[프로그래머스] [오픈채팅방] 어피치님이 들어왔습니다. JavaScript

function setName(record){
    var nameDict ={};
    for(var i=0;i<record.length;i++){
        if(record[i][0]!=='L'){
            var temp = record[i].split(' ');
            nameDict[temp[1]] = temp[2];
        }
    }
    return nameDict;
}
function makeLog(record, nameDict){
    var log = [];
    for(var i=0;i<record.length;i++){
        if(record[i][0]==='E'){
            log.push(nameDict[record[i].split(' ')[1]]+"님이 들어왔습니다.") // temp[1] : ID
        }else if(record[i][0]==='L'){
            log.push(nameDict[record[i].split(' ')[1]]+"님이 나갔습니다.")
        }
    }
    return log;
}
function solution(record) {
    return makeLog(record, setName(record));
}