如何从[(String?,[Contact])]()获取联系人数组？

我var contacts = [(String?, [Contact])]()需要提取所有联系人数组以将其var filteredContacts = [Contact]()放入搜索逻辑中。更新 Account 和 Accounts 对象 //Account

struct Account: Codable {
    var id, displayName:String
    var contacts: [Contact]?
...
}

//账户

struct Accounts: Codable {
    let accounts: [Account]
...
}


        switch result {
        case .success(let result):
            
            self.accounts = result.accounts
            self.contacts  = Array(result.accounts
                .compactMap { account in account.contacts.map { (account.displayName , $0) } }.dropFirst())
            self.filteredContacts = ??

回答

self.filteredContacts = contacts.flatMap(.1) // for older swift syntax you can use `flatMap { $1 }`