From 3fd436360d987a6f1121762beb98651532075686 Mon Sep 17 00:00:00 2001
From: Artem Astakhov <artem_astakhov@yahoo.com>
Date: Wed, 18 Nov 2020 11:50:08 +0300
Subject: [PATCH] fix callback type check

---
 src/index.ts | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/src/index.ts b/src/index.ts
index 4b5cb9d8..c947e373 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -183,8 +183,10 @@ function getHandlers(
         props.onSwiped && props.onSwiped(eventData);
 
         const onSwipedDir = `onSwiped${eventData.dir}`;
-        if (onSwipedDir in props) {
-          ((props as any)[onSwipedDir] as SwipeCallback)(eventData);
+        const callback = (props as any)[onSwipedDir];
+
+        if (typeof callback === "function") {
+          (callback as SwipeCallback)(eventData);
         }
       } else {
         props.onTap && props.onTap({ event });