anchor.diff:    const makeDiffFilenames = (diffs) => {
       let html = '<table class="filenames">';
       html += makeIconHeadings();
  -    $.each(sortedDiffs(diffs), (_, diff) => {
  +    sortedDiffs(diffs).forEach(diff => {
         if (isTrueFile(diff)) {
           html += makeDiffTr(diff);
         }
  
positive.code:   // - - - - - - - - - - - - - - - - - - - - - - - -
    const sortedDiffs = (diffs) => {
      let filenames = [];
      $.each(diffs, (_, diff) => {
        filenames.push(diffFilename(diff));
      });
      // ensure filenames appear in the same order as kata/edit page
      const sorted = cd.sortedFilenames(filenames);
      const diffFor = (filename) => {
  
negative.code:   const makeTrafficLightsHtml = () => {
      let html = '';
      let number = 1;
      param.events.forEach(event => {
        if (isVisible(event)) {
          html += makeTrafficLightHtml(event, number);
          number += 1;
  