#399

frontend/src/pages/posts/PostNewPage.tsx

@@ -24,7 +24,8 @@ import type { User } from '@/types'
 
 type Props = { user: User | null }
 
-type PostFormField = 'url'
+type PostFormField =
+    'url'
     | 'title'
     | 'tags'
     | 'parentPostIds'
@@ -54,9 +55,11 @@ const PostNewPage: FC<Props> = ({ user }) => {
   const [url, setURL] = useState ('')
 
   const thumbnailPreviewRef = useRef ('')
-  const videoFlg = useMemo (() =>
-      tags.split (/\s+/).some (
-	  tag => tag.replace (/\[.*\]$/, '') === '動画'), [tags])
+  const videoFlg =
+      useMemo (() =>
+	  tags.split (/\s+/).some (
+	      tag => tag.replace (/\[.*\]$/, '') === '動画'),
+	       [tags])
 
   const handleSubmit = async () => {
     clearValidationErrors ()
@@ -109,11 +112,13 @@ const PostNewPage: FC<Props> = ({ user }) => {
       URL.revokeObjectURL (thumbnailPreviewRef.current)
     try
     {
-      const data = await apiGet<Blob> ('/preview/thumbnail', { params: { url },
-							      responseType: 'blob' })
+      const data = await apiGet<Blob> ('/preview/thumbnail',
+				       { params: { url },
+					 responseType: 'blob' })
       const imageURL = URL.createObjectURL (data)
       setThumbnailPreview (imageURL)
-      setThumbnailFile (new File ([data], 'thumbnail.png',
+      setThumbnailFile (new File ([data],
+				  'thumbnail.png',
 				  { type: data.type || 'image/png' }))
     }
     finally