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iOS Swift 2.0 Basics Swift Types String Manipulation

Nate Gardner
Nate Gardner
320 Points

I am stuck on the concatenating for the finalGreeting.

Below is my code attempted in two ways.

Approach 1. let name = "McKinley." let greeting = "Hi there, (name)"

let finalGreeting = "(greeting) How are you?"

Approach 2. let name = "McKinley." let greeting = "Hi there, (name)"

let finalGreeting = "greeting" + " How are you?"

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

let finalGreeting = "\(greeting) How are you?"

2 Answers

Jennifer Nordell
seal-mask
STAFF
.a{fill-rule:evenodd;}techdegree
Jennifer Nordell
Treehouse Teacher

Both of your previous approaches were very close! Remember concatenation is simply using a plus sign. The use of the backslashes and parentheses is interpolation. The line you need is here:

let finalGreeting =  greeting + "How are you?"  

Let's take another look at a concatenation example.

let wordOne = "Treehouse"
let wordTwo = "rocks!"
let finalString = wordOne + wordTwo
let finalSpace = wordOne + " " + wordTwo

Here we're simply taking two strings and pushing them together. The result will be that finalString will contain "Treehouserocks!" That's because there's no space in those strings. The variable finalSpace will contain "Treehouse rocks!" because I concatenated a space in the middle. Hope this clarifies things!

// Enter your code below
let name = "Gavin"
let greeting = "Hi there, \(name)."
let finalGreeting = greeting + " How are you?"