Classes can now have static methods and properties 관련

HACKING WITH SWIFT

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What's new in Swift?

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Classes can now have static methods and properties | Changes in Swift 1.2

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Classes can now have static methods and properties

Available from Swift 1.2

Swift 1.2 gives us an alias for class final properties: static. While class variables may be overridden in subclasses, static variables may not. For example:

class Student: Person {
    // THIS ISN'T ALLOWED
    override static var count: Int {
        return 150
    }

    // THIS IS ALLOWED
    override class var averageAge: Double {
        return 19.5
    }
}

In this usage, static var is merely an alias for final class var.

Other changes in Swift 1.2…

The zip() function joins two sequences | Changes in Swift 1.2

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The zip() function joins two sequences

The flatMap() method transforms optionals and arrays | Changes in Swift 1.2

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The flatMap() method transforms optionals and arrays

Closures can now be marked @noescape | Changes in Swift 1.2

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Closures can now be marked @noescape

Constants no longer require immediate initialization | Changes in Swift 1.2

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Constants no longer require immediate initialization

A new Set data structure | Changes in Swift 1.2

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A new Set data structure

Implicit bridging has been reduced | Changes in Swift 1.2

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Implicit bridging has been reduced

Multiple if let bindings | Changes in Swift 1.2

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Multiple if let bindings

Typecasting now includes as! | Changes in Swift 1.2

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Typecasting now includes as!