forked from github/plane
91 lines
2.9 KiB
TypeScript
91 lines
2.9 KiB
TypeScript
// Generating the date by using the year, month, and day
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export const generateDate = (day: number, month: number, year: number) => new Date(year, month, day);
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// Getting the number of days in a month
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export const getNumberOfDaysInMonth = (month: number, year: number) => {
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const date = new Date(year, month, 1);
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date.setMonth(date.getMonth() + 1);
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date.setDate(date.getDate() - 1);
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return date.getDate();
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};
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// Getting the week number by date
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export const getWeekNumberByDate = (date: Date) => {
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const firstDayOfYear = new Date(date.getFullYear(), 0, 1);
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const daysOffset = firstDayOfYear.getDay();
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const firstWeekStart = firstDayOfYear.getTime() - daysOffset * 24 * 60 * 60 * 1000;
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const weekStart = new Date(firstWeekStart);
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const weekNumber = Math.floor((date.getTime() - weekStart.getTime()) / (7 * 24 * 60 * 60 * 1000)) + 1;
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return weekNumber;
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};
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// Getting all weeks between two dates
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export const getWeeksByMonthAndYear = (month: number, year: number) => {
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const weeks = [];
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const startDate = new Date(year, month, 1);
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const endDate = new Date(year, month + 1, 0);
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const currentDate = new Date(startDate.getTime());
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currentDate.setDate(currentDate.getDate() + ((7 - currentDate.getDay()) % 7));
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while (currentDate <= endDate) {
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weeks.push({
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year: year,
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month: month,
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weekNumber: getWeekNumberByDate(currentDate),
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startDate: new Date(currentDate.getTime()),
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endDate: new Date(currentDate.getTime() + 6 * 24 * 60 * 60 * 1000),
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});
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currentDate.setDate(currentDate.getDate() + 7);
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}
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return weeks;
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};
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// Getting all dates in a week by week number and year
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export const getAllDatesInWeekByWeekNumber = (weekNumber: number, year: number) => {
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const januaryFirst = new Date(year, 0, 1);
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const firstDayOfYear =
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januaryFirst.getDay() === 0 ? januaryFirst : new Date(year, 0, 1 + (7 - januaryFirst.getDay()));
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const startDate = new Date(firstDayOfYear.getTime());
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startDate.setDate(startDate.getDate() + 7 * (weekNumber - 1));
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var datesInWeek = [];
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for (var i = 0; i < 7; i++) {
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const currentDate = new Date(startDate.getTime());
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currentDate.setDate(currentDate.getDate() + i);
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datesInWeek.push(currentDate);
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}
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return datesInWeek;
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};
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// Getting the dates between two dates
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export const getDatesBetweenTwoDates = (startDate: Date, endDate: Date) => {
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const dates = [];
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const startYear = startDate.getFullYear();
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const startMonth = startDate.getMonth();
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const endYear = endDate.getFullYear();
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const endMonth = endDate.getMonth();
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const currentDate = new Date(startYear, startMonth);
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while (currentDate <= endDate) {
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const currentYear = currentDate.getFullYear();
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const currentMonth = currentDate.getMonth();
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dates.push(new Date(currentYear, currentMonth));
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currentDate.setMonth(currentDate.getMonth() + 1);
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}
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if (endYear === currentDate.getFullYear() && endMonth === currentDate.getMonth()) dates.push(endDate);
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return dates;
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};
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