根据年和周数，返回这周起止时间
作者：互联网
// 返回星期一和星期日
getWeekRange(yearNo: number, weekNo: number): any {
let firstDayofYear = new Date(yearNo, 0, 1);
if (firstDayofYear.getDay() > 4) {
let weekStart = new Date(yearNo, 0, 1 + (weekNo - 1) * 7 - firstDayofYear.getDay() + 8);
let weekEnd = new Date(yearNo, 0, 1 + (weekNo - 1) * 7 - firstDayofYear.getDay() + 8 + 6);
return { startDay: this.dateFormatter(weekStart), endDay: this.dateFormatter(weekEnd) };
}
else {
let weekStart = new Date(yearNo, 0, 1 + (weekNo - 1) * 7 - firstDayofYear.getDay() + 1);
let weekEnd = new Date(yearNo, 0, 1 + (weekNo - 1) * 7 - firstDayofYear.getDay() + 1 + 6);
return { startDay: weekStart, endDay: weekEnd };
}
}
标签：返回,firstDayofYear,起止,周数,yearNo,weekNo,getDay,Date,new 来源： https://www.cnblogs.com/gaosj20210301/p/16502553.html