Simple Swift NSDate Iterator

NSDate range operator

infix operator .. {}

extension NSDate {
    var components: NSDateComponents{
        var calendar = NSCalendar(calendarIdentifier: NSGregorianCalendar)
        var flags: NSCalendarUnit = .DayCalendarUnit | .WeekdayCalendarUnit | .YearCalendarUnit | .MonthCalendarUnit | .HourCalendarUnit
        
        return calendar!.components(flags, fromDate: self)
    }
}


func .. (let left:NSDate, right:NSDate) -> [NSDate]{

    let calendar = NSCalendar.currentCalendar()
    var dates:[NSDate] = [left]

    while(right.compare(dates.last!) != NSComparisonResult.OrderedSame){
        dates.append(calendar.dateByAddingUnit(NSCalendarUnit.DayCalendarUnit,
            value: 1, toDate: dates.last!, options: nil)!)
    }

    
    return dates
}


let range = NSDate..NSDate