How to code the println using Interpolation Language = "LearningSwift"

Try this. let language = "Swift" println("language: \n (language) Learning") \n ---> new Line (language) --> let substitution

Hope that helps Greets Thorsten

Hi Jeffrey,

To further clarify Thorsten's answer, let's address what you've done.

let language = "Swift"
println("language: Swift\n Learning")

You refer to these two lines as functions. Whilst println() is a function (we know this because of its parentheses), let language = "Swift" is not. It's what is called a variable declaration. In other words, you're declaring what the variable is called (language) and then what value it holds ("Swift").

With that out of the way, let's address how to interpolate this variable in to a String.

So our println() function holds a String. To interpolate a variable in to a String, we do this:

println("This is an \(variableName) String.")

All in all, to answer your question in context, we would simply write:

let language = "Swift"
println("language: \(language) Learning") // This will print to the console;
                                          // language: Swift Learning

I hope this helps your understanding!

println("Learning (language)")