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extension
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[Swift] 21. Extension - 익스텐션Programming Language/Swift 2022. 6. 19. 09:11
Extensions — The Swift Programming Language (Swift 5.7) Extensions Extensions add new functionality to an existing class, structure, enumeration, or protocol type. This includes the ability to extend types for which you don’t have access to the original source code (known as retroactive modeling). Extensions docs.swift.org Extension은 클래스, 구조체, 열거형, 프로토콜에 새로운 기능을 추가한다. 원래 소스 코드에 접근할 수 없을 때 타입을 확장..