From 49f140ce47c817184cfd3fee54959d7418b02dc0 Mon Sep 17 00:00:00 2001
From: Kevin Cooper <cooperka92@gmail.com>
Date: Fri, 13 Jan 2017 10:56:00 -0500
Subject: [PATCH] Fix crash if emojify string is null or undefined

---
 lib/emoji.js | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/lib/emoji.js b/lib/emoji.js
index 17af40e..8141f07 100644
--- a/lib/emoji.js
+++ b/lib/emoji.js
@@ -80,6 +80,8 @@ Emoji.which = function which(emoji_code) {
  * @return {string}
  */
 Emoji.emojify = function emojify(str, on_missing) {
+  if (!str) return '';
+
   return str.split(parser) // parse emoji via regex
             .map(function parseEmoji(s, i) {
               // every second element is an emoji, e.g. "test :fast_forward:" -> [ "test ", "fast_forward" ]