The daysInWeek accessor property of Temporal.PlainDateTime instances returns a positive integer representing the number of days in the week of this date. It is calendar-dependent.
The set accessor of daysInWeek is undefined. You cannot change this property directly.
For general information and more examples, see Temporal.PlainDate.prototype.daysInWeek.
const dt = Temporal.PlainDateTime.from("2021-07-01");
console.log(dt.daysInWeek); // 7Temporal.PlainDateTimeTemporal.PlainDateTime.prototype.with()Temporal.PlainDateTime.prototype.add()Temporal.PlainDateTime.prototype.subtract()Temporal.PlainDateTime.prototype.yearOfWeekTemporal.PlainDateTime.prototype.weekOfYearTemporal.PlainDateTime.prototype.dayOfWeekTemporal.PlainDateTime.prototype.daysInMonthTemporal.PlainDateTime.prototype.daysInYearTemporal.PlainDate.prototype.daysInWeek