From 8180baf8e41fbd9fdc596fed4e9e6daf8230b1a7 Mon Sep 17 00:00:00 2001
From: Ray <ray@isrc.iscas.ac.cn>
Date: Wed, 25 Aug 2021 21:12:30 +0800
Subject: [PATCH] doc: add descriptions about when `options.mode` is ignored

Fix: #39859

Co-authored-by: Voltrex <mohammadkeyvanzade94@gmail.com>
---
 doc/api/fs.md | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

diff --git a/doc/api/fs.md b/doc/api/fs.md
index cd47b687beb8a6..db806cfd225ead 100644
--- a/doc/api/fs.md
+++ b/doc/api/fs.md
@@ -659,6 +659,9 @@ exist. `data` can be a string or a {Buffer}.
 
 If `options` is a string, then it specifies the `encoding`.
 
+The `mode` option only affects the newly created file. See [`fs.open()`][]
+for more details.
+
 The `path` may be specified as a {FileHandle} that has been opened
 for appending (using `fsPromises.open()`).
 
@@ -1374,6 +1377,9 @@ The `encoding` option is ignored if `data` is a buffer.
 
 If `options` is a string, then it specifies the encoding.
 
+The `mode` option only affects the newly created file. See [`fs.open()`][]
+for more details.
+
 Any specified {FileHandle} has to support writing.
 
 It is unsafe to use `fsPromises.writeFile()` multiple times on the same file
@@ -1640,6 +1646,9 @@ changes:
 Asynchronously append data to a file, creating the file if it does not yet
 exist. `data` can be a string or a {Buffer}.
 
+The `mode` option only affects the newly created file. See [`fs.open()`][]
+for more details.
+
 ```mjs
 import { appendFile } from 'fs';
 
@@ -4081,6 +4090,9 @@ a file descriptor.
 
 The `encoding` option is ignored if `data` is a buffer.
 
+The `mode` option only affects the newly created file. See [`fs.open()`][]
+for more details.
+
 If `data` is a plain object, it must have an own (not inherited) `toString`
 function property.
 
@@ -4255,6 +4267,9 @@ changes:
 Synchronously append data to a file, creating the file if it does not yet
 exist. `data` can be a string or a {Buffer}.
 
+The `mode` option only affects the newly created file. See [`fs.open()`][]
+for more details.
+
 ```mjs
 import { appendFileSync } from 'fs';
 
@@ -5211,6 +5226,9 @@ Returns `undefined`.
 If `data` is a plain object, it must have an own (not inherited) `toString`
 function property.
 
+The `mode` option only affects the newly created file. See [`fs.open()`][]
+for more details.
+
 For detailed information, see the documentation of the asynchronous version of
 this API: [`fs.writeFile()`][].