swift4.0DeviceToken

func application(_ application: UIApplication, didRegisterForRemoteNotificationsWithDeviceToken deviceToken: Data) { let token: NSMutableString = NSMutableString(format: "%@", deviceToken as CVarArg) token.replaceOccurrences(of: " ", with: "", options: NSString.CompareOptions.caseInsensitive, range: NSMakeRange(0, token.length)) token.replaceOccurrences(of: "<", with: "", options: NSString.CompareOptions.caseInsensitive, range: NSMakeRange(0, token.length)) token.replaceOccurrences(of: ">", with: "", options: NSString.CompareOptions.caseInsensitive, range: NSMakeRange(0, token.length)) print("token",token); }