From 78f65021fb67c774e9f48dc7ec63ae65d2449eb2 Mon Sep 17 00:00:00 2001
From: Adi Dahiya <adi.dahiya14@gmail.com>
Date: Wed, 26 Feb 2020 16:56:47 -0500
Subject: [PATCH] =?UTF-8?q?[datetime]=20fix(DateRange):=20values=20are=20p?=
 =?UTF-8?q?ossibly=20null,=20not=20undefi=E2=80=A6=20(#3983)?=
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fixes #3970
---
 packages/datetime/src/common/dateUtils.ts | 2 +-
 packages/datetime/src/dateRangePicker.tsx | 5 +++--
 2 files changed, 4 insertions(+), 3 deletions(-)

diff --git a/packages/datetime/src/common/dateUtils.ts b/packages/datetime/src/common/dateUtils.ts
index 278d6f738c..aeab64aa00 100644
--- a/packages/datetime/src/common/dateUtils.ts
+++ b/packages/datetime/src/common/dateUtils.ts
@@ -16,7 +16,7 @@
 
 import { Months } from "./months";
 
-export type DateRange = [Date | undefined, Date | undefined];
+export type DateRange = [Date | null, Date | null];
 
 export function isDateValid(date: Date | false | null): date is Date {
     return date instanceof Date && !isNaN(date.valueOf());
diff --git a/packages/datetime/src/dateRangePicker.tsx b/packages/datetime/src/dateRangePicker.tsx
index 6465c13838..bda4374b61 100644
--- a/packages/datetime/src/dateRangePicker.tsx
+++ b/packages/datetime/src/dateRangePicker.tsx
@@ -347,7 +347,8 @@ export class DateRangePicker extends AbstractPureComponent2<IDateRangePickerProp
     }
 
     private handleTimeChange = (newTime: Date, dateIndex: number) => {
-        Utils.safeInvoke(this.props.timePickerProps.onChange, newTime);
+        this.props.timePickerProps?.onChange?.(newTime);
+
         const { value, time } = this.state;
         const newValue = DateUtils.getDateTime(
             value[dateIndex] != null ? DateUtils.clone(value[dateIndex]) : new Date(),
@@ -357,7 +358,7 @@ export class DateRangePicker extends AbstractPureComponent2<IDateRangePickerProp
         newDateRange[dateIndex] = newValue;
         const newTimeRange: DateRange = [time[0], time[1]];
         newTimeRange[dateIndex] = newTime;
-        Utils.safeInvoke(this.props.onChange, newDateRange);
+        this.props.onChange?.(newDateRange);
         this.setState({ value: newDateRange, time: newTimeRange });
     };