fenzhi-utils/globalMethods/CustomDate/CustomMonthRate.js

分值前端项目的js函数库

/**
 * 获取时间所在月份起止日期
 * @param {date} params 时间，不传默认当前
 * @returns {array}
 */
/**
CustomMonthRate(); // ['2023-3-01', '2023-3-31']
CustomMonthRate('2023-05-01'); // ['2023-5-01', '2023-5-31']
CustomMonthRate('2023-05-31'); // ['2023-5-01', '2023-5-31']
CustomMonthRate(new Date()); // ['2023-3-01', '2023-3-31']
CustomMonthRate('2023-02-21'); //  ['2023-2-01', '2023-2-28']
 */
export function CustomMonthRate(params) {
  let date;
  if (!arguments.length) {
    date = new Date();
  } else {
    if ([null, '', undefined].includes(params)) {
      return ['', ''];
    } else {
      date = new Date(params);
    }
  }
  const year = date.getFullYear();
  const month = date.getMonth() + 1;
  const lastDate = new Date(year, month, 0).getDate();
  return [`${year}-${month}-01`, `${year}-${month}-${lastDate}`];
}