From 54084ef85676a19ae4a2cbd9701514b262ba022b Mon Sep 17 00:00:00 2001
From: medifle <13296643+medifle@users.noreply.github.com>
Date: Wed, 19 Dec 2018 17:52:45 -0500
Subject: [PATCH] fix return

return may need to be an empty array, else if you:
parse(""), it will raise TypeError
---
 .../09-regexp-groups/5-parse-expression/solution.md             | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/5-regular-expressions/09-regexp-groups/5-parse-expression/solution.md b/5-regular-expressions/09-regexp-groups/5-parse-expression/solution.md
index 45c4ea2a..3db5f667 100644
--- a/5-regular-expressions/09-regexp-groups/5-parse-expression/solution.md
+++ b/5-regular-expressions/09-regexp-groups/5-parse-expression/solution.md
@@ -41,7 +41,7 @@ function parse(expr) {
 
   let result = expr.match(reg);
 
-  if (!result) return;
+  if (!result) return [];
   result.shift();
 
   return result;