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# \[S12] Class
**Class in JS**
패턴을 생성하는 역할
객체를 나타낼 때 프로퍼티와 기능을 함께 나타낸다.
인스턴스화 가능하다.
변수명 앞에 #을 붙이면 Private 설정. 클래스 외부에서 호출 불가능함
constructor - 생성자. 객체 생성시 호출됨
**Getter / Setter**
접근자 프로퍼티
프로퍼티로 설정하지 않았지만 프로퍼티처럼 행동하는 문법적 설탕.
Getter
get 함수명(){}
값을 가져올 수 있다.
Setter
즉각적으로 값을 변경하는 프로퍼티와 달리 조건부로 변경하는등 통제할 수 있다.
SON HM ⇒ Kim MJ 변경 완료
**Static**
개별 인스턴스가 아닌 클래스 차원에서 사용할 기능 설정할때 사용
**Extends**
확장.
Player 의 모든 메서드, 프로퍼티 사용 가능
**Super**
자식 클래스에 생성자를 추가할 때 사용
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