From 4eb9a798ed1c71d9435337a6f973adb8b7dc6541 Mon Sep 17 00:00:00 2001
From: Suguru Motegi <suguru.motegi@gmail.com>
Date: Thu, 27 Feb 2020 22:36:29 -0800
Subject: [PATCH] Check bulk reply type strictly (#51)

---
 redis.ts | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/redis.ts b/redis.ts
index 025b8b4c..a9d7c338 100644
--- a/redis.ts
+++ b/redis.ts
@@ -525,7 +525,8 @@ class RedisImpl implements Redis {
     ...args: (string | number)[]
   ): Promise<BulkResult> {
     const [_, reply] = await this.executor.execRawReply(command, ...args);
-    if (typeof reply !== "string" && reply != null) {
+    // Note: `reply != null` won't work when `strict` is false #50
+    if (typeof reply !== "string" && typeof reply !== 'undefined') {
       throw new Error();
     }
     return reply;