#strings.substring
<span th:text="|등록일 : ${#strings.substring(data.result?.date, 0, 10)}|">
등록일
</span>

#strings.arraySplit, lists.size

<th:block th:if="${data.result != null && #lists.size(#strings.arraySplit(data.result?.level, ',')) > 2}">
  <button class="btn">더보기</button>
<th:block>

#strings.defaultString

<span th:if="${data.result != null}" th:text="|결과 : ${#strings.defaultString(data.result.level, '없음')}|">결과</span>

<span th:text="|등록일 : ${#strings.defaultString(data.result.date, '0')}일|">등록일</span>

#strings.isEmpty

<span th:if="${#strings.isEmpty(data.result.date)}">비어있음</span>