[js] ๋ฐฐ์ด์๋ฅด๊ธฐ https://www.appletong.com/entry/%EC%9E%90%EB%B0%94%EC%8A%A4%ED%81%AC%EB%A6%BD%ED%8A%B8-%EB%B0%B0%EC%97%B4-%EC%9E%90%EB%A5%B4%EA%B8%B0-slice-splice Front/JS & jQuery 2023.10.07