업데이트 :: 2018.03.18 01. Object02. Object Native 메소드 (property)getOwnPropertyDescriptordefinePropertygetOwnPropertyNamesgetOwnPropertySymbolsassigniskeys & values & entriespreventExtensions & isExtensibleseal & isSealedfreeze & isFrozen03. Object Native 메소드 (prototype)getPrototypeOfsetPrototypeOfcreate_defineGetter_ & _defineSetter__lookupGetter_ & _lookupSetter_01. Object자바스크립트는 native로 Object라는 ..