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iOS Swift 2.0 Basics Swift Types String Manipulation

interpolated strings

not working

// Enter your code below
let name = "Matthew."
let greeting = "Hi there"
let interpolated address = greeting+"," +name

2 Answers

Tobias Helmrich
Tobias Helmrich
31,602 Points

Hey Amaury,

the problem in your code is that you're trying to interpolate the string itself here:

\(Hi there)

"Hi there" is no variable (and wouldn't be a valid name for one), so you don't have to interpolate it and you can just write the string. Also note that even though it works like this it would be better and cleaner code when you write the period in the greeting instead of in your name constant like so:

let name = "Christian"
let greeting = "Hi there, \(name)."

I hope you understand what was wrong in your code now and that I could help you, good luck! :)

Tobias Helmrich
Tobias Helmrich
31,602 Points

Hey Matthew,

there are a few things wrong in your code. You're using string concatenation instead of interpolation, to interpolate a variable or constant in a string you have to write the variable/constant inside of \() . Also note that you can't write spaces between words in a constant/variable name like you did in "interpolated address".

So if you're interpolating your name in the greeting constant you do it like that:

// Enter your code below
let name = "Matthew"
let greeting = "Hi there, \(name)."

I hope that helps! :)

Christian A. Castro
Christian A. Castro
30,501 Points

I was writing:

let name = "Christian."
let greeting = "\(Hi there), \(name)"

which it was wrong.

Thank you, Tobias Helmrich !!! Amaury.