diff --git a/docs/.vuepress/markdown/createSidebar.js b/docs/.vuepress/markdown/createSidebar.js
index b1b36ea1753b19f662067fa9ceea3a150856c32a..1edbdd54b5b2350189bc1dd94de1d5bc9fd4a9ae 100644
--- a/docs/.vuepress/markdown/createSidebar.js
+++ b/docs/.vuepress/markdown/createSidebar.js
@@ -25,14 +25,7 @@ function parseBar(file, options) {
               text = text || child.content
               break;
             case 'link_open':
-              const len = child.attrs.length
-              for (let index = 0; index < len; index++) {
-                const attr = child.attrs[index];
-                if (attr[0] === 'href') {
-                  link = link || attr[1]
-                  break;
-                }
-              }
+              link = link || new Map(child.attrs).get('href')
               break;
             case 'code_inline':
               try {