From 94d09113a21e96aaab86f577d4e0e815dfd70c64 Mon Sep 17 00:00:00 2001
From: Henadzi <74081058+Gena888@users.noreply.github.com>
Date: Tue, 2 Nov 2021 21:52:43 +0300
Subject: [PATCH] doc: add explicit declaration of fd with null val
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In example of implementing a writable stream with extending on
Writable add explicit declaration of 'fd' (file descriptor)
variable with null value.
It will make this example more similar to readable stream's one.
And will make it easier to figure out in topic.

PR-URL: https://github.com/nodejs/node/pull/40704
Reviewed-By: Tobias Nießen <tniessen@tnie.de>
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
Reviewed-By: Minwoo Jung <nodecorelab@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Matteo Collina <matteo.collina@gmail.com>
---
 doc/api/stream.md | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/api/stream.md b/doc/api/stream.md
index 7ff94e71f2b062..c2f5a6fe43ca68 100644
--- a/doc/api/stream.md
+++ b/doc/api/stream.md
@@ -2558,6 +2558,7 @@ class WriteStream extends Writable {
   constructor(filename) {
     super();
     this.filename = filename;
+    this.fd = null;
   }
   _construct(callback) {
     fs.open(this.filename, (err, fd) => {