From 4316893d5b8f78a45aeb3cad52bc1b4eb8a6a9a4 Mon Sep 17 00:00:00 2001
From: Mohsen Karami <karami.mohsen@protonmail.com>
Date: Mon, 20 Oct 2025 15:01:55 +0330
Subject: [PATCH] fix: Handle undefined changedTouches for non-touch devices

---
 src/index.ts | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/src/index.ts b/src/index.ts
index 177c8ba..03f8347 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -322,8 +322,9 @@ const Vue3TouchEvents: Plugin<Partial<Vue3TouchEventsOptions>> = {
 		function checkZoom($this, event) {
 
 
-			// get the list of changed touches from the event
-			const touches = event.changedTouches;
+			// get the list of changed touches from the event (default to empty array for non-touch devices)
+			// without the fallback, `event.changedTouches` is undefined on desktop, causing error when checking length.
+			const touches = event.changedTouches || [];
 
 			// check if exactly two fingers are being used
 			if (touches.length !== 2) {