From eb2d49bfe4e4f360a4c2f2b893fd064bb08e27e6 Mon Sep 17 00:00:00 2001
From: nihaoa <32973375+yuanjh6@users.noreply.github.com>
Date: Fri, 27 Mar 2020 21:44:30 +0800
Subject: [PATCH] fix bug wordcount (#654)

---
 includes/helpers/site.js | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/includes/helpers/site.js b/includes/helpers/site.js
index c29c187..1470f00 100644
--- a/includes/helpers/site.js
+++ b/includes/helpers/site.js
@@ -57,6 +57,9 @@ module.exports = function (hexo) {
      * Get the word count of a paragraph.
      */
     hexo.extend.helper.register('word_count', function (content) {
+	if (typeof(content) == "undefined") {
+            return 0
+        }
         content = content.replace(/<\/?[a-z][^>]*>/gi, '');
         content = content.trim();
         return content ? (content.match(/[\u00ff-\uffff]|[a-zA-Z]+/g) || []).length : 0;
@@ -103,4 +106,4 @@ module.exports = function (hexo) {
     hexo.extend.helper.register('hexo_version', function (data) {
         return hexo.version;
     });
-}
\ No newline at end of file
+}