Mission.
작성한 답
function solution(s1, s2) { const commonElements = s1.filter(element => s2.includes(element)); return commonElements.length; } console.log(solution(["a", "b", "c"], ["com", "b", "d", "p", "c"])); // 출력: 2참고 자료
https://school.programmers.co.kr/learn/courses/30/lessons/120903