We can make the code condense when the optional is used as a parameter:
/// Long version
if let doubleValue = json["taken_at"].double {
self.createTime = Date(timeIntervalSince1970:doubleValue)
}
/// Shourt version
self.createTime = json["taken_at"].double.mapUnwrapped{
Date(timeIntervalSince1970:$0) }
> On 6 Dec 2016, at 13:18, David Sweeris <[email protected]> wrote:
>
>
>> On Dec 5, 2016, at 9:17 PM, David Sweeris via swift-evolution
>> <[email protected] <mailto:[email protected]>> wrote:
>>
>>
>>> On Dec 5, 2016, at 8:54 PM, Jay Zhao <[email protected]
>>> <mailto:[email protected]>> wrote:
>>>
>>> What about mapUnwrapped ?
>>
>> If the name is anything other than “map”, you already have to think of the
>> “special” word. At that point, why not just unwrap it manually?
>> _ = array2?.count
>> vs
>> _ = array2?.map {$0.count}
> Oops, there shouldn’t be a “?" on the last line
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