Can we quick let String become [Character] in swift?

Question

I have a String and I want get an Array of the String's Characters.

I can already do it, like this:

var Carr = [Character]()
for c in s.characters {
    Carr.append(c)
}

As you can see, it's not beautiful or efficient.

In Java, I can use char[] sa = s.toCharArray(); to get a char[]. Is there a similarly simple way to do this in Swift?

score 2 · Accepted Answer · answered Feb 09 '17 at 08:56

2

let charArray = Array(s.characters)

Because it conforms to Sequence, it can be used in a for loop, as you showed. But also, it can be used in the initializer of Array that takes a sequence.

answered Feb 09 '17 at 08:56

Alexander

Thank you, it really did. I try a lot of function, but forget this. – Eggplant Feb 09 '17 at 10:10

score 0 · Answer 2 · answered Feb 09 '17 at 08:55

0

You are already using the right function:

let yourString = "a string"
let characters = yourString.characters
let count = characters.count

This gives you the collection of characters contained in your string

answered Feb 09 '17 at 08:55

Ocunidee

a sequence of characters, not an array. – Sulthan Feb 09 '17 at 08:59
yes , it look like an array,but not an array. You can not let characters[0] = "a" – Eggplant Feb 09 '17 at 10:13

2 Answers2