swift 2.0 interpolated string

Hello, Elias! Your code is correct. You don't necessarily need to encapsulate your greeting String in parentheses, but it doesn't harm your code to do so. However, the coding challenge doesn't accept an answer where greeting is inside parentheses. Other than that, all you're missing is the period at the end of greeting:

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

Hope this helps!

EDIT: I just played around with greeting in a playground, and came to the realization that encapsulating greeting in parentheses does make a difference. By putting greeting in parentheses, you're creating a constant of type (String) (a tuple with a single String value inside of it), rather than just a String. This makes a difference because a tuple is very different from a String. A tuple is an object that acts like a container for one or more objects of any type - for example, if you were to write the following code:

let name = "Me"
let greeting = "Hello there, \(name)!"
let nameAndGreeting = (name, greeting)

the type for nameAndGreeting would be (String, String).

To access and manipulate the String inside the tuple, you have to access the index of that String (for example, nameAndGreeting.0 would return name, and nameAndGreeting.1 would return greeting). In the case of your code, if you want to do anything with the String inside of greeting, you'd have to access greeting.0 rather than doing anything directly to greeting.

If this doesn't make sense, don't worry - Pasan covers tuples very well later on. Just know that putting your greeting String in parentheses makes an object of type (String), which behaves very differently from an object of type String.