DefinitelyTyped/types/react-datepicker/react-datepicker-tests.tsx

import * as React from 'react';
import DatePicker, {
	registerLocale,
	setDefaultLocale,
	getDefaultLocale,
} from 'react-datepicker';
import enUS from 'date-fns/locale/en-US';

registerLocale('en-GB', { options: { weekStartsOn: 1 } });
setDefaultLocale('en-GB');
const defaultLocale = getDefaultLocale();

<DatePicker
	adjustDateOnChange
	allowSameDay
	autoComplete=""
	autoFocus
	calendarClassName=""
	calendarContainer={props => <div />}
	className=""
	clearButtonTitle=""
	customInput={<input />}
	customInputRef=""
	dateFormat=""
	dateFormatCalendar=""
	dayClassName={date => ''}
	disabled
	disabledKeyboardNavigation
	dropdownMode="scroll"
	endDate={new Date()}
	excludeDates={[new Date()]}
	excludeTimes={[new Date()]}
	filterDate={date => true}
	fixedHeight
	forceShowMonthNavigation
	formatWeekDay={formattedDate => formattedDate[0]}
	formatWeekNumber={date => 0}
	highlightDates={[{ someClassName: [new Date()]}]}
	id=""
	includeDates={[new Date()]}
	includeTimes={[new Date()]}
	injectTimes={[new Date()]}
	inline
	isClearable
	locale=""
	maxDate={new Date()}
	maxTime={new Date()}
	minDate={new Date()}
	minTime={new Date()}
	monthsShown={1}
	name=""
	nextMonthButtonLabel=""
	onBlur={event => null}
	onChange={(date: Date | null) => {}}
	onChangeRaw={event => null}
	onClickOutside={event => null}
	onFocus={event => null}
	onInputClick={() => null}
	onInputError={err => err.code + err.msg}
	onKeyDown={event => null}
	onMonthChange={date => null}
	onSelect={(date, event) => null}
	onWeekSelect={(firstDayOfWeek, weekNumber, event) => null}
	onYearChange={(date: Date) => {}}
	open
	openToDate={new Date()}
	peekNextMonth
	placeholderText=""
	popperClassName=""
	popperContainer={props => <div />}
	popperModifiers={{
		flip: {
			enabled: false,
		},
	}}
	popperPlacement=""
	popperProps={{}}
	preventOpenOnFocus
	previousMonthButtonLabel=""
    readOnly
    ref={handleRef}
	renderCustomHeader={({
		date,
		changeYear,
		changeMonth,
		decreaseMonth,
		increaseMonth,
		prevMonthButtonDisabled,
		nextMonthButtonDisabled,
	}) => <div />}
	renderDayContents={dayOfMonth => <div />}
	required
	scrollableMonthYearDropdown
	scrollableYearDropdown
	selected={new Date()}
	selectsEnd
	selectsStart
	shouldCloseOnSelect
	showDisabledMonthNavigation
	showMonthDropdown
	showMonthYearDropdown
	showMonthYearPicker
	showTimeSelect
	showTimeSelectOnly
	showWeekNumbers
	showYearDropdown
	startDate={new Date()}
	startOpen
	tabIndex={1}
	timeCaption=""
	timeFormat=""
	timeIntervals={1}
	title=""
	todayButton={<div />}
	useShortMonthInDropdown
	useWeekdaysShort
	value=""
	weekLabel=""
	withPortal
	yearDropdownItemNumber={1}
	timeInputLabel=""
	inlineFocusSelectedMonth={false}
	onDayMouseEnter={(date: Date) => {}}
	onMonthMouseLeave={() => {}}
>
	<div />
	<span />
</DatePicker>;

<DatePicker
    minDate={null}
    maxDate={null}
    startDate={null}
    endDate={null}
    locale={enUS}
    onChange={() => null}
/>;

function handleRef(ref: DatePicker | null) {
    if (ref) {
        ref.setBlur();
        ref.setFocus();
        if (ref.isCalendarOpen()) {
            ref.setOpen(false);
        }
    }
}