[프로그래머스] lv2 크레인 인형뽑기 게임

function solution(board, moves) {
    var answer = 0;
    const bl = board.length;
    let basket = [];
    for(let a of moves){
        for(let i = 0; i < bl; i++){
            if(board[i][a-1] != 0){
                basket.push(board[i][a-1]);
                board[i][a-1] = 0;
                if(basket[basket.length-1] === basket[basket.length-2]){
                    basket.pop();
                    basket.pop();
                    answer += 2;
                }
                break;
            }
        }
    }
    return answer;
}