Use boolean assertion for documentMode check (facebook#10032)

aweary · web-flow · commit a7f0119bc1c9 · 2017-08-01T15:19:14.000-05:00
diff --git 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);
 }
 
 /**

Original file line number	Diff line number	Diff line change
`@@ -156,7 +156,7 @@ if (ExecutionEnvironment.canUseDOM) {`
`156`	`156`
`157`	`157`	`isInputEventSupported =`
`158`	`158`	`isEventSupported('input') &&`
`159`		`- (!('documentMode' in document) \|\| document.documentMode > 9);`
	`159`	`+ (!document.documentMode \|\| document.documentMode > 9);`
`160`	`160`	`}`
`161`	`161`
`162`	`162`	`/**`