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Chapter 11 WebScript Programmer’s Quick Reference to Foundation Classes

208

Representing Dates as Strings

– description

Returns a string representation of the NSCalendarDate formatted

according to the NSCalendarDate’s default calendar format.

– descriptionWithCalendarFormat:

Returns a string representation of the receiver formatted according to

the provided format string.

– calendarFormat

Returns a string that indicates the receiver’s default calendar format.

See “Date Conversion Speciﬁers” (page 206) for more detailed

information on formats used by NSCalendarDate.

– setCalendarFormat:

Set the receiver’s default calendar format to the provided string.

Retrieving Date Elements

– dayOfWeek

Returns a number that indicates the NSCalendarDate’s day of the

week (0–6).

– dayOfMonth

Returns the NSCalendarDate’s day of the month (1–31).

– dayOfYear

Returns a number that indicates the NSCalendarDate’s day of the year

(1–366).

– dayOfCommonEra

Returns the NSCalendarDate’s number of days since the beginning of

the Common Era. The base year of the Common Era is 1 A.C.E.

(which is the same as 1 A.D.).

– monthOfYear

Returns a number that indicates the NSCalendarDate’s month of the

year (1–12).

– yearOfCommonEra

Returns the NSCalendarDate’s year value (including the century).

– hourOfDay

Returns the NSCalendarDate’s hour value (0–23).

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Apple WebObjects 3.5 Manual de usuario Pagina 208