From 000461993b4bc910336221df6c7573df58ddc321 Mon Sep 17 00:00:00 2001
From: Andreas Hocevar <andreas.hocevar@gmail.com>
Date: Thu, 12 Aug 2021 12:18:51 +0200
Subject: [PATCH] Add undefined as type when optional and no default

---
 config/jsdoc/api/template/tmpl/params.tmpl | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/config/jsdoc/api/template/tmpl/params.tmpl b/config/jsdoc/api/template/tmpl/params.tmpl
index e08a4d3421..f5ef85bd15 100644
--- a/config/jsdoc/api/template/tmpl/params.tmpl
+++ b/config/jsdoc/api/template/tmpl/params.tmpl
@@ -70,7 +70,7 @@
             <?js if (!param.subparams) {?>
             <td class="type">
             <?js if (param.type && param.type.names) {?>
-                <?js= self.partial('type.tmpl', param.type.names) ?>
+                <?js= self.partial('type.tmpl', param.type.names) + (param.optional && typeof param.defaultvalue === 'undefined' && param.type.names.indexOf('undefined') === -1 ? ' | undefined' : '') ?>
                 <?js if (typeof param.defaultvalue !== 'undefined') { ?>
                     (defaults to <?js= self.htmlsafe(param.defaultvalue) ?>)
                 <?js } ?>