Fix TypeError: undefined is not an object in getMonthsMap function

fixes #110
miles-no · Apr 18, 2024 · b70779d · b70779d
1 parent 972086b
commit b70779d
Showing 1 changed file with 6 additions and 4 deletions.
diff --git a/kabinizer-front-end/src/utils/calendar.ts b/kabinizer-front-end/src/utils/calendar.ts
@@ -113,11 +113,13 @@ export const getMonthsMap = (data: Option[]): MonthMapType => {
   const weeksMap = getWeeksMap(data);
 
   for (const week in weeksMap) {
-    const month = weeksMap[week][0].month;
-    if (!monthsMap[month]) {
-      monthsMap[month] = {};
+    if (weeksMap[week] && weeksMap[week].length > 0) {
+      const month = weeksMap[week][0].month;
+      if (!monthsMap[month]) {
+        monthsMap[month] = {};
+      }
+      monthsMap[month][Number(week)] = weeksMap[week];
     }
-    monthsMap[month][Number(week)] = weeksMap[week];
   }
 
   return monthsMap;