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iOS Swift 2.0 Basics Swift Types String Manipulation

Posted by Bruno Melo
Bruno Melo
729 Points

String interpolation

I have to interpolate two Strings: First create a constant name and assign my name; Second declare the constant greeting using interpolation, and the result must be: "Hi there, Bruno." What I'm doing is: var name = "Bruno." var greeting = "(Hi there), (name)"

But the error above keeps showing

1 Answer

Nathan Tallack
Nathan Tallack
22,160 Points
Nathan Tallack
Nathan Tallack
22,160 Points

First of all, remember a constant is declared with let not var. Only use var if you are going to change the value later.

Next, when we want to insert a value into a string (interpolation) we use () to do it. The \ escapes the ( so that Swift knows you are going to put a value inside the brackets.

So the code would look something like this.

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

Hope this helps. :)