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Sorting arrays
The sort methods available on arrays come in two flavors:
The sorted method returns a new, sorted array:
var randomInts = [233, 6, 85, 1, 6, 24]
let sortedInt = randomInts.sorted()
print(randomInts) //unchanged
The sort method mutates the array in place:
randomInts.sort()
print(randomInts) //mutated