freight-web/src/utils/index.ts

export function formatDate(time: any, cFormat: string) {
  const format = cFormat || "{y}-{m}-{d}";
  const date = new Date(time);
  const formatObj:any = {
    //年
    y: date.getFullYear(),
    //月
    m: date.getMonth() + 1,
    //日
    d: date.getDate(),
    //小时
    h: date.getHours(),
    //分钟
    i: date.getMinutes(),
    //秒
    s: date.getSeconds(),
    //星期
    a: date.getDay(),
  };
  const time_str = format.replace(/{([ymdhisa])+}/g, (result, key) => {
    const value = formatObj[key];
    // Note: getDay() returns 0 on Sunday
    if (key === "a") {
      //如果key是a，就是星期，格式化成一~日
      //例如formatDate(new Date(), '{y}-{m}-{d}-{h}-{i}-{s}-{a}');
      //会输出2021-10-29-00-00-00-五
      //星期的value会返回0-6，['日', '一', '二', '三', '四', '五', '六'][2]代表周二
      return ["日", "一", "二", "三", "四", "五", "六"][value];
    }
    //padStart用于字符串头部补全，2个字符，如果不够前面补0
    return value.toString().padStart(2, "0");
  });
  return time_str;
}

export function getCurrentMonthStartAndEnd() {
  let now = new Date();
  let currentMonthStart = new Date(now.getFullYear(), now.getMonth(), 1);
  let currentMonthEnd = new Date(now.getFullYear(), now.getMonth() + 1, 0);

  return {
      start: currentMonthStart,
      end: currentMonthEnd
  };
}

export function getCurrentYearStartAndEnd() {
  let now = new Date();
  let currentYearStart = new Date(now.getFullYear(), 0, 1); // 0 代表一月
  let currentYearEnd = (new Date(now.getFullYear() + 1, 0, 1) as any) - 1; // 下一年的一月一日减一毫秒

  return {
      start: currentYearStart,
      end: currentYearEnd
  };
}