Get the first class from an element using jQuery

Question

How can I get only the first p7 class from this HTML element?

HTML

 <div id="myDIV" class="p7 nextclass class_tt">some content</div> 

Javascript

 $('#myDIV').attr('class').first(); //will not work 

Answer 1

 $('#myDIV').attr('class').split(' ')[0]; 

$('#myDIV').attr('class') returns a string. split(' ') split into an array using ' ' as a separator.

Answer 2

You can use split () to do this:

 var firstClass = $('#myDIV').attr('class').split(' ')[0];