wuggy/Dactyloidae
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Dactyloidae iOS initial commit

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wuggy 2026-06-26 21:04:09 -07:00
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mobile/ios/Shared/Extensions/OptionalExtensions.swift Normal file
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/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
import Foundation
/* A smarter ?? operator which allows the left hand/right hand arguments to not be
* the same type. This is useful where we want to print the string representation
* of an optional value that is not a string but want to return a string value when
* a value is absent.
*
* For more informatin, check out Oleb's post:
* https://oleb.net/blog/2016/12/optionals-string-interpolation/ */
infix operator ???: NilCoalescingPrecedence
public func ???<T>(optional: T?, defaultValue: @autoclosure () -> String) -> String {
return optional.map { String(describing: $0) } ?? defaultValue()
}