From cc35aaac830d9a1c7b4a900a4079687f33a635ae 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 4f242a5d519da2..8ca8fb1db5c0f1 100644
--- a/doc/api/stream.md
+++ b/doc/api/stream.md
@@ -2612,6 +2612,7 @@ class WriteStream extends Writable {
   constructor(filename) {
     super();
     this.filename = filename;
+    this.fd = null;
   }
   _construct(callback) {
     fs.open(this.filename, (err, fd) => {