From ec12e57ff5efc8ff06e27927fac4fe72ba6fa032 Mon Sep 17 00:00:00 2001
From: Szymon Kin <68154191+hoolek77@users.noreply.github.com>
Date: Thu, 8 Dec 2022 15:27:06 +0100
Subject: [PATCH] Fix updateHash function throwing errors when there are no
 headings visible at the screen (#125)

---
 src/scripts/updateHash.ts | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/scripts/updateHash.ts b/src/scripts/updateHash.ts
index fa44b77..412000e 100644
--- a/src/scripts/updateHash.ts
+++ b/src/scripts/updateHash.ts
@@ -18,6 +18,8 @@ const updateHash = (data: Data) => {
     })
     .filter((section) => section.bottom > 0);
 
+  if (distancesToHeadingBottom.length === 0) return;
+
   const currentSection = distancesToHeadingBottom.reduce((previous, current) =>
     previous.bottom < current.bottom ? previous : current
   );