How to randomize the order of an array: shuffle() and shuffled()

Swift version: 5.1

Swift has built-in methods for shuffling arrays: shuffle() and shuffled(), depending on whether you want the shuffling to happen in place or not.

For example:

var albums = ["Red", "1989", "Reputation"]

// shuffle in place
albums.shuffle()

// get a shuffled array back
let shuffled = albums.shuffled()

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