자바스크립트의 유연성은 매우 강력하기도 하지만, 그만큼 문제가 생길 소지도 많습니다. 어떤
코드든, 그 위치가 어디이든, 다른 객체를 쉽게 바꿀 수 있으므로 의도와 달리 위험한 코드를
만들 가능성이
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