From cbe483f725e3de91d5b4c5e0bc26b5f4d11a3999 Mon Sep 17 00:00:00 2001
From: xobotyi <xog3@yandex.ru>
Date: Mon, 19 Nov 2018 15:56:24 +0300
Subject: [PATCH] fix for undefined value situations;

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

diff --git a/dist/index.js b/dist/index.js
index de564d9..7f102ef 100644
--- a/dist/index.js
+++ b/dist/index.js
@@ -304,11 +304,11 @@ function (_React$Component) {
       }
 
       if (this.props.scrollTop !== prevProps.scrollTop) {
-        this.contentEl.scrollTop = this.props.scrollTop;
+        this.contentEl.scrollTop = this.props.scrollTop || 0;
       }
 
       if (this.props.scrollLeft !== prevProps.scrollLeft) {
-        this.contentEl.scrollLeft = this.props.scrollLeft;
+        this.contentEl.scrollLeft = this.props.scrollLeft || 0;
       }
     }
   }, {
diff --git a/src/index.js b/src/index.js
index bcf379b..b728b09 100644
--- a/src/index.js
+++ b/src/index.js
@@ -237,11 +237,11 @@ export default class Scrollbar extends React.Component {
         }
 
         if (this.props.scrollTop !== prevProps.scrollTop) {
-            this.contentEl.scrollTop = this.props.scrollTop;
+            this.contentEl.scrollTop = this.props.scrollTop || 0;
         }
 
         if (this.props.scrollLeft !== prevProps.scrollLeft) {
-            this.contentEl.scrollLeft = this.props.scrollLeft;
+            this.contentEl.scrollLeft = this.props.scrollLeft || 0;
         }
     }