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iOS Swift 2.0 Basics Swift Types String Interpolation

Posted by Ciaran Wood
Ciaran Wood
Courses Plus Student 6,787 Points

String interpolation

When i do the activity after the string interpolation explanation I get it wrong in your box, but it works fine in xcode, what am I doing wrong? Heres the code

let name = "Caitríona"
let finalGreeting = "\("Hi there"), \(name). \("How are you?")"

3 Answers

Greg Kaleka
Greg Kaleka
39,021 Points
Greg Kaleka
Greg Kaleka
39,021 Points

Hi Ciarian,

When doing string interpolation, you only need to interpolate things that aren't strings already, like constants, calculations, etc. You just need to remove some of your interpolation syntax:

let name = "Caitríona"
let finalGreeting = "Hi there, \(name). How are you?"

While the code you'd written does actually output the right string, this is the correct way to do it, since there's no need to string interpolate a string :smile:.

Ciaran Wood
PLUS
Ciaran Wood
Courses Plus Student 6,787 Points
Ciaran Wood
Ciaran Wood
Courses Plus Student 6,787 Points

thanks, very helpful!

Anthia Tillbury
Anthia Tillbury
3,388 Points
Anthia Tillbury
Anthia Tillbury
3,388 Points

That's what I was doing as well.

The demo video didn't show that natural language could be used, it gave the impression that everything had to be entered as string interpolated (encased in brackets with a back slash).