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 Swift Basics Swift Types String Manipulation

it's asking me to concatenate a constant with a string literal... but it won't take it.

this is what i have... i don't understand why it won't take it...

let name = "Chris" let greeting = "Hi there, (name)" let finalGreeting = "(greeting). How are you?"

strings.swift
let name = "Chris"
let greeting = "Hi there, \(name)"
let finalGreeting = "\(greeting). How are you?"

1 Answer

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

Hi there! You're doing great, but the answer to your question is actually in your question. The challenge is asking you to concatenate... not interpolate. You've learned this already but let me show you an example as a refresher:

// concatenation
let hi = "Hi"
let hiThere = hi + " there!"

// interpolation
let hi = "Hi"
let hiTher = "\(hi) there!"

I feel like you can get it with this example, but let me know if you're still stuck!

:bulb: concatenation uses a + to add two strings together. Interpolation takes a backslash and parentheses and inserts the value of the variable at that spot in the string.

Hope this helps! :sparkles: