From 12f7b3a1e3fb46eec3cbb6bed56f3edb8221cdd4 Mon Sep 17 00:00:00 2001
From: Aresn <admin@aresn.com>
Date: Fri, 26 May 2017 09:45:05 +0800
Subject: [PATCH] update Backtop

---
 src/components/back-top/back-top.vue | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/components/back-top/back-top.vue b/src/components/back-top/back-top.vue
index 391ccf28..303951d2 100644
--- a/src/components/back-top/back-top.vue
+++ b/src/components/back-top/back-top.vue
@@ -67,7 +67,7 @@
                 this.backTop = window.pageYOffset >= this.height;
             },
             back () {
-                var sTop = document.documentElement.scrollTop||document.body.scrollTop;
+                const sTop = document.documentElement.scrollTop || document.body.scrollTop;
                 scrollTop(window, sTop, 0, this.duration);
                 this.$emit('on-click');
             }