apodViewModel = makeApodViewModel(apodData: response.apodData) output.displayApod(viewModel: apodViewModel) } private func makeApodViewModel(apodData: ApodData) -> ApodDataViewModel { let title = apodData.title let date = dateToString(date: apodData.date) let explanation = apodData.explanation let copyright = apodData.copyright return ApodDataViewModel(title: title, date: date, explanation: explanation, copyright: copyright) } }