From 9e5b2d7efaecbae60bf9507bc1d416bf398d08dd Mon Sep 17 00:00:00 2001
From: Evgeniy Foucault <gcoding@gmail.com>
Date: Sun, 2 Dec 2018 02:52:24 +0200
Subject: [PATCH] filter empty strings, in case of `--custom-var`

---
 src/utils/mixins.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/utils/mixins.js b/src/utils/mixins.js
index 428068181..4b5bbde2e 100644
--- a/src/utils/mixins.js
+++ b/src/utils/mixins.js
@@ -73,7 +73,7 @@ const getUnitFromValue = value => {
 const upFirst = value => value[0].toUpperCase() + value.toLowerCase().slice(1);
 
 const camelCase = value => {
-  const values = value.split('-');
+  const values = value.split('-').filter(String);
   return values[0].toLowerCase() + values.slice(1).map(upFirst);
 };