From 2f298c6672e013811c28dd794dcfad0f2af41e47 Mon Sep 17 00:00:00 2001
From: Dmitry Sboychakov <sboichakov@gmail.com>
Date: Tue, 14 Sep 2021 10:06:55 +0530
Subject: [PATCH] fix null safety (#401)

---
 lib/src/widgets/controller.dart | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/src/widgets/controller.dart b/lib/src/widgets/controller.dart
index b3173ed2..15104add 100644
--- a/lib/src/widgets/controller.dart
+++ b/lib/src/widgets/controller.dart
@@ -85,7 +85,7 @@ class QuillController extends ChangeNotifier {
   }
 
   void _handleHistoryChange(int? len) {
-    if (len != 0) {
+    if (len! != 0) {
       // if (this.selection.extentOffset >= document.length) {
       // // cursor exceeds the length of document, position it in the end
       // updateSelection(