I’ve made two attempts at this problem, I’m wondering how I can improve each of them and which approach is better.

1st attempt

///Orders parsed numbers by correctProvider -> unknownProvider -> incorrectProvider. If the users location can be idenitified we then order these subsets so the numbers for the users location are on top. private static func sortParsedNumbers(meeting: Meeting) -> [String] {     let unknownProviderNumbers = meeting.phoneNumbers.filter { ConferenceNumberDirectory.findProvider(forNumber: $  0) == .unknown }     var correctProviderNumbers = meeting.phoneNumbers.filter { ConferenceNumberDirectory.findProvider(forNumber: $  0) == meeting.conferenceProvider }     let incorrectProviderNumbers = meeting.phoneNumbers.filter { !unknownProviderNumbers.contains($  0) && !correctProviderNumbers.contains($  0) }      if let userCountry = getUserLocation() {         let userAndNumberLocationMatch = {ConferenceNumberDirectory.findCountryISOCodes(forNumber: $  0).contains(userCountry)}         let matchingLocationNumbers = correctProviderNumbers.filter(userAndNumberLocationMatch)         let nonMatchingLocationNumbers = correctProviderNumbers.filter {matchingLocationNumbers.contains($  0)}         correctProviderNumbers = matchingLocationNumbers + nonMatchingLocationNumbers     }     return correctProviderNumbers + unknownProviderNumbers + incorrectProviderNumbers 

2nd attempt

///Orders parsed numbers by correctProvider -> unknownProvider -> incorrectProvider. If the users location can be idenitified we then order these subsets so the numbers for the users location are on top.     private static func sortParsedNumbers(meeting: Meeting) -> [String] {      guard let userCountry = getUserLocation() else {         let numbersOrderedByProvider = meeting.phoneNumbers.sorted {element,_ in ConferenceNumberDirectory.findProvider(forNumber: element) == .unknown }             .sorted {element,_ in ConferenceNumberDirectory.findProvider(forNumber: element) == meeting.conferenceProvider}         return numbersOrderedByProvider     }      let numbersOrderedByLocation = meeting.phoneNumbers.sorted(by: {x,_ -> Bool in ConferenceNumberDirectory.findCountryISOCodes(forNumber: x).contains(userCountry)} )     let numbersOrderedByLocationAndProvider = numbersOrderedByLocation.sorted {ConferenceNumberDirectory.findProvider(forNumber: $  0) == .unknown && ConferenceNumberDirectory.findProvider(forNumber: $  1) != .unknown }         .sorted {ConferenceNumberDirectory.findProvider(forNumber: $  0) == meeting.conferenceProvider && ConferenceNumberDirectory.findProvider(forNumber: $  1) != meeting.conferenceProvider}     return numbersOrderedByLocationAndProvider }