anchor.diff:    const lines = (str) => str.replace(/\n$/, '').split(/\r?\n/);
   
     //- - - - - - - - - - - - - - - - - - - - - - - - -
  -  const makeOutputFilenames = (stdout, stderr, status) => {
  -    let html = '';
  -    html += '<table class="sss filenames">';
  -    html += makeOutputFilename(stdout);
  -    html += makeOutputFilename(stderr);
  -    html += makeOutputFilename(status);
  -    html += '</table>';
  -    return html;
  +  const $makeOutputFilenames = (stdout, stderr, status) => {
  +    const $table = $('<table>', { class:'sss filenames' });
  +    $table.append($makeOutputFilenameTr(stdout));
  +    $table.append($makeOutputFilenameTr(stderr));
  +    $table.append($makeOutputFilenameTr(status));
  +    return $table;
     };
   
  -  const makeOutputFilename = (diff) => {
  -    return `<tr><td class="diff-filename" data-filename="${diff.filename}" id="radio_${diff.id}">${diff.filename}</td></tr>`;
  +  const $makeOutputFilenameTr = (diff) => {
  +    const $td = $('<td>', {
  +      class: 'diff-filename',
  +      'data-filename': diff.filename,
  +      id: `radio_${diff.id}`
  +    }).text(diff.filename);
  +    return $('<tr>').append($td);
     };
   
   });
  
positive.code:   };
  
    //- - - - - - - - - - - - - - - - - - - - - - - - -
    const makeDiffOutput = (name, content) => {
      return {
              id: name,
            type: 'unchanged',
        filename: name,
           lines: makeSameLines(content)
  
negative.code:     $diffContentOutput.empty().append($stdout, $stderr, $status);
  
      const $diffOutputFilenames = $('#diff-output-filenames');
      $diffOutputFilenames.html($makeOutputFilenames(stdout, stderr, status));
  
      $(`#radio_${stdout.id}`).click(() => review.selectFilename(stdout));
      $(`#radio_${stderr.id}`).click(() => review.selectFilename(stderr));
  