This content originally appeared on flaviocopes.com and was authored by flaviocopes.com
This tutorial belongs to the Swift series
Suppose you have an array in Swift, like this:
var items = 1...3and you want to shuffle it, so that you get its items in random order.
There are 2 ways to do that in Swift.
One way is mutating the original array, and it’s using the shuffle() method that shuffles the items in the array:
items.shuffle()Note that I used var because an array is a struct, and if I declare it as let then it’s immutable, and you will get an error.
Another way is not mutating the original array, but it’s returning a new array, and it’s using the shuffled() method:
let items = 1...3
let shuffledItems = items.shuffled()Note that here I am safe to use let to declare my variables because shuffled() does not mutate the original array.
This content originally appeared on flaviocopes.com and was authored by flaviocopes.com
flaviocopes.com | Sciencx (2021-06-14T05:00:00+00:00) How to shuffle an array in Swift. Retrieved from https://www.scien.cx/2021/06/14/how-to-shuffle-an-array-in-swift/
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