From f4c694af83a9cf4719fd2c1a7a140506c62f75e2 Mon Sep 17 00:00:00 2001
From: sinkhaha <1468709106@qq.com>
Date: Thu, 15 Jun 2023 15:11:29 +0800
Subject: [PATCH] doc: update fs flags documentation

---
 doc/api/fs.md | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/doc/api/fs.md b/doc/api/fs.md
index e95865db7fb200..01abd668c499b0 100644
--- a/doc/api/fs.md
+++ b/doc/api/fs.md
@@ -7973,6 +7973,9 @@ string.
 * `'r'`: Open file for reading.
   An exception occurs if the file does not exist.
 
+* `'rs'`: Open file for reading in synchronous mode.
+  An exception occurs if the file does not exist.
+
 * `'r+'`: Open file for reading and writing.
   An exception occurs if the file does not exist.