[프로그래머스]로또의 최고 순위와 최저 순위 (javascript,자바스크립트)

문제

풀이 1

function solution(lottos, win_nums) {
    var answer = [];
    let count = 0
    let zero  = 0
    let min
    let max
    const rank = {
        '6' : 1,
        '5' : 2,
        '4' : 3,
        '3' : 4,
        '2' : 5,
        '1' : 6,
        '0' : 6,
    }
    // min
    lottos.map(v => {
        if (v===0) zero++
        if (win_nums.indexOf(v) !== -1) return count++
    })
    min = rank[count]
    count = 0
    // max
    let rest = []
    win_nums.map(v => {
        if (lottos.indexOf(v) !== -1) return count++
        else rest.push(v)
    })
    rest.length >= zero ? count += zero : count += rest.length
    max = rank[count]

    return [max, min];
}

풀이 2

function solution(lottos, win_nums) {
    let rank = [6,6,5,4,3,2,1]
    let min = win_nums.filter(v => lottos.indexOf(v) !== -1).length
    let zero = lottos.filter(v => !v).length
    let rest = win_nums.length - min >= zero ? zero : win_nums.length - min
    let max = min + rest
    return [rank[max], rank[min]]

}