- 문자열을 대문자로 변환하는 방법:
str.toUpperCase()⬆️ - 문자열을 소문자로 변환하는 방법:
str.toLowerCase()⬇️ - JavaScript에서 문자열 대소문자 변환은 간단한 내장 함수로 가능 🔤
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