Swift Tutorials

How to get a Random Item in a Set in Swift

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How to get a Random Item in a Set in Swift ?

Answer

To obtain a random item from a set in Swift, you can use the `randomElement()` method available on the Set type.

✐ Examples

1 Get Random Item from Set

In this example,

We create a set, for example, a Set of integers named `mySet`, and populate it with some elements.
We use the `randomElement()` method provided by the Set type to fetch a random element from the set.
The `randomElement()` method returns an optional value, which may be nil if the set is empty.
We safely unwrap the optional value to access the random item.
Finally, we print the random item to the console.

Swift Program

var mySet: Set<Int> = [1, 2, 3, 4, 5]

if let randomItem = mySet.randomElement() {
    print("Random item from set: \(randomItem)")
} else {
    print("Set is empty")
}

Output

Random item from set: [random value]

Summary

In this tutorial, we learned How to get a Random Item in a Set in Swift language with well detailed examples.