[swift-evolution] Add an ifPresent function to Optional

[Erica Sadun]

> On Mar 20, 2016, at 12:20 PM, Krzysztof Siejkowski <krzysztof at siejkowski.net> wrote:
> However, I’m not sure about this one:
> 
>> public func f2<U>(@noescape f: (Wrapped) throws -> U!) rethrows -> U!
> 
> I haven’t used implicitly unwrapped optionals at all, I just never found a good case for them. Why do you think this variant might be useful?
> 
> 

Because flatMap. No other reason. I'm not advocating this.

-- E

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