1. 스타일 계산 함수 const greyPartItemStyle = ( isFirstColumn: boolean, isLastColumn: boolean, width: number, height: number, ) => ({ backgroundColor: '#282727', marginLeft: isFirstColumn ? 0 : marginLeftOrRight, marginRight: isLastColumn ? 0 : marginLeftOrRight, marginVertical: 5, width, height, borderRadius: 12, padding: 5, }); 2. 커스텀 훅 사용 const useDynamicStyle = (isFirstColumn, isLastColumn, width, ..