From 1a53683353e9b85e2752d83d89d2b0748ac739ad Mon Sep 17 00:00:00 2001
From: neverland <chenjiahan@buaa.edu.cn>
Date: Mon, 26 Nov 2018 16:53:01 +0800
Subject: [PATCH] [bugfix] ImagePreview: index NaN (#2146)

---
 packages/image-preview/index.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/packages/image-preview/index.js b/packages/image-preview/index.js
index 04580c8a1..ecb972ace 100644
--- a/packages/image-preview/index.js
+++ b/packages/image-preview/index.js
@@ -20,7 +20,7 @@ const initInstance = () => {
   document.body.appendChild(instance.$el);
 };
 
-const ImagePreview = (images, startPosition) => {
+const ImagePreview = (images, startPosition = 0) => {
   /* istanbul ignore if */
   if (isServer) {
     return;