Swift 3 - Comparing Date objects

Question

I\'m updating my app to Swift 3.0 syntax (I know it\'s still in beta but I want to be prepared as soon as it released).

Until the previous Beta of Xcode (Beta 5) I wa

Answer 1

As of the time of this writing, Swift natively supports comparing Dates with all comparison operators (i.e. <, <=, ==, >=, and >). You can also compare optional Dates but are limited to <, ==, and >. If you need to compare two optional dates using <= or >=, i.e.

let date1: Date? = ...
let date2: Date? = ...
if date1 >= date2 { ... }

You can overload the <= and >=operators to support optionals:

func <= (lhs: T?, rhs: T?) -> Bool {
    return lhs == rhs || lhs < rhs
}

func >= (lhs: T?, rhs: T?) -> Bool {
    return lhs == rhs || lhs > rhs
}