18 lines
540 B
Swift
18 lines
540 B
Swift
import Foundation
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private let numberFormatter: NumberFormatter = {
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let formatter = NumberFormatter()
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formatter.numberStyle = .decimal
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formatter.maximumFractionDigits = 2
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return formatter
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}()
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public extension String.StringInterpolation {
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mutating func appendInterpolation(double: Double, fractionDigits: Int = 2) {
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let formatter = NumberFormatter()
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formatter.numberStyle = .decimal
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formatter.maximumFractionDigits = fractionDigits
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appendInterpolation(numberFormatter.string(from: NSNumber(value: double))!)
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}
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}
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