From a7f0119bc1c907ba0a3adcc7e7b80aed593c57fa Mon Sep 17 00:00:00 2001
From: Brandon Dail <aweary@users.noreply.github.com>
Date: Tue, 1 Aug 2017 15:19:14 -0500
Subject: [PATCH] Use boolean assertion for documentMode check (#10032)

---
 src/renderers/dom/client/eventPlugins/ChangeEventPlugin.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/renderers/dom/client/eventPlugins/ChangeEventPlugin.js b/src/renderers/dom/client/eventPlugins/ChangeEventPlugin.js
index 473aef5153..5156db94d8 100644
--- a/src/renderers/dom/client/eventPlugins/ChangeEventPlugin.js
+++ b/src/renderers/dom/client/eventPlugins/ChangeEventPlugin.js
@@ -156,7 +156,7 @@ if (ExecutionEnvironment.canUseDOM) {
 
   isInputEventSupported =
     isEventSupported('input') &&
-    (!('documentMode' in document) || document.documentMode > 9);
+    (!document.documentMode || document.documentMode > 9);
 }
 
 /**