test

gistfile1.txt

$(document).ready(function(){
      setInterval(countdomains(), 1000);
      function countdomains(){
        $(".letters").each(function(){
          cb = $(this);
          $.getJSON("/api/domain/countByLetter?letter="+$(this).data('letter'), null, function(data){
            cb.text(data);
          });
        });
      }
    });