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Re: Swift question
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Re: Swift question

  • Subject: Re: Swift question
  • From: Frédéric Testuz <email@hidden>
  • Date: Wed, 04 Jun 2014 20:23:15 +0200
The compiler should not complain if it’s just this.

I think in this case, inside the if block you are declaring a new const variable. The hammerTitle inside the if block is not the same as hammerTitle outside. When the code exit the if block the inside hammerTitle is out of scope.

Frédéric


Le 4 juin 2014 à 20:17, Carl Leiby <email@hidden> a écrit :

1. HammerTitle can't be changed because you used let. 
2. You didn't change it in the if you defined a new constant in that scope. 

Hope that helps
Carl




On Wed, Jun 4, 2014 at 11:13 AM -0700, "David Delmonte" <email@hidden> wrote:

As there does not seem to be any appropriate place for this question, I’m guessing to post this here:

I’m starting through the enjoyable Guided Tour of Swift :(https://developer.apple.com/library/prerelease/ios/documentation/Swift/Conceptual/Swift_Programming_Language/GuidedTour.html#//apple_ref/doc/uid/TP40014097-CH2-XID_1)

and have a simple question…

        let nails = 100
        var hammers = 1
        
        let hammerTitle = " hammers"
        if hammers == 1  {
            let hammerTitle = " hammer"
        }
        let toolSummary = "I have \(nails) nails and \(hammers)" + hammerTitle

This always results in:

toolSummary: I have 100 nails and 1 hammers

Any ideas what I’m doing wrong?
(for non-english speakers, I want “1 hammer”)

Thanks


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References: 
 >Re: Swift question (From: Carl Leiby <email@hidden>)

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