Java Script 기초 강의 2 - by. 코딩앙마

2. 자료형

1) 문자열(string)

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2) 숫자열

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3) Boolean

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4) null / undefined

* null은 아무 내용이 없다는 뜻

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5) typeof 연산자

- 다른 개발자가 작성한 변수의 타입을 알아야 할 때,

- 받아온 데이터를 타입에 따라 다른 방식으로 처리해야 할 때 사용

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6) 기타

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