[Programmers] Lv1: 핸드폰 번호 가리기(12948)

문제

- 링크: https://school.programmers.co.kr/learn/courses/30/lessons/12948

풀이

Java

(solution 1)

ㅇ

---

JavaScript

(solution 1)

function solution(phone_number) {
    var answer = '';
    for (let i = 0; i < phone_number.length - 4; ++i) {
        answer += "*";
    }
    for (let i = phone_number.length - 4; i < phone_number.length; ++i) {
        answer += phone_number[i];
    }
    return answer;
}

 

(학습포인트)

- 문자반복: str.repeat(숫자)

- 문자열추철: str.slice(숫자)