From 4e46e55e1199414106e15ab54dd7915905a201d2 Mon Sep 17 00:00:00 2001
From: "qingwei.li" <cinwell.li@gmail.com>
Date: Fri, 5 Aug 2016 17:41:08 +0800
Subject: [PATCH] Optimized code

---
 packages/popover/src/main.vue | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/packages/popover/src/main.vue b/packages/popover/src/main.vue
index 9e6c01dfc..949b3ec73 100644
--- a/packages/popover/src/main.vue
+++ b/packages/popover/src/main.vue
@@ -78,7 +78,7 @@ export default {
           }, 200);
         });
       } else {
-        if (reference.hasChildNodes()) {
+        if ([].slice.call(reference.children).length) {
           const children = reference.childNodes;
 
           for (let i = 0; i < children.length; i++) {