hexo-theme-stellar/layout/_partial/sidebar/widgets/toc.ejs

<%
var enable = false;
if (page.layout == 'post') {
  if (page.content && toc(page.content).length > 0) {
    enable = true;
  }
} else if (page.layout == 'wiki' || page.sidebar.includes('toc') == true) {
  enable = true;
}

function layout_toc() {
  if (toc(page.content).length > 0) {
    return toc(page.content, {
      list_number: item.list_number,
      min_depth: item.min_depth,
      max_depth: item.max_depth
    });
  }
}
 %>
<% if (enable == true) { %>
  <div class='widget-wrap' id='toc'>
    <div class='widget-header h4 dis-select'>
      <span class='name'>
        <% if (page.toc_title) { %>
          <%- page.toc_title %>
        <% } else if (page.layout == 'wiki') { %>
          <%- page.wiki || item.wiki %>
        <% } else { %>
          <%- __('meta.toc') %>
        <% } %>
      </span>
    </div>
    <div class='widget-body fs14 <%- page.layout == "wiki" ? "wiki" : "post" %>'>
      <% if (page.layout == 'wiki' && page.wiki) { %>
        <%
        var wikis = [];
        wikis = site.pages.filter(function (p) {
          if (p.layout == 'wiki' && p.wiki && p.wiki == page.wiki && (p.title || p.seo_title)) {
            if (p.order == undefined) {
              p.order = 0;
            }
            return true;
          } else {
            return false;
          }
        }).sort('order');
        %>
        <% if (wikis.length > 1) { %>
          <% wikis.each(function(p) { %>
            <% if (p.path == page.path) { %>
              <div class='doc-tree active'>
                <a class='doc-tree-link active' href="<%- url_for(p.path) %>"><span class="toc-text"><%- p.title || p.seo_title %></span></a>
                <%- layout_toc() %>
              </div>
            <% } else { %>
              <div class='doc-tree'>
                <a class='doc-tree-link' href="<%- url_for(p.path) %>"><span class="toc-text"><%- p.title || p.seo_title %></span></a>
              </div>
            <% } %>
          <% }); %>
        <% } else { %>
          <div class='doc-tree active'>
            <%- layout_toc() %>
          </div>
        <% } %>
      <% } else { %>
        <div class='doc-tree active'>
          <%- layout_toc() %>
        </div>
      <% } %>
    </div>
  </div>
<% } %>