anchor.diff:        avatar: param.avatar,
            tag: param.nowTag
       };
  -    $.getJSON('/forker/fork', forkParams, function(data) {
  +    $.getJSON('/forker/fork', forkParams, (data) => {
         if (data.forked) {
           cd.newDojoDialog(data);
         } else {
  
positive.code:       }
      };
      let result = [];
      $.each(sorted, function(_, filename) {
        result.push(diffFor(filename));
      });
      return result;
  
negative.code:   // - - - - - - - - - - - - - - - - - - - - - - - -
  
    const reviewRefresh = () => {
      const reviewParams = {
              id: param.id,
          avatar: param.avatar,
         was_tag: param.wasTag,
         now_tag: param.nowTag,
        filename: param.filename
      };
      $('.ui-dialog').addClass('busy');
      $.getJSON('/differ/diff', reviewParams, (data) => {
        $('.ui-dialog').removeClass('busy');
        param = data;
        refreshDiffCheckBox();
        refreshTrafficLights();
        refreshAvatarControls();
  