From 7f22ee3934aa0271cdf3cb980f9dc8e95ae58e6e Mon Sep 17 00:00:00 2001
From: tim-hub <tim_w@outlook.com>
Date: Sat, 19 Sep 2020 15:11:27 +1200
Subject: [PATCH] fix a new site init, unit maybe undefined

---
 lib/date.js | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/lib/date.js b/lib/date.js
index 63bad45e..da071128 100644
--- a/lib/date.js
+++ b/lib/date.js
@@ -136,6 +136,10 @@ export function getDateArray(data, startDate, endDate, unit) {
 }
 
 export function getDateLength(startDate, endDate, unit) {
+  if (!unit) {
+    unit = 'day';
+  }
+
   const [diff] = dateFuncs[unit];
   return diff(endDate, startDate) + 1;
 }