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Swiftでもカテゴリー的なクラス拡張したいよね.

Posted at

extension使えば良いだけですね.
シンプルになりましたね.

extension NSString {
    func toURL() -> NSURL {
        return NSURL.URLWithString(self);
    }
    ...
}

良かった良かった.
出来なくなったらどうしようかと.

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