class Temporal.PlainYearMonth
          
Unstable
A Temporal.PlainYearMonth represents a particular month on the calendar. For
example, it could be used to represent a particular instance of a monthly
recurring event, like "the June 2019 meeting".
See https://tc39.es/proposal-temporal/docs/yearmonth.html for more details.
readonly
[Symbol.toStringTag]: "Temporal.PlainYearMonth"
      
    readonly
calendarId: string
      
    readonly
daysInMonth: number
      
    readonly
daysInYear: number
      
    readonly
era: string | undefined
      
    readonly
eraYear: number | undefined
      
    readonly
inLeapYear: boolean
      
    readonly
month: number
      
    readonly
monthCode: string
      
    readonly
monthsInYear: number
      
    readonly
year: number
      
    
add(durationLike: ,options?: ArithmeticOptions,): Temporal.PlainYearMonth
      
    
equals(other: ): boolean
      
    
since(other: ,options?: DifferenceOptions<"year" | "month">,): Temporal.Duration
      
    
subtract(durationLike: ,options?: ArithmeticOptions,): Temporal.PlainYearMonth
      
    
toJSON(): string
      
    
toLocaleString(locales?: string | string[],options?: Intl.DateTimeFormatOptions,): string
      
    
toPlainDate(day: { day: number;  }): Temporal.PlainDate
      
    
toString(options?: ShowCalendarOption): string
      
    
until(other: ,options?: DifferenceOptions<"year" | "month">,): Temporal.Duration
      
    
valueOf(): never
      
    
with(yearMonthLike: PlainYearMonthLike,options?: AssignmentOptions,): Temporal.PlainYearMonth
      
    
compare(one: ,two: ,): ComparisonResult
      
    
from(item: ,options?: AssignmentOptions,): Temporal.PlainYearMonth