NSDate Comparison using Swift

swift nsdate xcode6
Henry oscannlain-miller picture Henry oscannlain-miller · Oct 5, 2014 · Viewed 89.2k times · Source

I am working on an app the requires checking the due date for homework. I want to know if a due date is within the next week, and if it is then perform an action.
Most of the documentation I could find is in Objective-C and I can't figure out how to do it in Swift. Thanks for the help!!

Answer

John Estropia picture John Estropia · Jan 23, 2015

If you want to support ==, <, >, <=, or >= for NSDates, you just have to declare this somewhere:

public func ==(lhs: NSDate, rhs: NSDate) -> Bool {
    return lhs === rhs || lhs.compare(rhs) == .OrderedSame
}

public func <(lhs: NSDate, rhs: NSDate) -> Bool {
    return lhs.compare(rhs) == .OrderedAscending
}

extension NSDate: Comparable { }

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