From 755212b0f312a285191028142b4c6e9caea2c59c Mon Sep 17 00:00:00 2001
From: Aya Morisawa <AyaMorisawa4869@gmail.com>
Date: Mon, 24 Dec 2018 17:02:03 +0900
Subject: [PATCH] Use join instead of reduce

---
 src/prelude/string.ts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/prelude/string.ts b/src/prelude/string.ts
index c2ad8a2e7..b907e0a2e 100644
--- a/src/prelude/string.ts
+++ b/src/prelude/string.ts
@@ -1,5 +1,5 @@
 export function concat(xs: string[]): string {
-	return xs.reduce((a, b) => a + b, '');
+	return xs.join('');
 }
 
 export function capitalize(s: string): string {