jQuery: Getting "secondary" class

Question

I'm using jQuery to loop through some elements in a document. These elements are of type <tr> with class .input-row. Some of the elements can also have a secondary class (for example .input-area).

I use $(".input-row").each() to loop through the elements, but how can I determine if the $(this)-element has a "secondary" class and if so, get the name of this?

Answer 1

$(".input-row").each(function(){
  $.each($(this).attr('class').split(/\s+/), function(i, v){
    if(v !== 'input-row'){
      alert(v);
    }
  });
});