Instance Method
appendInterpolation(dayPeriod:)
iOS 15.0+
iPadOS 15.0+
Mac Catalyst 15.0+
macOS 12.0+
tvOS 15.0+
watchOS 8.0+
Appends a day period symbol to the format string.
mutating func appendInterpolation(dayPeriod: Date.FormatStyle.Symbol.DayPeriod)