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iOS Swift 2.0 Basics Swift Types String Manipulation

Posted by Billy Potts
Billy Potts
Courses Plus Student 2,344 Points

I'm trying to declare to constants one with name and one which is interpolation and i don't know what I'm doing wrong

i tried let name = "Billy" let greeting = "Hi there," let interpolatedGreeting = "(Hi there,) (name)."

nothing is working

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

3 Answers

Tobias Helmrich
Tobias Helmrich
31,603 Points
Tobias Helmrich
Tobias Helmrich
31,603 Points

Hey Billy,

you almost got it right! Just note that you only have to interpolate variables/constants but you're trying to interpolate the String itself ("Hi there, ") which you don't have to.

This should work:

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

I hope that helps, good luck! :)

David Bath
David Bath
25,940 Points
David Bath
David Bath
25,940 Points

You only need to interpolate name. 

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

See what's going on? The greeting is a string, but by wrapping the constant name in ( ) Swift uses the value of that constant, even though it's between the quotation marks.

Billy Potts
PLUS
Billy Potts
Courses Plus Student 2,344 Points
Billy Potts
Billy Potts
Courses Plus Student 2,344 Points

Thanks for the help Guys Got it