From 85f08ab28be59e19e23f85043470c4890d57f44d Mon Sep 17 00:00:00 2001
From: Evan Bacon <baconbrix@gmail.com>
Date: Thu, 7 Feb 2019 04:08:07 -0800
Subject: [PATCH 1/2] Create Platform.web.js

---
 Libraries/Utilities/Platform.web.js | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)
 create mode 100644 Libraries/Utilities/Platform.web.js

diff --git a/Libraries/Utilities/Platform.web.js b/Libraries/Utilities/Platform.web.js
new file mode 100644
index 00000000000000..cd7fa8f28a876a
--- /dev/null
+++ b/Libraries/Utilities/Platform.web.js
@@ -0,0 +1,18 @@
+/**
+ * Copyright (c) 2015-present, Facebook, Inc.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ *
+ * @format
+ * @flow
+ */
+
+'use strict';
+
+const Platform = {
+  OS: 'web',
+  select: (obj: Object) => ('web' in obj ? obj.web : obj.default),
+};
+
+module.exports = Platform;

From 11b158cbf33108381ceaca21c24594d0d525cd14 Mon Sep 17 00:00:00 2001
From: Evan Bacon <baconbrix@gmail.com>
Date: Mon, 11 Feb 2019 16:01:44 -0800
Subject: [PATCH 2/2] Update Platform.web.js

---
 Libraries/Utilities/Platform.web.js | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/Libraries/Utilities/Platform.web.js b/Libraries/Utilities/Platform.web.js
index cd7fa8f28a876a..f70ae14b7d1d2f 100644
--- a/Libraries/Utilities/Platform.web.js
+++ b/Libraries/Utilities/Platform.web.js
@@ -10,9 +10,15 @@
 
 'use strict';
 
+export type PlatformSelectSpec<D, I> = {
+  default?: D,
+  web?: I,
+};
+
 const Platform = {
   OS: 'web',
-  select: (obj: Object) => ('web' in obj ? obj.web : obj.default),
+  select: <D, I>(spec: PlatformSelectSpec<D, I>): D | I =>
+    'web' in spec ? spec.web : spec.default,
 };
 
 module.exports = Platform;