when traversing an array using Thymelaf loops in hmlt
<div th:each="c : ${blog.categories}">
    <span  class="label label-primary" th:text="${c}"></span>
</div>the display on the page is as follows
  
 
 because here  ${blog.categories}  is a string rather than an array object! In JS,  JSON.parse ()  is fine, but how to solve this problem? 
