41 lines
1.1 KiB
Swift
41 lines
1.1 KiB
Swift
//
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// Copyright 2020 Signal Messenger, LLC
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// SPDX-License-Identifier: AGPL-3.0-only
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//
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import Foundation
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public extension Int {
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var abbreviatedString: String {
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let value: Double
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let suffix: String
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switch abs(self) {
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case 1_000..<1_000_000:
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value = Double(self) / 1_000
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suffix = "K"
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case 1_000_000..<1_000_000_000:
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value = Double(self) / 1_000_000
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suffix = "M"
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case 1_000_000_000...Int.max:
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value = Double(self) / 1_000_000_000
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suffix = "B"
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default:
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value = Double(self)
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suffix = ""
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}
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let numberFormatter = NumberFormatter()
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numberFormatter.maximumFractionDigits = 1
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numberFormatter.minimumFractionDigits = 0
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numberFormatter.negativeSuffix = suffix
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numberFormatter.positiveSuffix = suffix
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guard let result = numberFormatter.string(for: value) else {
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owsFailDebug("unexpectedly failed to format number")
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return "\(self)"
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}
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return result
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}
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}
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