includes()1 [javascript]includes() includes() includes() 메서드는 문자열 포함 여부를 검색하여 불린(true, false)으로 반환합니다. "문자열".includes(검색값) "문자열".includes(검색값, 시작값) const str1 = "javascript reference"; const currentStr1 = str1.includes("javascript"); const currentStr2 = str1.includes("j"); const currentStr3 = str1.includes("b"); const currentStr4 = str1.includes("reference"); const currentStr5 = str1.includes("reference", 1); const currentStr6 = .. 2022. 8. 17. 이전 1 다음 728x90
