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Re: Possible to defer initialization of let variable?
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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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References: 
 >Possible to defer initialization of let variable? (From: Rick Mann <email@hidden>)
 >Re: Possible to defer initialization of let variable? (From: Quincey Morris <email@hidden>)

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