anchor.diff:  
   $(function() {
   
  -  var progressDialog = function(id) {
  -    var id = "<%= @group.id %>";
  +  const progressDialog = function() {
  +    const id = "<%= @group.id %>";
   	  $.getJSON('/dashboard/progress', { id: id }, function(data) {
         var html = '';
         var index = 0;
         html += '<div id="progress-dialog">';
         html += '<table>';
         $.each(data.animals, function(name, animal) {
  -        var parity = (index % 2 == 0) ? 'even' : 'odd';
  +        const parity = (index % 2 == 0) ? 'even' : 'odd';
           index += 1;
           html +=
             "<tr class='" + parity + " animal'>" +
  
positive.code:       html += '</table>';
        html += '</div>';
  
        var node = $(html);
        node.dialog({
          autoOpen: true,
          modal: true,
  
negative.code:         width: 600
        });
  
        $('.avatar-image', node).click((event) => {
          const avatar = $(event.currentTarget).data('avatar');
          const lastTag = -1;
          window.open(cd.showReviewUrl(id, avatar, lastTag, lastTag));
        });
      }); // getJSON
    };
  
    $('#progress-button').click(() => {
      progressDialog();
    });
  
  