moment get list of dates by week number
var dateformat = "YYYY/MM/DD";
function getWeekDaysByWeekNumber(weeknumber)
{
var date = moment().isoWeek(weeknumber||1).startOf("week"), weeklength=7, result=[];
while(weeklength--)
{
result.push(date.format(dateformat));
date.add(1,"day")
}
return result;
}
console.log(getWeekDaysByWeekNumber())
console.log(getWeekDaysByWeekNumber(2))
console.log(getWeekDaysByWeekNumber(25))