WebTemporalTemporal.PlainDate.prototype.toPlainYearMonthmethod Temporal.PlainDate.prototype.toPlainYearMonth#PlainDate.prototype.toPlainYearMonth(): Temporal.PlainYearMonthReturn Type #Temporal.PlainYearMonth
method Temporal.PlainDate.prototype.toPlainYearMonth#PlainDate.prototype.toPlainYearMonth(): Temporal.PlainYearMonthReturn Type #Temporal.PlainYearMonth