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https://docs.swift.org/swift-book/LanguageGuide/Inheritance.html Inheritance — The Swift Programming Language (Swift 5.5) Inheritance A class can inherit methods, properties, and other characteristics from another class. When one class inherits from another, the inheriting class is known as a subclass, and the class it inherits from is known as its superclass. Inheritance is docs.swift.org 오늘은 I..

https://docs.swift.org/swift-book/LanguageGuide/Enumerations.html Enumerations — The Swift Programming Language (Swift 5.5) Enumerations An enumeration defines a common type for a group of related values and enables you to work with those values in a type-safe way within your code. If you are familiar with C, you will know that C enumerations assign related names to a set of in docs.swift.org 오늘..

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https://docs.swift.org/swift-book/LanguageGuide/AutomaticReferenceCounting.html Automatic Reference Counting — The Swift Programming Language (Swift 5.5) Automatic Reference Counting Swift uses Automatic Reference Counting (ARC) to track and manage your app’s memory usage. In most cases, this means that memory management “just works” in Swift, and you don’t need to think about memory management ..