How to check if an HTML element has no class

Question

I want to append a class to an anchor tag, which as no class. Also this anchor tag is inside many DIV elements and h4 tag So h4 has a class say abc inside this h4 tag there is this anchor tag which doesn't have any class.This is what I tried but not working. I want to append a class to the anchor that doesn't have a class at present.

$(document).ready(function(){
 $('.abc a').hasClass(''){
   $(this).addClass('active');
 }
});

FIDDLE

Answer 1

You could use:

$('.abc a').filter(':not([class])').addClass('active');