date-fns#startOfWeek JavaScript Examples

The following examples show how to use date-fns#startOfWeek. You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may check out the related API usage on the sidebar.
Example #1
Source File: CalendarWeekHeader.js    From react-nice-dates with MIT License 6 votes vote down vote up 
export default function CalendarWeekHeader({ locale, weekdayFormat }) {
  const today = new Date()

  const weekDays = eachDayOfInterval({
    start: startOfWeek(today, { locale }),
    end: endOfWeek(today, { locale })
  }).map(date => format(date, weekdayFormat, { locale }))

  return (
    <div className='nice-dates-week-header'>
      {weekDays.map(day => (
        <span key={day} className='nice-dates-week-header_day'>
          {day}
        </span>
      ))}
    </div>
  )
}
Example #2
Source File: useGrid.js    From react-nice-dates with MIT License 5 votes vote down vote up 
getStartDate = (date, locale) => startOfWeek(startOfMonth(date), { locale })
Example #3
Source File: Calendar.js    From umami with MIT License 5 votes vote down vote up 
DaySelector = ({ date, minDate, maxDate, locale, onSelect }) => {
  const dateLocale = getDateLocale(locale);
  const weekStartsOn = dateLocale?.options?.weekStartsOn || 0;
  const startWeek = startOfWeek(date, {
    locale: dateLocale,
    weekStartsOn,
  });
  const startMonth = startOfMonth(date);
  const startDay = subDays(startMonth, startMonth.getDay() - weekStartsOn);
  const month = date.getMonth();
  const year = date.getFullYear();

  const daysOfWeek = [];
  for (let i = 0; i < 7; i++) {
    daysOfWeek.push(addDays(startWeek, i));
  }

  const days = [];
  for (let i = 0; i < 35; i++) {
    days.push(addDays(startDay, i));
  }

  return (
    <table>
      <thead>
        <tr>
          {daysOfWeek.map((day, i) => (
            <th key={i} className={locale}>
              {dateFormat(day, 'EEE', locale)}
            </th>
          ))}
        </tr>
      </thead>
      <tbody>
        {chunk(days, 7).map((week, i) => (
          <tr key={i}>
            {week.map((day, j) => {
              const disabled = isBefore(day, minDate) || isAfter(day, maxDate);
              return (
                <td
                  key={j}
                  className={classNames({
                    [styles.selected]: isSameDay(date, day),
                    [styles.faded]: day.getMonth() !== month || day.getFullYear() !== year,
                    [styles.disabled]: disabled,
                  })}
                  onClick={!disabled ? () => onSelect(day) : null}
                >
                  {day.getDate()}
                </td>
              );
            })}
          </tr>
        ))}
      </tbody>
    </table>
  );
}
Example #4
Source File: date.js    From umami with MIT License 5 votes vote down vote up 
export function getDateRange(value, locale = 'en-US') {
  const now = new Date();
  const dateLocale = getDateLocale(locale);

  const match = value.match(/^(?<num>[0-9]+)(?<unit>hour|day|week|month|year)$/);

  if (!match) return;

  const { num, unit } = match.groups;

  if (+num === 1) {
    switch (unit) {
      case 'day':
        return {
          startDate: startOfDay(now),
          endDate: endOfDay(now),
          unit: 'hour',
          value,
        };
      case 'week':
        return {
          startDate: startOfWeek(now, { locale: dateLocale }),
          endDate: endOfWeek(now, { locale: dateLocale }),
          unit: 'day',
          value,
        };
      case 'month':
        return {
          startDate: startOfMonth(now),
          endDate: endOfMonth(now),
          unit: 'day',
          value,
        };
      case 'year':
        return {
          startDate: startOfYear(now),
          endDate: endOfYear(now),
          unit: 'month',
          value,
        };
    }
  }

  switch (unit) {
    case 'day':
      return {
        startDate: subDays(startOfDay(now), num - 1),
        endDate: endOfDay(now),
        unit,
        value,
      };
    case 'hour':
      return {
        startDate: subHours(startOfHour(now), num - 1),
        endDate: endOfHour(now),
        unit,
        value,
      };
  }
}