From cd7063e7d4844d4b770c916f4ae6e88fbd4efa49 Mon Sep 17 00:00:00 2001
From: Guillaume Chau <guillaume.b.chau@gmail.com>
Date: Mon, 17 Oct 2022 10:22:41 +0200
Subject: [PATCH] fix: height NaN, fix #757

---
 .../src/components/RecycleScroller.vue                 | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/packages/vue-virtual-scroller/src/components/RecycleScroller.vue b/packages/vue-virtual-scroller/src/components/RecycleScroller.vue
index 46b23a56..247af334 100644
--- a/packages/vue-virtual-scroller/src/components/RecycleScroller.vue
+++ b/packages/vue-virtual-scroller/src/components/RecycleScroller.vue
@@ -355,7 +355,7 @@ export default {
 
     updateVisibleItems (checkItem, checkPositionDiff = false) {
       const itemSize = this.itemSize
-      const gridItems = this.gridItems
+      const gridItems = this.gridItems || 1
       const itemSecondarySize = this.itemSecondarySize || itemSize
       const minItemSize = this.$_computedMinItemSize
       const typeField = this.typeField
@@ -654,9 +654,11 @@ export default {
 
     addListeners () {
       this.listenerTarget = this.getListenerTarget()
-      this.listenerTarget.addEventListener('scroll', this.handleScroll, supportsPassive ? {
-        passive: true,
-      } : false)
+      this.listenerTarget.addEventListener('scroll', this.handleScroll, supportsPassive
+        ? {
+            passive: true,
+          }
+        : false)
       this.listenerTarget.addEventListener('resize', this.handleResize)
     },