code: function getMarkupFromData(dataForSingleItem) {
    var name = dataForSingleItem.first_name + ' ' + dataForSingleItem.last_name;
    // https://www.paulirish.com/2009/random-hex-color-code-snippets/
    var randomColor = ('000000' + Math.random().toString(16).slice(2, 8)).slice(-6);
    return [
      '<div class="js-item col-3@xs col-3@sm person-item" data-id="' + dataForSingleItem.id + '">',
      '<div class="person-item__inner" style="background-color:#' + randomColor + '">',
      '<span>' + name + '</span>',
      '</div>',
      '</div>',
    ].join('');
  }
docs: Convert an object to HTML markup for an item.
  @param {object} dataForSingleItem Data object.
  @return {string}