Instance Method
appendInterpolation(yearForWeekOfYear:)
iOS 15.0+
iPadOS 15.0+
Mac Catalyst 15.0+
macOS 12.0+
tvOS 15.0+
watchOS 8.0+
Appends a year-for-week-of-year symbol to the format string.
mutating func appendInterpolation(yearForWeekOfYear: Date.FormatStyle.Symbol.YearForWeekOfYear)