Get nth character of a string in Swift programming language

Question

How can I get the nth character of a string? I tried bracket([]) accessor with no luck.

var string = \"Hello, world!\"

var firstChar = string[         


        

Answer 1

Swift 2.0 as of Xcode 7 GM Seed

var text = "Hello, world!"

let firstChar = text[text.startIndex.advancedBy(0)] // "H"

For the nth character, replace 0 with n-1.

Edit: Swift 3.0

text[text.index(text.startIndex, offsetBy: 0)]

n.b. there are simpler ways of grabbing certain characters in the string

e.g. let firstChar = text.characters.first