fix(VCalendar): always assign default first day of week (#20378)

fixes #19999
vuetifyjs · Jan 24, 2025 · 9d881b2 · 9d881b2
1 parent d1ed47c
commit 9d881b2
Showing 1 changed file with 5 additions and 2 deletions.
diff --git a/packages/vuetify/src/composables/calendar.ts b/packages/vuetify/src/composables/calendar.ts
@@ -93,14 +93,17 @@ export function useCalendar (props: CalendarProps) {
     v => adapter.getMonth(v)
   )
 
+  const defaultFirstDayOfWeek = computed(() => {
+    return props.firstDayOfWeek ?? props.weekdays[0]
+  })
+
   const weekDays = computed(() => {
     const firstDayOfWeek = Number(props.firstDayOfWeek ?? 0)
-
     return props.weekdays.map(day => (day + firstDayOfWeek) % 7)
   })
 
   const weeksInMonth = computed(() => {
-    const weeks = adapter.getWeekArray(month.value, props.firstDayOfWeek)
+    const weeks = adapter.getWeekArray(month.value, defaultFirstDayOfWeek.value)
 
     const days = weeks.flat()