How do I shuffle an array in Swift?

Question

How do I randomize or shuffle the elements within an array in Swift? For example, if my array consists of 52 playing cards, I want to shuffle the array in o

Answer 1

Here's some code that runs in playground. You won't need to import Darwin in an actual Xcode project.

import darwin

var a = [1,2,3,4,5,6,7]

func shuffle(item1: ItemType, item2: ItemType) -> Bool {
    return drand48() > 0.5
}

sort(a, shuffle)

println(a)