<div class="companyname" data-companyname="abc" ></div>
<div class="companyname" data-companyname="xyz" ></div>
<div class="companyname" data-companyname="pqr" ></div>
I need show only data-companyname="abc" div only....so i used following way in jQuery
$(".companyname").attr('abc').show();
How to get this?