From d9c2cdae41f41d879351516eeadd1fb608210242 Mon Sep 17 00:00:00 2001
From: Tim Yung <yungsters@fb.com>
Date: Thu, 15 Nov 2018 10:41:52 -0800
Subject: [PATCH] JS: Switch from `new Buffer` to `Buffer.from`

Summary:
Constructing `Buffer` using the constructor [[https://nodesource.com/blog/understanding-the-buffer-deprecation-in-node-js-10/ | has been deprecated in Node 10 due to security considerations]].

This is a simple and straightforward conversion.

Reviewed By: mjesun

Differential Revision: D13080655

fbshipit-source-id: 100d8f28c3b255422b26e820aaadcc4f32f41e0d
---
 RNTester/js/websocket_test_server.js     | 2 +-
 local-cli/generator/promptSync.js        | 4 ++--
 local-cli/server/util/copyToClipBoard.js | 6 +++---
 3 files changed, 6 insertions(+), 6 deletions(-)

diff --git a/RNTester/js/websocket_test_server.js b/RNTester/js/websocket_test_server.js
index fee92917fd37eb..19e3a43167d6ef 100755
--- a/RNTester/js/websocket_test_server.js
+++ b/RNTester/js/websocket_test_server.js
@@ -35,7 +35,7 @@ server.on('connection', ws => {
     console.log('Received message:', message);
     console.log('Cookie:', ws.upgradeReq.headers.cookie);
     if (respondWithBinary) {
-      message = new Buffer(message);
+      message = Buffer.from(message);
     }
     if (message === 'getImage') {
       message = fs.readFileSync(path.resolve(__dirname, 'flux@3x.png'));
diff --git a/local-cli/generator/promptSync.js b/local-cli/generator/promptSync.js
index c8af74c487a3a7..f8ed5ddbb7aeb1 100644
--- a/local-cli/generator/promptSync.js
+++ b/local-cli/generator/promptSync.js
@@ -43,7 +43,7 @@ function create() {
       process.stdin.setRawMode(true);
     }
 
-    var buf = new Buffer(3);
+    var buf = Buffer.from(3);
     var str = '',
       character,
       read;
@@ -62,7 +62,7 @@ function create() {
           insert = str.length;
           process.stdout.write('\u001b[2K\u001b[0G' + ask + str);
           process.stdout.write('\u001b[' + (insert + ask.length + 1) + 'G');
-          buf = new Buffer(3);
+          buf = Buffer.from(3);
         }
         continue; // any other 3 character sequence is ignored
       }
diff --git a/local-cli/server/util/copyToClipBoard.js b/local-cli/server/util/copyToClipBoard.js
index 1f22477b9b16a3..e6b1bd7a18f4aa 100644
--- a/local-cli/server/util/copyToClipBoard.js
+++ b/local-cli/server/util/copyToClipBoard.js
@@ -23,15 +23,15 @@ function copyToClipBoard(content) {
   switch (process.platform) {
     case 'darwin':
       var child = spawn('pbcopy', []);
-      child.stdin.end(new Buffer(content, 'utf8'));
+      child.stdin.end(Buffer.from(content, 'utf8'));
       return true;
     case 'win32':
       var child = spawn('clip', []);
-      child.stdin.end(new Buffer(content, 'utf8'));
+      child.stdin.end(Buffer.from(content, 'utf8'));
       return true;
     case 'linux':
       var child = spawn(xsel, ['--clipboard', '--input']);
-      child.stdin.end(new Buffer(content, 'utf8'));
+      child.stdin.end(Buffer.from(content, 'utf8'));
       return true;
     default:
       return false;