From 7c4d2234f2492ddc051557f4717a6c675bb5f11d Mon Sep 17 00:00:00 2001
From: Grzegorz Kucmierz <gkucmierz@gmail.com>
Date: Tue, 19 Nov 2019 16:34:18 +0100
Subject: [PATCH] return undefined if not match

---
 sum-of-pairs/index.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sum-of-pairs/index.js b/sum-of-pairs/index.js
index 5dc4d51..cbe5480 100644
--- a/sum-of-pairs/index.js
+++ b/sum-of-pairs/index.js
@@ -8,5 +8,5 @@ const sum_pairs = (arr, sum) => {
     }
     map[sum - arr[i]] = true;
   }
-  return [];
+  return [][0];
 };