28 lines
672 B
Swift
28 lines
672 B
Swift
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//
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// https://mczachurski.dev
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// Copyright © 2023 Marcin Czachurski and the repository contributors.
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// Licensed under the MIT License.
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//
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import Foundation
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extension String {
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func calculateExifNumber() -> String? {
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guard self.contains("/") else {
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return self
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}
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let parts = self.split(separator: "/")
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guard parts.count == 2 else {
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return nil
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}
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if let first = Int(parts[0]), let second = Int(parts[1]) {
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let calculated = Double(first) / Double(second)
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return String(calculated.rounded(toPlaces: 2))
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}
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return nil
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}
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}
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