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iOS Swift 2.0 Basics Swift Types Recap: Swift Types

Swift Types Challenge question not working

The following code works in Xcode, but won't get through the challenge gauntlet.

let firstValue = 235 let secondValue = 4356 let product = firstValue * secondValue let firstPart:String = "The product of " let secondPart:String = " times " let thirdPart:String = " is " let output = "(firstPart) (firstValue) (secondPart) (secondValue) (thirdPart) (product)"

...it says that I need to meet the question requirements, or some such. So, I am stranded!

1 Answer

Jens Hagfeldt
Jens Hagfeldt
16,548 Points

Hi Vaughn

Remember that string interpolation means adding values into a string, and that the syntax for it is to include those values within a backslash and parentheses?

So an example of the syntax for making an interpolated string with your first and last name would therefore be:

let firstName = "Vaughn"
let lastName = "Zeitzwolfe"
let yourFullName = "Your name is  \(firstName)  \(lastName)."

In the instructions for step 2 of this challenge they wrote: Using string interpolation, create a string literal that describes the operation we just performed. For example, given the following values for firstValue, secondValue and product respectively: 2, 4, 8. The string should read: "The product of 2 times 4 is 8". Assign this string to a constant named output. So my code for managing that was:

let firstValue = 2
let secondValue = 4
let product = firstValue * secondValue
let output = "The product of \(firstValue) times \(secondValue) is \(product)"

I hope my explanation made some sense for you... Happy coding! / Jens

Thanks, Jens! I tried it several ways, and I believe I even tried it that way, but after going in again [and failing] I realized I had too many spaces (or whitespace) around my strings in the output constant! Thanks again for your help!