AI-generated Key Takeaways
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DayOfWeekis an enumeration representing the days of the week. -
It conforms to
Equatable,Hashable, andRawRepresentableprotocols, allowing for comparison, hashing, and raw value representation. -
Each day of the week (Monday through Sunday) is represented by a distinct case within the enumeration.
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The raw value of each case is a
UIntand aligns withNSDateComponents.weekdayindex (refer to the provided Apple documentation link for details). -
An initializer
init(rawValue:)is available to create an instance ofDayOfWeekfrom a raw value.
DayOfWeek
enum DayOfWeekextension DayOfWeek : Copyable, Equatable, Escapable, Hashable, RawRepresentableThe fields represent individual days of the week.
Matches NSDateComponents.weekday index. Refer to https://developer.apple.com/documentation/foundation/nsdatecomponents/1410442-weekday
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The raw type that can be used to represent all values of the conforming type.
Every distinct value of the conforming type has a corresponding unique value of the
RawValuetype, but there may be values of theRawValuetype that don’t have a corresponding value of the conforming type.Declaration
Swift
typealias RawValue = UInt -
Declaration
Swift
case friday -
Creates a new instance with the specified raw value.
If there is no value of the type that corresponds with the specified raw value, this initializer returns
nil. For example:enum PaperSize: String { case A4, A5, Letter, Legal } print(PaperSize(rawValue: "Legal")) // Prints "Optional(PaperSize.Legal)" print(PaperSize(rawValue: "Tabloid")) // Prints "nil"Declaration
Swift
init?(rawValue: UInt)Parameters
rawValueThe raw value to use for the new instance.
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Declaration
Swift
case monday -
The corresponding value of the raw type.
A new instance initialized with
rawValuewill be equivalent to this instance. For example:enum PaperSize: String { case A4, A5, Letter, Legal } let selectedSize = PaperSize.Letter print(selectedSize.rawValue) // Prints "Letter" print(selectedSize == PaperSize(rawValue: selectedSize.rawValue)!) // Prints "true"Declaration
Swift
var rawValue: UInt { get } -
Declaration
Swift
case saturday -
Declaration
Swift
case sunday -
Declaration
Swift
case thursday -
Declaration
Swift
case tuesday -
Declaration
Swift
case wednesday