javascript - MomentJS code does not start a new week -

$(function() { function whenisreset() {     var = moment.utc();     var eventstart = moment.utc().day(2).hour(9).minute(00).second(00).millisecond(00);     var eventstartnewweek = moment.utc().day(-4).hour(00).minute(00).second(00).millisecond(00);     var eventend = moment.utc().day(3).hour(9).minute(00).second(00).millisecond(00);     var eventendnewweek = moment.utc().day(-4).hour(9).minute(00).second(00).millisecond(00);      if (now.isafter(eventend)) {         eventstart = eventstartnewweek;         eventend = eventendnewweek;     }     if (now.isbefore(eventstart)) {         $('#resettime').text('resets ' + eventstart.from(now));     }      if (now.isafter(eventstart) && now.isbefore(eventend)) {         $('#resettime').text('reset ' + eventstart.from(now));     } }  whenisreset();     setinterval(whenisreset, 1000); }); 

i using 'momentjs'.

the above code supposed to: - set 'tuesday [9am]' start - set 'wednesday [9am]' end - if time before 'start' shows time 'start' - if time after 'start' , before 'end' show time since 'start' - if time after 'end' should set 'start' , 'end' next week. (so can repeated).

now, works. however, after event has ended, not repeat , goes blank.

this 1 clasic. set values eventstartnewweek , eventendnewweek once, , therefore value not recalculated when assign them different variable.

eventstart = eventstartnewweek; eventend = eventendnewweek; 

you instance create function , call everytime need create new eventstartnewweek or eventendnewweek.

function eventstartnewweek () {       return moment.utc().day(-4).hour(00).minute(00).second(00).millisecond(00);  };  function eventendnewweek () {      return moment.utc().day(-4).hour(9).minute(00).second(00).millisecond(00); };  // assign them if (now.isafter(eventend)) {     eventstart = eventstartnewweek();     eventend = eventendnewweek(); }