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iOS Swift 2.0 Basics Swift Types Recap: Swift Types

Posted by Vaughn Zeitzwolfe
Vaughn Zeitzwolfe
1,064 Points

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
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

Vaughn Zeitzwolfe
Vaughn Zeitzwolfe
1,064 Points

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!