filter server response - only add

struct Entry {
    let id : String
    var checked : Bool
    init(_ dic : [String: String]) {
        id = dic["id"]!
    }
}
//add to local array if not exist on local
func addNewEntry(_ response : [[String : String]], _ localArr: inout [Entry] ){

    let localIDset = Set<String>(localArr.reduce([String]()){ $0 + [$1.id] })
    for item in response{
        if !localIDset.contains(item["id"]!){
            localArr.append(Entry(item))
        }
    }
}

// remove on local array if not exist on server


let resp = [["id" : "123"],["id" : "3"],["id" : "23"]]
var localArray = [Entry]()

addNewEntry(resp, &localArray)

print(localArray)