From de1f32bd1fae2cdd7797ba291d70e6d2a02d5213 Mon Sep 17 00:00:00 2001
From: kolaente <k@knt.li>
Date: Mon, 23 Mar 2020 18:18:04 +0100
Subject: [PATCH] Fix icon class handling if no custom icon classes are
 provided

---
 src/js/easymde.js | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/src/js/easymde.js b/src/js/easymde.js
index 6c8200b..d64a52f 100644
--- a/src/js/easymde.js
+++ b/src/js/easymde.js
@@ -168,13 +168,12 @@ function createToolbarButton(options, enableActions, enableTooltips, shortcuts,
     }
 
     // Prevent errors if there is no class name in custom options
-    var className = '';
+    var classNameParts = [];
     if(typeof options.className !== 'undefined') {
-        className = options.className;
+        classNameParts = options.className.split(' ');
     }
 
     // Provide backwards compatibility with simple-markdown-editor by adding custom classes to the button.
-    var classNameParts = className.split(' ');
     var iconClasses = [];
     for (var classNameIndex = 0; classNameIndex < classNameParts.length; classNameIndex++) {
         var classNamePart = classNameParts[classNameIndex];