export const ROW_HEIGHT = 64; export function formatMonthTitle(date) { if (!(date instanceof Date)) { date = new Date(date); } return `${date.getFullYear()}年${date.getMonth() + 1}月`; } export function compareMonth(date1, date2) { if (!(date1 instanceof Date)) { date1 = new Date(date1); } if (!(date2 instanceof Date)) { date2 = new Date(date2); } const year1 = date1.getFullYear(); const year2 = date2.getFullYear(); const month1 = date1.getMonth(); const month2 = date2.getMonth(); if (year1 === year2) { return month1 === month2 ? 0 : month1 > month2 ? 1 : -1; } return year1 > year2 ? 1 : -1; } export function compareDay(day1, day2) { if (!(day1 instanceof Date)) { day1 = new Date(day1); } if (!(day2 instanceof Date)) { day2 = new Date(day2); } const compareMonthResult = compareMonth(day1, day2); if (compareMonthResult === 0) { const date1 = day1.getDate(); const date2 = day2.getDate(); return date1 === date2 ? 0 : date1 > date2 ? 1 : -1; } return compareMonthResult; } export function getDayByOffset(date, offset) { date = new Date(date); date.setDate(date.getDate() + offset); return date; } export function getPrevDay(date) { return getDayByOffset(date, -1); } export function getNextDay(date) { return getDayByOffset(date, 1); } export function getToday() { const today = new Date(); today.setHours(0, 0, 0, 0); return today; } export function calcDateNum(date) { const day1 = new Date(date[0]).getTime(); const day2 = new Date(date[1]).getTime(); return (day2 - day1) / (1000 * 60 * 60 * 24) + 1; } export function copyDates(dates) { if (Array.isArray(dates)) { return dates.map((date) => { if (date === null) { return date; } return new Date(date); }); } return new Date(dates); } export function getMonthEndDay(year, month) { return 32 - new Date(year, month - 1, 32).getDate(); } export function getMonths(minDate, maxDate) { const months = []; const cursor = new Date(minDate); cursor.setDate(1); do { months.push(cursor.getTime()); cursor.setMonth(cursor.getMonth() + 1); } while (compareMonth(cursor, maxDate) !== 1); return months; }