diff --git a/src/utils/date.js b/src/utils/date.js
index 3449e57..e8608d3 100644
--- a/src/utils/date.js
+++ b/src/utils/date.js
@@ -81,7 +81,7 @@ function countPatternDaysInInterval(startDate, endDate, patternArr) {
 
 // Recurrence: Weekly ------------------------------------------------------
 function _getRecur(event) {
-  return event && event.recur ? event.recur : null
+  return event?.recur ?? null
 }
 
 function getWeeklyOccurrenceIndex(event, dateStr, timeZone = DEFAULT_TZ) {