final class DeviceConst { let osName = "iOS" // NOTE: コストの高い変数(定数)は、lazy をつけてクラスの初期化コストを抑えた方が良さそう(遅延評価) // 但し、このは場合は大した処理でもないのでほとんど変わらないと思いますが。。。 lazy var osVersion = UIDevice.currentDevice().systemVersion lazy var appVersion = NSBundle.mainBundle().infoDictionary?["CFBundleShortVersionString"] as? String ?? "" lazy var appName = NSBundle.mainBundle().infoDictionary?["CFBundleName"] as? String ??
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