Welcome to the Treehouse Community

Want to collaborate on code errors? Have bugs you need feedback on? Looking for an extra set of eyes on your latest project? Get support with fellow developers, designers, and programmers of all backgrounds and skill levels here with the Treehouse Community! While you're at it, check out some resources Treehouse students have shared here.

Looking to learn something new?

Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and join thousands of Treehouse students and alumni in the community today.

Start your free trial

iOS Swift Basics Swift Types Recap: Swift Types

Why won't this Swift code run? Thank you!

I'm receiving an error that it's not evaluating properly. Any thoughts? Thanks!

// Enter your code below

let firstValue = 2
let secondValue = 4
let product = firstValue * secondValue

let output: String = "The product of " + firstValue + " times " + secondValue + " is " + product + "."

1 Answer

Jennifer Nordell
Jennifer Nordell
Treehouse Teacher

Hi there, Monroe Mann! I received your request for assistance :smiley: It looks like you're doing really well and you definitely understand concatenation, but the challenge specifically asks for interpolation. The error you're receiving is that the evaluation is taking too long, which makes me think that this could be that interpolation is faster than a ton of concatenation.

Step 2: Using string interpolation...

When I change your string to use interpolation like \(myValue), it passes without a problem.

Hope this helps! :sparkles:

edited for additional information It seems the Swift compiler is crashing on Treehouse's end. I'm given to understand that certain versions of Swift will react this way in the case that an expression is too long. I will be reporting this to Treehouse staff, but regardless, your code should be using interpolation and not concatenation :smiley: