[swift-users] Cleaner way than if let initialization?

[Saagar Jha]

Oh, wait, I can’t read. Ignore that; then there’s no easy way to do it.

Saagar Jha



> On Aug 4, 2016, at 12:42, Saagar Jha <saagar at saagarjha.com> wrote:
> 
> Ahh…then optional chaining is the way to go: `let dobString = serverDateFormatter?.stringFromDate(dob) ?? ""`
> 
> Saagar Jha
> 
> 
> 
>> On Aug 4, 2016, at 12:41, Daniel Tartaglia <danielt1263 at gmail.com <mailto:danielt1263 at gmail.com>> wrote:
>> 
>> That’s not possible. stringFromDate requires an NSDate, but dob is an optional<NSDate>
>> 
>>> On Aug 4, 2016, at 2:59 PM, Saagar Jha <saagar at saagarjha.com <mailto:saagar at saagarjha.com>> wrote:
>>> 
>>> As such, there shouldn’t be a need for an if; `let dobString = serverDateFormatter.stringFromDate(dob)` should be sufficient.
>>> 
>>> Saagar Jha
>>> 
>>> 
>>> 
>>>> On Aug 4, 2016, at 11:55, Zhao Xin via swift-users <swift-users at swift.org <mailto:swift-users at swift.org>> wrote:
>>>> 
>>>> It can't be done by ?? as stringFromDate(Date) returns String instead of String?
>>>> 
>>>> Zhaoxin
>>>> 
>>>> 
>>>> On Fri, Aug 5, 2016 at 1:42 AM, Jeff Kelley via swift-users <swift-users at swift.org <mailto:swift-users at swift.org>> wrote:
>>>> That’s where I would use the ?? operator:
>>>> 
>>>> let dobString = serverDateFormatter.stringFromDate(dob) ?? ""
>>>> 
>>>> 
>>>> Jeff Kelley
>>>> 
>>>> SlaunchaMan at gmail.com <mailto:SlaunchaMan at gmail.com> | @SlaunchaMan <https://twitter.com/SlaunchaMan> | jeffkelley.org <http://jeffkelley.org/>
>>>>> On Aug 4, 2016, at 1:32 PM, Daniel Tartaglia via swift-users <swift-users at swift.org <mailto:swift-users at swift.org>> wrote:
>>>>> 
>>>>> Currently I do stuff like this:
>>>>> 
>>>>> let dobString: String
>>>>> if let dob = dob {
>>>>> 	dobString = serverDateFormatter.stringFromDate(dob)
>>>>> }
>>>>> else {
>>>>> 	dobString = ""
>>>>> }
>>>>> 
>>>>> Is there a better, more idiomatic, way to do this sort of thing?
>>>>> 
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>>>> 
>>>> 
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>>>> 
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>> 
> 

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