attr('class')

var className=$('selector').attr('class');

or

var className=$(this).attr('class');

the classname of the current element

The addClass method in jQuery has a currentClass built in property. You can use it inside a function call. Like so:

<div>First div</div>
<div class="red">Second div</div>
<div>Third div</div>
<div>Fourth div</div>

<script>
  $("div").addClass(function(index, currentClass) {
    var addedClass;
    if ( currentClass === "red" ) {
      addedClass = "green"; }
    return addedClass;
  });
</script>

try this

$("#div1").attr("class")

<div  id="my_id" class="my_class"></div>

if that is the first div then address it like so:

document.write("div CSS class: " + document.getElementsByTagName('div')[0].className);

alternatively do this:

document.write("alternative way: " + document.getElementById('my_id').className);

It yields the following results:

div CSS class: my_class
alternative way: my_class

if you want to look for a div that has more than 1 class try this:

Html:

<div class="class1 class2 class3" id="myDiv">

Jquery:

var check = $( "#myDiv" ).hasClass( "class2" ).toString();

ouput:

true