From 66cee186a3f1c7a905036d1eb71e996fdc239dcd Mon Sep 17 00:00:00 2001
From: Tanner Linsley <tannerlinsley@gmail.com>
Date: Fri, 27 Jan 2017 14:34:50 -0700
Subject: [PATCH] pivotBy prop now defaults to undefined

---
 src/index.js | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/index.js b/src/index.js
index e131e97..0913509 100644
--- a/src/index.js
+++ b/src/index.js
@@ -28,7 +28,7 @@ export const ReactTableDefaults = {
   onSortingChange: undefined,
 
   // Pivoting
-  pivotBy: [],
+  pivotBy: undefined,
   pivotColumnWidth: 200,
   pivotValKey: '_pivotVal',
   pivotIDKey: '_pivotID',
@@ -691,7 +691,7 @@ export default React.createClass({
   getDataModel (nextProps, nextState) {
     const {
       columns,
-      pivotBy,
+      pivotBy = [],
       data,
       pivotIDKey,
       pivotValKey,