From 8ae3ee382f2ba4920d27d770699a840b3d6490e3 Mon Sep 17 00:00:00 2001
From: hardfist <yangjianzju@gmail.com>
Date: Fri, 6 Oct 2017 19:54:08 -0500
Subject: [PATCH] Update implementation-notes.md

prevChild could be CompositeComponent which cause prevChild.node to be undefined.
---
 content/docs/implementation-notes.md | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/content/docs/implementation-notes.md b/content/docs/implementation-notes.md
index 0c795a1b0..b1d7cd4d8 100644
--- a/content/docs/implementation-notes.md
+++ b/content/docs/implementation-notes.md
@@ -750,7 +750,7 @@ We collect DOM operations on children in a list so we can execute them in batch:
       // If we can't update an existing instance, we have to unmount it
       // and mount a new one instead of it.
       if (!canUpdate) {
-        var prevNode = prevChild.node;
+        var prevNode = prevChild.getHostNode();
         prevChild.unmount();
 
         var nextChild = instantiateComponent(nextChildren[i]);
@@ -771,7 +771,7 @@ We collect DOM operations on children in a list so we can execute them in batch:
     // Finally, unmount any children that don't exist:
     for (var j = nextChildren.length; j < prevChildren.length; j++) {
      var prevChild = prevRenderedChildren[j];
-     var node = prevChild.node;
+     var node = prevChild.getHostNode();
      prevChild.unmount();
 
      // Record that we need to remove the node