From bd335b2931a357bc196874d21e4c7baf100c691d Mon Sep 17 00:00:00 2001
From: chenjiahan <chenjiahan@youzan.com>
Date: Sat, 7 Mar 2020 09:21:27 +0800
Subject: [PATCH] fix(DropdownMenu): menu ref may not exist in some cases
 (#5770)

---
 src/dropdown-menu/index.js | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/src/dropdown-menu/index.js b/src/dropdown-menu/index.js
index 2eee55774..ee763022d 100644
--- a/src/dropdown-menu/index.js
+++ b/src/dropdown-menu/index.js
@@ -53,8 +53,11 @@ export default createComponent({
 
   methods: {
     updateOffset() {
-      const { menu } = this.$refs;
-      const rect = menu.getBoundingClientRect();
+      if (!this.$refs.menu) {
+        return;
+      }
+
+      const rect = this.$refs.menu.getBoundingClientRect();
 
       if (this.direction === 'down') {
         this.offset = rect.bottom;