로또의 최고 순위와 최저 순위

https://school.programmers.co.kr/learn/courses/30/lessons/77484

프로그래머스

function solution(lottos, win_nums) {
    var answer = [];
    let grade = [6,6,5,4,3,2,1]
    let hidden_num = 0;
    let correct_count =0;
    

    for(let i = 0; i<6; i++){
        if (lottos[i] === 0){
            
            hidden_num++;
            //console.log(i,hidden_num)
            continue;
        }
        for(let j =0; j<6; j++){
            if (lottos[i] === win_nums[j]){
            
                correct_count++;
                break;
            }            
        }
    }
    console.log(hidden_num,correct_count)
    console.log(grade[correct_count+hidden_num],grade[correct_count])
    answer.push(grade[correct_count+hidden_num],grade[correct_count])
    return answer;
}