Created
February 25, 2021 22:51
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??? operator in swift.
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| infix operator ??? | |
| func ???<T> (_ value: @autoclosure () -> T?, _ error: @autoclosure () -> Error) throws -> T { | |
| guard let value = value() else { | |
| throw error() | |
| } | |
| return value | |
| } | |
| do { | |
| let value = Optional(20) ??? NSError() | |
| print(value) | |
| } catch { | |
| print(error) | |
| } | |
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