문제

풀이

function solution(id_pw, db) {
    var answer = '';
    let userId = id_pw[0];
    let userPw = id_pw[1];
    
    for(let item of db) {
        if(item[0] === userId) {
            if(item[1] === userPw) {
                answer = "login"; 
                break;
            } else {
                answer = "wrong pw";
                break;
            }
        } else {
            answer = "fail";
        }
    }
    return answer;
}