> For the complete documentation index, see [llms.txt](https://leeboa.gitbook.io/study/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://leeboa.gitbook.io/study/_/undefined-3.md).

# 자바스크립트 기본

- [클래스 예제와 콜백함수](https://leeboa.gitbook.io/study/_/undefined-3/undefined-1.md)
- [연산자 boolean](https://leeboa.gitbook.io/study/_/undefined-3/boolean.md)
- [함수 정의, 호출 그리고 콜백](https://leeboa.gitbook.io/study/_/undefined-3/undefined.md)
- [변수타입과 object 차이점](https://leeboa.gitbook.io/study/_/undefined-3/object.md)