> For the complete documentation index, see [llms.txt](https://krjaeh0.gitbook.io/j-log/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://krjaeh0.gitbook.io/j-log/programming/languages/swift-and-ios/swiftmainfeatures.md).

# SwiftMainFeatures

* [**옵셔널(Optionals)**](broken://pages/3033f8ae69142c7e5e4526deffaf358ce742b83e): 변수가 값이 없을 수도 있는 경우(즉, nil 가능성이 있는 경우)를 안전하게 처리할 수 있는 방법을 제공해.
* [**클로저(Closures)**](broken://pages/3033f8ae69142c7e5e4526deffaf358ce742b83e): 이름 없는 함수를 정의할 수 있는 기능으로, 간결하게 콜백(callback)을 작성할 수 있어.
* [**프로토콜(Protocol)**](broken://pages/3a8c9d85b0fd8374c5c4e5da9d23b69c7949397c): 특정 작업이나 기능을 수행하는 메소드, 프로퍼티, 기타 요구사항의 청사진을 정의할 수 있어. 클래스, 구조체, 열거형에서 프로토콜을 채택해서 이 요구사항들을 실제로 구현할 수 있지.
* [**제네릭 프로그래밍**](broken://pages/3cf9debe464919c7f521e25486d0246379463ee4)**(Generics)**: 타입에 유연하게 대응할 수 있도록 해주는 프로그래밍 기법이야. 코드의 중복을 줄이면서도 타입의 안전성을 보장해줘.


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