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1분 퀴즈
1. 다음 코드를 실행한 후 마지막에 변수 studentObject에 할당된 객체의 키를 배열로 나열한 값을 고르세요.
const studentObj = {
name:"John",
age:20,
};
studentObj.gender = "female";
delete studentObj.age;
① ['name', 'age', 'gender']
② ['age', 'gender']
③ ['name', 'gender']
④ ['name', 'age']
⑤ ['age']