diff --git a/lib/note/index.js b/lib/note/index.js
index f0e5de20..664ad465 100644
--- a/lib/note/index.js
+++ b/lib/note/index.js
@@ -233,7 +233,7 @@ function listMyNotes (req, res) {
 }
 
 const deleteNote = async (req, res) => {
-  if(req.isAuthenticated()) {
+  if (req.isAuthenticated()) {
     const noteId = await Note.parseNoteIdAsync(req.params.noteId)
     try {
       const destroyed = await Note.destroy({
@@ -260,21 +260,21 @@ const deleteNote = async (req, res) => {
 }
 
 const updateNote = async (req, res) => {
-  if(req.isAuthenticated()) {
+  if (req.isAuthenticated()) {
     const noteId = await Note.parseNoteIdAsync(req.params.noteId)
     try {
       const note = await Note.findOne({
         where: {
-          id: noteId,
+          id: noteId
         }
       })
       if (!note) {
         logger.error('Update note failed: Can\'t find the note.')
         return errorNotFound(req, res)
       }
-      
+
       const updated = await note.update({
-        content: req.body.content,
+        content: req.body.content
       })
       if (!updated) {
         logger.error('Update note failed: Write data error.')
diff --git a/public/js/extra.js b/public/js/extra.js
index 954a161c..8870b57b 100644
--- a/public/js/extra.js
+++ b/public/js/extra.js
@@ -516,7 +516,7 @@ export function finishView (view) {
     $value.unwrap()
     try {
       const data = transform(content)
-      $elem.html(`<div class="markmap-container"><svg></svg></div>`)
+      $elem.html('<div class="markmap-container"><svg></svg></div>')
       markmap($elem.find('svg')[0], data, {
         duration: 0
       })