{"number": 0, "chapter": "시작하기 전에"},
{"number": 1, "chapter": "이름"},
{"number": 2, "chapter": "숫자"},
{"number": 3, "chapter": "큰 정수"},
{"number": 4, "chapter": "큰 부동소수점"},
{"number": 5, "chapter": "큰 유리수"},
{"number": 6, "chapter": "불(boolean 타입"},
{"number": 7, "chapter": "배열"},
{"number": 8, "chapter": "객체"},
{"number": 9, "chapter": "문자열"},
{"number": 10, "chapter": "빈 값"},
{"number": 11, "chapter": "문장"},
{"number": 12, "chapter": "함수"},
{"number": 13, "chapter": "제너레이터"},
{"number": 14, "chapter": "예외"},
{"number": 15, "chapter": "프로그램"},
{"number": 16, "chapter": "this"},
{"number": 17, "chapter": "클래스 없는 자바스크립트"},
{"number": 18, "chapter": "꼬리 호출"},
{"number": 19, "chapter": "순수함"},
{"number": 20, "chapter": "비동기 프로그래밍"},
{"number": 21, "chapter": "Date"},
{"number": 22, "chapter": "JSON"},
{"number": 23, "chapter": "테스팅"},
{"number": 24, "chapter": "최적화"},
{"number": 25, "chapter": "트랜스파일링"},
{"number": 26, "chapter": "토
