Re: Possible to defer initialization of let variable?
Re: Possible to defer initialization of let variable?
- Subject: Re: Possible to defer initialization of let variable?
- From: Rick Mann <email@hidden>
- Date: Tue, 07 Jul 2015 01:21:12 -0700
> On Jul 7, 2015, at 01:16 , Quincey Morris <email@hidden> wrote:
>
> On Jul 7, 2015, at 01:08 , Rick Mann <email@hidden> wrote:
>>
>> But I can't get Swift 2 to let me.
>
> You’ve left a path through the code that doesn’t set ‘someString’. So, you’ll need to add:
>
>> else
>> {
>> someString = nil
>> }
>
> to the ‘if’.
Well, I wanted to do this:
// Get the hero thumbnail…
let thumbURL: String?
for imgD in images
{
if let isHero = imgD["is_hero"] as? Bool where isHero,
let t = imgD["thumbnail_signed_src"] as? String
{
thumbURL = t
break
}
}
print("Thumb: \(thumbURL)")
But it complains that it's used before being initialized. I guess I want it to initialize it to nil, then let me assign it once, then keep it constant.
--
Rick Mann
email@hidden
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