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import Foundation | |
extension String.StringInterpolation { | |
fileprivate static let myMeasurementFormatter: MeasurementFormatter = { | |
let this = MeasurementFormatter() | |
this.unitOptions = [.naturalScale] | |
this.numberFormatter.maximumFractionDigits = 1 | |
return this | |
}() | |
mutating func appendInterpolation<UnitType>(_ measurement: Measurement<UnitType>) where UnitType: Unit { | |
appendLiteral(Self.myMeasurementFormatter.string(from: measurement)) | |
} | |
} | |
let distance = Measurement(value: 123456.78, unit: UnitLength.meters) | |
let temperature = Measurement(value: 26.78, unit: UnitTemperature.celsius) | |
let area = Measurement(value: 1234567890.12, unit: UnitArea.squareMeters) | |
print("Locale: \(Locale.autoupdatingCurrent)") | |
print("Distance: \(distance)") | |
print("Temperature: \(temperature)") | |
print("Area: \(area)") | |
// Sample Output: | |
// Locale: en_US (autoupdatingCurrent) | |
// Distance: 76.7 mi | |
// Temperature: 80.2°F | |
// Area: 1,234.6 km² |
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