Javascript 上周末的返回日期
我试图让javascript返回上周五到周一的日期。现在，如果当前日期介于星期五和星期一之间，那么我想返回星期五到今天。这是我到目前为止所拥有的，但我遗漏了一些东西Javascript 上周末的返回日期,javascript,jquery,Javascript,Jquery,我试图让javascript返回上周五到周一的日期。现在，如果当前日期介于星期五和星期一之间，那么我想返回星期五到今天。这是我到目前为止所拥有的，但我遗漏了一些东西 function getPrevFriday(){ var friday = 5; var currentTime = new Date(); var month = currentTime.getMonth() + 1; var day = currentTime.getDay();
function getPrevFriday(){
var friday = 5;
var currentTime = new Date();
var month = currentTime.getMonth() + 1;
var day = currentTime.getDay();
var date = currentTime.getDate();
var year = currentTime.getFullYear();
var lastFriday = date - (friday + (7 - day)) % 7+1;
return month + "/" + lastFriday + "/" + year;
};
function getPrevMonday(){
var friday = 5;
var currentTime = new Date();
var month = currentTime.getMonth() + 1;
var day = currentTime.getDay();
var date = currentTime.getDate();
var year = currentTime.getFullYear();
var lastFriday = date - (friday + (7 - day)) % 7+4;
return month + "/" + lastFriday + "/" + year;
};
function returnPrevWeekend(){
var currentTime = new Date();
var month = currentTime.getMonth() + 1;
var day = currentTime.getDay();
var year = currentTime.getFullYear();
function returnToday(){
return month + "/" + day + "/" + year;
}
$('#from, .startDate').val(getPrevFriday());
if (day < 5 && day > 0) {
$('#to, .endDate').val(getPrevMonday());
$('.date-from').html(getPrevFriday() + ' -<br> ' + getPrevMonday());
}else {
$('#to, .endDate').val(returnToday());
$('.date-from').html(getPrevFriday() + ' -<br> ' + returnToday());
}
};
'+getPrevMonday（））； }否则{ $（'to，.endDate'）.val（returnToday（））； $（'.date from'）.html（getPrevFriday（）+'-
'+returnToday（））； } }; 类似于：
var today = new Date();
var noOfDays = 0;
// Today is friday, saturyda or sunday
if (today.getDay() >= 5) {
noOfDays = today.getDay() - 5;
} else {
// Otherwise
noOfDays = (2 + today.getDay());
}
var days = [];
for(var i = 0; i < 4; i++) {
days.push(new Date(today.getFullYear(), today.getMonth(), today.getDate() - noOfDays + i));
}
console.log(days) // Friday - Monday
var today=新日期（）；
var noOfDays=0；
//今天是星期五、星期六或星期天
如果（today.getDay（）>=5）{
noOfDays=today.getDay（）-5；
}否则{
//否则
noOfDays=（2+今天.getDay（））；
}
风险值天数=[]；
对于（变量i=0；i<4；i++）{
推送（新日期（今日.getFullYear（），今日.getMonth（），今日.getDate（）-noOfDays+i））；
}
console.log（天）//星期五-星期一
function returnPrevWeekend(){
var today = new Date();
day = today.getDay();
if (today.getDay() == 0) { //if today is sunday
x = 2; // go back to friday!
}
else if (today.getDay() == 1) { //if today is monday
x = 3; // go back to friday!
y = 0; // don't go back. return today!
}
else if (today.getDay() == 2) {//if today is tuesday
x = 4; // go back to friday!
y = 1; // go back to monday!
}
else if (today.getDay() == 3) {//if today is wednesday
x = 5; // go back to friday!
y = 2; // go back to monday!
}
else if (today.getDay() == 4) {//if today is thursday
x = 6; // go back to friday!
y = 3; // go back to monday!
}
else if (today.getDay() == 5) {//if today is friday
x = 0; // today is friday!
y = 0; // don't go back. return today!
}
else if (today.getDay() == 6) {
x = 1; // go back to friday!
y = 0; // don't go back. return today!
}
d1 = new Date(); // today!
d2 = new Date(); // today!
friday = new Date(d1.setDate(d1.getDate() - x));
lastFriday = friday.getDate();
fridayYear = new Date(friday.setFullYear(friday.getFullYear()));
fridayYear = fridayYear.getFullYear();
fridayMonth = new Date(friday.setMonth(friday.getMonth()));
fridayMonth = friday.getMonth()+1;
monday = new Date(d2.setDate(d2.getDate() - y));
lastMonday = monday.getDate();
mondayYear = new Date(monday.setFullYear(monday.getFullYear()));
mondayYear = mondayYear.getFullYear();
mondayMonth = new Date(monday.setMonth(monday.getMonth()));
mondayMonth = monday.getMonth()+1;
lastFriday = fridayMonth + "/" + lastFriday + "/" + fridayYear;
lastMonday = fridayMonth + "/" + lastMonday + "/" + mondayYear;
$('#from, .startDate').val(lastFriday);
$('#to, .endDate').val(lastMonday);
$('.date-from').html("<span class='abbrDateFrom'>" + lastFriday + "</span>" + '<p>thru</p>'+"<span class='abbrDateTo'>" + lastMonday +"</span>");
};
函数returnPrevWeekend（）{
var today=新日期（）；
day=今天。getDay（）；
if（today.getDay（）==0）{//如果今天是星期天
x=2；//回到星期五！
}
else if（today.getDay（）==1）{//如果今天是星期一
x=3；//回到星期五！
y=0；//不要回去，今天就回来！
}
else if（today.getDay（）==2）{//如果今天是星期二
x=4；//回到星期五！
y=1；//回到星期一！
}
else if（today.getDay（）==3）{//如果今天是星期三
x=5；//回到星期五！
y=2；//回到星期一！
}
else if（today.getDay（）==4）{//如果今天是星期四
x=6；//回到星期五！
y=3；//回到星期一！
}
else if（today.getDay（）==5）{//如果今天是星期五
x=0；//今天是星期五！
y=0；//不要回去，今天就回来！
}
else if（today.getDay（）==6）{
x=1；//回到星期五！
y=0；//不要回去，今天就回来！
}
d1=新日期（）；//今天！
d2=新日期（）；//今天！
星期五=新日期（d1.setDate（d1.getDate（）-x））；
lastFriday=friday.getDate（）；
fridayYear=新日期（friday.setFullYear（friday.getFullYear（））；
fridayYear=fridayYear.getFullYear（）；
fridayMonth=新日期（friday.setMonth（friday.getMonth（））；
fridayMonth=friday.getMonth（）+1；
星期一=新日期（d2.setDate（d2.getDate（）-y））；
lastMonday=monday.getDate（）；
mondayYear=新日期（星期一.setFullYear（星期一.getFullYear（））；
mondayYear=mondayYear.getFullYear（）；
mondayMonth=新日期（周一.setMonth（周一.getMonth（））；
mondayMonth=monday.getMonth（）+1；
lastFriday=周五月+“/”+上周五+“/”+周五年；
lastMonday=周五月+“/”+上周一+“/”+周一年；
$（'from，.startDate'）.val（上周五）；
$（'to，.endDate'）.val（上周一）；
$（'.date from'）.html（“+lastFriday++'thru++'+lastMonday++”）；
};