@@ -114,7 +114,7 @@ function toPageTocItems(items: PageOutlineItem[]): PageTocItem[] {
 function omitSingleDocumentHeading(items: PageOutlineItem[]) {
   if (items.length !== 1) return items
   const [item] = items
-  if (!item || item.depth !== 1) return items
+  if (item?.depth !== 1) return items
   return item.children ?? []
 }
Original file line number	Diff line number	Diff line change
`@@ -114,7 +114,7 @@ function toPageTocItems(items: PageOutlineItem[]): PageTocItem[] {`
`114`	`114`	`function omitSingleDocumentHeading(items: PageOutlineItem[]) {`
`115`	`115`	`if (items.length !== 1) return items`
`116`	`116`	`const [item] = items`
`117`		`- if (!item \|\| item.depth !== 1) return items`
	`117`	`+ if (item?.depth !== 1) return items`
`118`	`118`	`return item.children ?? []`
`119`	`119`	`}`
`120`	`120`