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iOS Swift Basics Swift Types Recap: Swift Types

Posted by Isaac Ballas
Isaac Ballas
1,105 Points

having trouble with the final exercise

when I click submit work it says my output is in the wrong format, can anyone help

types.swift 
let firstValue = 2
let secondValue = 4
let product = 2 * 4
let output = " \(firstValue) \(secondValue) \(product)  "

3 Answers

ceriannejackson
ceriannejackson
23,759 Points
ceriannejackson
ceriannejackson
23,759 Points

You're outputting the 3 variables in a string but not in the format specified which is

"The product of 2 times 4 is 8"

Matt Skelton
Matt Skelton
4,548 Points
Matt Skelton
Matt Skelton
4,548 Points

You're very nearly there! Pay particularly close attention to this statement:

The string should read: "The product of 2 times 4 is 8"

You just need to tweak what you're displaying in your output. Your current output would print as follows:

" 2 4 8 "

You want the value of output to read as a grammatically correct statement. Once you add these details around your string interpolation, you'll be done. Hope that helps!

Isaac Ballas
Isaac Ballas
1,105 Points

Hi I tried this code and it still won't work. By the way thank you for your excellent reply

Isaac Ballas
Isaac Ballas
1,105 Points
Isaac Ballas
Isaac Ballas
1,105 Points

"The product of (firstValue) times (secondValue) is (product)"

Matt Skelton
Matt Skelton
4,548 Points
Matt Skelton
Matt Skelton
4,548 Points

Almost, you just need to add an extra character before your variable names to show that you want to retrieve the value that is stored within them.

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

Without the backslashes, your output value will literally contain "The product of (firstValue) times (secondValue) is (product)". The backslashes are used to grab the value of a given variable and use that instead. This is known as string interpolation.

Hope this does the trick for you, good luck!