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iOS Swift Basics (retired) Types Printing Results

Posted by David Richard
David Richard
Courses Plus Student 699 Points

PrintIn Help

I'm not totally sure what this means: "You need to interpolate the value of the 'language' constant into the string you pass to 'println'. Please help me out.

println.swift 
let language = "Swift"
PrintIn("Learning Swift ")

2 Answers

Michael Hulet
Michael Hulet
47,913 Points
Michael Hulet
Michael Hulet
47,913 Points

In Swift, you can easily paste the value of a variable into a String, without actually copy & pasting your code. This technique is called "String Interpolation". The syntax looks like this:

let language = "Swift"
printIn("Learning \(language)")
David Richard
David Richard
Courses Plus Student 699 Points

It didnt seem to work. I got this: "swift_lint.swift:8:1: error: use of unresolved identifier 'printIn' printIn("Learning (language) ") ^ "

Michael Hulet
Michael Hulet
47,913 Points
Michael Hulet
Michael Hulet
47,913 Points

You forgot the backslash in the middle of the string in the println statement. Feel free to copy & paste this verbatim

David Richard
PLUS
David Richard
Courses Plus Student 699 Points
David Richard
David Richard
Courses Plus Student 699 Points

Thank you so much.