press-ui/press-calendar/utils.js

简单、易用的跨端组件库，兼容 Vue2 和 Vue3，同时支持 uni-app和普通 Vue 项目

import { t } from '../locale';

export const ROW_HEIGHT = 64;


export function formatMonthTitle(date) {
  if (!(date instanceof Date)) {
    date = new Date(date);
  }
  return t('calendar.monthTitle', date.getFullYear(), date.getMonth() + 1);
}

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;
}

export const INITIAL_MIX_DATE = getToday().getTime();

export const INITIAL_MAX_DATE = (() => {
  const now = getToday();
  return new Date(now.getFullYear(), now.getMonth() + 6, now.getDate()).getTime();
})();