Number of days in the current month using iOS?

Question

How can I get the current number of days in the current month using NSDate or something similar in Cocoa touch?

Answer 1

Swift syntax:

let date = NSDate()
let cal = NSCalendar(calendarIdentifier:NSCalendarIdentifierGregorian)!
let days = cal.rangeOfUnit(.CalendarUnitDay, inUnit: .CalendarUnitMonth, forDate: date)