Don't read property twice

facebook · Aug 29, 2017 · fbcced1 · fbcced1
1 parent b93e093
commit fbcced1
Showing 1 changed file with 3 additions and 2 deletions.
diff --git a/src/renderers/dom/fiber/ReactDOMFiberComponent.js b/src/renderers/dom/fiber/ReactDOMFiberComponent.js
@@ -746,15 +746,16 @@ var ReactDOMFiberComponent = {
     lastRawProps: Object,
     nextRawProps: Object,
   ): void {
+    var namespaceURI = domElement.namespaceURI;
     var wasCustomComponentTag = isCustomComponent(
       tag,
       lastRawProps,
-      domElement.namespaceURI,
+      namespaceURI,
     );
     var isCustomComponentTag = isCustomComponent(
       tag,
       nextRawProps,
-      domElement.namespaceURI,
+      namespaceURI,
     );
     // Apply the diff.
     updateDOMProperties(