From 73f751f90f1a4f1535f26a4f8862e9ba5194a626 Mon Sep 17 00:00:00 2001
From: Jusung Hwang <hbh2692@naver.com>
Date: Thu, 14 Jul 2022 01:58:59 +0900
Subject: [PATCH] fix: fix gap value type and add optional chaining (#711)

---
 src/Grid.tsx | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/src/Grid.tsx b/src/Grid.tsx
index 1d5241834..9c9eef7c5 100644
--- a/src/Grid.tsx
+++ b/src/Grid.tsx
@@ -240,12 +240,12 @@ export { Grid }
 const Scroller = buildScroller({ usePublisher, useEmitterValue, useEmitter })
 const WindowScroller = buildWindowScroller({ usePublisher, useEmitterValue, useEmitter })
 
-function resolveGapValue(property: string, value: string, log: Log) {
-  if (value !== 'normal' && !value.endsWith('px')) {
+function resolveGapValue(property: string, value: string | undefined, log: Log) {
+  if (value !== 'normal' && !value?.endsWith('px')) {
     log(`${property} was not resolved to pixel value correctly`, value, LogLevel.WARN)
   }
   if (value === 'normal') {
     return 0
   }
-  return parseInt(value, 10)
+  return parseInt(value ?? '0', 10)
 }