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

what does \(number) do?

Does it do number + 1?

1 Answer

Jennifer Nordell
seal-mask
STAFF
.a{fill-rule:evenodd;}techdegree
Jennifer Nordell
Treehouse Teacher

What you're showing here in your question is an example of string interpolation. Let's take a look:

number = 5500
print("Your number is: \(number)")

This will tell Swift to put the value of the variable number in that place when it prints out. So it would print out Your number is: 5500 . If we wrote it like this:

number = 5500
print("Your number is: number")

Swift would print out Your number is: number. In the second scenario, it doesn't know that you're trying to print out the value of a variable. Hope this helps! :sparkles: