How do I shuffle an array of Images without .shuffle as simply as possible- nothing complicated

Question

I was working on something and wondering if I could shuffle an array of images without using .shuffle in Swift.

Here's my array:

var deck: [UIImage] = [UIImage(named: "2c.png")!, UIImage(named: "2h.png")!, UIImage(named: "2d.png")!, UIImage(named: "2s.png")!, UIImage(named: "3c.png")! ]

Possible duplicate of [How do I shuffle an array in Swift?](https://stackoverflow.com/q/24026510/2108547) — Daniel Storm, Nov 21 '19 at 02:03

score 0 · Answer 1 · answered Nov 21 '19 at 01:47

0

Yes, you can achieve your own custom shuffle method for Collection type.

For example:

extension Array {
    var yourShuffled: [Element] {
        return map{ (arc4random(), $0) }
               .sorted{ $0.0 < $1.0 }
               .map{ $0.1 }
    }
}

copied from leetcode

answered Nov 21 '19 at 01:47

dengApro

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Don't copy from leet code ;). That algorithm is O(nlog(n)) when it should be O(n). – Josh Homann Nov 21 '19 at 01:59
Thx, `sorted ` is `O(nlog(n))` – dengApro Nov 21 '19 at 02:30
is there no simpler way to do it? – newCoder Nov 26 '19 at 03:13
https://stackoverflow.com/questions/24026510/how-do-i-shuffle-an-array-in-swift#answer-29541686 – dengApro Nov 26 '19 at 06:20

How do I shuffle an array of Images without .shuffle as simply as possible- nothing complicated

1 Answers1