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iOS Swift 2.0 Basics Swift Types String Manipulation

Fergus Clare
Fergus Clare
12,120 Points
Posted by Fergus Clare
Fergus Clare
12,120 Points

Correct concatenation results in error

This code challenge includes the following request:

"Declare a constant named finalGreeting, and concatenate the value of greeting with the string literal " How are you?".

My code is as follows: let name = "Fergus" let greeting = "Hi there, (name)." let finalGreeting = "(greeting) How are you?"

Response from test after clicking "Check Work" is "Bummer! Make sure you are using concatenation..."

When I enter the same code in the Xcode IDE, I get the following value returned: "Hi there, Fergus. How are you?"

What am I doing wrong? This seems like a bug.

strings.swift 
// Enter your code below
let name = "Fergus"
let greeting = "Hi there, \(name)."
let finalGreeting = "\(greeting) How are you?"

3 Answers

Tobias Helmrich
Tobias Helmrich
31,602 Points
Tobias Helmrich
Tobias Helmrich
31,602 Points

Hey Fergus,

your code is actually perfectly fine but the challenge wants you to concatenate the greeting constant with the string " How are you?" but you're using string interpolation instead. To concatenate the constant with the string you have to separate them with a + like so:

// Enter your code below
let name = "Fergus"
let greeting = "Hi there, \(name)."
let finalGreeting = greeting + " How are you?"

I hope that helps! :)

Mikkel Rasmussen
Mikkel Rasmussen
31,772 Points
Mikkel Rasmussen
Mikkel Rasmussen
31,772 Points 
// Enter your code below
let name = "Fergus"
let greeting = "Hi there, \(name)."
let finalGreeting =  greeting  + "How are you?"
Fergus Clare
Fergus Clare
12,120 Points
Fergus Clare
Fergus Clare
12,120 Points

Thank you Tobias. Your code solution worked and resolved my problem. I suggest to Treehouse that they more explicitly indicate the difference between the concatenation request vs. interpolation as the latter is what is being covered in this section of the coursework. Best.