[Programmers] (Javascript) 크레인 인형뽑기

function solution(board, moves) {
    var answer = 0;
    var result = [];

    for(const e of moves)
    {
        var floor = e - 1;
        for(var i =0; i< board.length; i++)
        {
            var data = board[i][floor];

            if (data !== 0)
            {
                if (result.length === 0)
                {
                    result.push(data);
                }
                else
                {
                    var trg = result.pop();

                    if (trg === data)
                    {
                        answer += 2
                    }
                    else
                    {
                        result.push(trg);
                        result.push(data);
                    }
                }

                board[i][floor] = 0;
                break            
            }
        }
    }
    return answer;
}