NSDate (Compare)

NSDate+Compare.swift

// MARK: NSDate + Compare
public func <(a: NSDate, b: NSDate) -> Bool {
    return a.compare(b) == .OrderedAscending
}

public func ==(a: NSDate, b: NSDate) -> Bool {
    return a.compare(b) == .OrderedSame
}

extension NSDate: Comparable { }



extension NSDate {
    func isGreaterThan(date: NSDate) -> Bool {
        return self.compare(date) == .OrderedDescending
    }
    func isLessThan(date: NSDate) -> Bool {
        return self.compare(date) == .OrderedAscending
    }
    
    var year: Int {
        let calendar = NSCalendar.currentCalendar()
        return calendar.component(.Year, fromDate: self)
    }
    
    var month: Int {
        let calendar = NSCalendar.currentCalendar()
        return calendar.component(.Month, fromDate: self)
    }
    
    var day: Int {
        let calendar = NSCalendar.currentCalendar()
        return calendar.component(.Day, fromDate: self)
    }
}