filter server response - add + delete

class Entry{
    let id : String
    var checked : Bool
    init(_ dic : [String: String]) {
        id = dic["id"]!
    }
}
//add to local array if not exist on local,
func addNewEntryAndRemove(_ response : [[String : String]], _ localArr: inout [Entry] ){
    var localMap = [String : Bool]()  // id : isOnServer
    for entry in localArr{
        localMap[entry.id] = false
    }
    for item in response{
        let itemId = item["id"]!
        if localMap[itemId] == nil{     //mark as onserver
            localArr.append(Entry(item)) //add to local array if not exist on local,
        }
        localMap[itemId] = true
    }

    //filter not on server item
    localArr = localArr.filter({
        localMap[$0.id] == true
    })
}




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


let resp2 = [["id" : "123"],["id" : "3"]]
addNewEntryAndRemove(resp2, &localArray)


for entry in localArray{
    print(entry.id)
    print()
}