From 1f3eb1cc1ec74b514f6e54fa88537818472bcb4d Mon Sep 17 00:00:00 2001
From: Masashi Hirano <cherrydog07@gmail.com>
Date: Wed, 23 May 2018 22:48:47 +0900
Subject: [PATCH] doc: fix filehandle.truncate() sample codes

PR-URL: https://github.com/nodejs/node/pull/20913
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Benjamin Gruenbaum <benjamingr@gmail.com>
Reviewed-By: Vse Mozhet Byt <vsemozhetbyt@gmail.com>
Reviewed-By: Ruben Bridgewater <ruben@bridgewater.de>
Reviewed-By: Rich Trott <rtrott@gmail.com>
---
 doc/api/fs.md | 24 ++++++++++++++++++++----
 1 file changed, 20 insertions(+), 4 deletions(-)

diff --git a/doc/api/fs.md b/doc/api/fs.md
index 957d6b4265ab7e..7905cd170c7de6 100644
--- a/doc/api/fs.md
+++ b/doc/api/fs.md
@@ -3562,8 +3562,16 @@ console.log(fs.readFileSync('temp.txt', 'utf8'));
 // Prints: Node.js
 
 async function doTruncate() {
-  const fd = await fsPromises.open('temp.txt', 'r+');
-  await fsPromises.ftruncate(fd, 4);
+  let filehandle = null;
+  try {
+    filehandle = await fsPromises.open('temp.txt', 'r+');
+    await filehandle.truncate(4);
+  } finally {
+    if (filehandle) {
+      // close the file if it is opened.
+      await filehandle.close();
+    }
+  }
   console.log(fs.readFileSync('temp.txt', 'utf8'));  // Prints: Node
 }
 
@@ -3581,8 +3589,16 @@ console.log(fs.readFileSync('temp.txt', 'utf8'));
 // Prints: Node.js
 
 async function doTruncate() {
-  const fd = await fsPromises.open('temp.txt', 'r+');
-  await fsPromises.ftruncate(fd, 10);
+  let filehandle = null;
+  try {
+    filehandle = await fsPromises.open('temp.txt', 'r+');
+    await filehandle.truncate(10);
+  } finally {
+    if (filehandle) {
+      // close the file if it is opened.
+      await filehandle.close();
+    }
+  }
   console.log(fs.readFileSync('temp.txt', 'utf8'));  // Prints Node.js\0\0\0
 }