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!

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

Need help understanding string interpolation on step 2

Just need a more detailed or more simple explanation for step 2.

// Enter your code below

let firstValue = 10

let secondValue = 5

let product = 10 * 5

let output = "The product 10 times 5 is 50"

1 Answer

Here is a good description of interpolation I found in the apple Swift documentation:

"String interpolation is a way to construct a new String value from a mix of constants, variables, literals, and expressions by including their values inside a string literal... Each item that you insert into the string literal is wrapped in a pair of parentheses, prefixed by a backslash..."

So if we use concatenation for the output it should look like this...

let firstValue = 10

let secondValue = 5

let product = firstValue * secondValue

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

Let me know if this doesn't make sense.