Performance: setTextContent should attempt to set TextNode nodeValue …

…where possible (#7005)
facebook · Jun 10, 2016 · 40f6d3e · 40f6d3e
1 parent 46cd6a0
commit 40f6d3e
Showing 1 changed file with 8 additions and 0 deletions.
diff --git a/src/renderers/dom/client/utils/setTextContent.js b/src/renderers/dom/client/utils/setTextContent.js
@@ -26,6 +26,14 @@ var setInnerHTML = require('setInnerHTML');
  * @internal
  */
 var setTextContent = function(node, text) {
+  if (text) {
+    var firstChild = node.firstChild;
+
+    if (firstChild && firstChild === node.lastChild && firstChild.nodeType === 3) {
+      firstChild.nodeValue = text;
+      return;
+    }
+  }
   node.textContent = text;
 };