anchor.diff:      let html = '';
       html += '<table>';
       $.each(sortedDiffs(diffs), (_, diff) => {
  +      if (diff == undefined) return; // TODO: FIX ME
         const td = $('<td>');
         const filenameDiv =
           $('<div>', {
  
positive.code:     }
      html += '<table>';
      $.each(sortedDiffs(diffs), (_, diff) => {
        const count = diff[propertyName];
        const td = $('<td>');
        const noneOrSome = (count == 0) ? 'none' : 'some';
  
negative.code:           return diffs[i];
          }
        }
        //alert(`sortedDiffs:diffFor(:${filename}:)... NO MATCH`);
      };
      let result = [];
      $.each(sorted, (_, filename) => {
  