[Programmers] Lv 1. 문자열 나누기

https://school.programmers.co.kr/learn/courses/30/lessons/140108

프로그래머스

 

function solution(s) {
    var first;
    var countArr = new Array(3).fill(0);

    [...s].forEach((element, index) => {
        first ||= element;

        if (element === first) ++countArr[0];
        else ++countArr[1];

        if (countArr[0] === countArr[1]) {
            ++countArr[2];
            first = undefined;
        }
    });

    return countArr[0] !== countArr[1] ? ++countArr[2] : countArr[2];
}

GitHub : https://github.com/developeSHG/Algorithm-Baekjoon_Programmers/blob/main/%ED%94%84%EB%A1%9C%EA%B7%B8%EB%9E%98%EB%A8%B8%EC%8A%A4/unrated/140108.%E2%80%85%EB%AC%B8%EC%9E%90%EC%97%B4%E2%80%85%EB%82%98%EB%88%84%EA%B8%B0/%EB%AC%B8%EC%9E%90%EC%97%B4%E2%80%85%EB%82%98%EB%88%84%EA%B8%B0.js

GitHub - developeSHG/Algorithm-Baekjoon_Programmers: 백준 and 프로그래머스 소스코드