On Sep 25, 2016, at 4:19 PM, Trans via swift-evolution <[email protected]> wrote: Not true; it's an attempt to access the `numberOfRooms` property on `Optional<Residence>`. That property doesn't exist, but it could be added using an extension. (And `Optional` does have several members—most notably `map`, `flatMap`, and `unsafelyUnwrapped`.) -- Brent Royal-Gordon Architechies |
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