Javascript Date() formatting

// 한글을 사용하는 요일을 위해서는 추가적으로 배열을 만들어서 사용합니다. let day = ['일', '월', '화', '수', '목', '금', '토']; let today = new Date(); //1번 포맷 let dateFormat1 = today.getFullYear() + '년 ' + (today.getMonth()+1) + '월 ' + today.getDate() + '일 ' + day[today.getDay()] + '요일 ' + today.getHours() + '시 ' + today.getMinutes() + '분 ' + today.getSeconds() + '초' //2번 포맷 let dateFormat2 = today.getFullYear() + '-' + ( (today.getMonth()+1) < 9 ? "0" + (today.getMonth()+1) : (today.getMonth()+1) )+ '-' + ( (today.getDate()) < 9 ? "0" + (today.getDate()) : (today.getDate()) ); document.getElementById("datetime").innerText = (today.getMonth()+1) + '월 ' + today.getDate() + '일 ' + day[today.getDay()] + '요일 ' + "\n" + (today.getHours() < 11 ? "오전 " : "오후 ") + (today.getHours() < 11 ? today.getHours() : today.getHours() - 12) + '시 ' + today.getMinutes() + '분 '