const data = 'new york;10.22;2000'; const transformData = data.split(';'); transformData[1] = +transformData[1] console.log(transformData); //(3) ['new york', 10.22, '2000'] split() - split(); (괄호)안에 구분자를 통해 문자열을 구분함. - transformData[1] = +transformData[1] -> 숫자로 변환 const nameFragments = ['max', 'anna']; const aaaa = ['123', 'dd'] const name = nameFragments.join('/ '); console.log(name); //max/ ..