shuffled() methods are two in-built methods of Swift. Both these methods can shuffle a collection. These methods can help us to reorder the elements of a collection.
Though both methods use to shuffle a collection type, there is a difference between them.
shuffle() method shuffles the collection in place. That means it modifies the collection.
On the other hand, the
shuffled() method doesn’t modify the existing collection, it returns a new collection in which the element of the existing collection is shuffled.
Below is the given syntax for the
The syntax for the Swift
shuffled() method is given below:
Below is given an example of using the
shuffle() method to shuffle the elements of an array:
var myNumbers = [0, 1, 2, 3, 4, 5, 6, 7, 8, 9] myNumbers.shuffle() print(myNumbers)
[2, 6, 0, 1, 5, 3, 4, 8, 7, 9]
In the above, you can see that we have created a variable to store our array instead of using a constant. If we use constant, then using the
shuffle() method will return an error because the
shuffle() method will not be able to modify the array.
In the output, we can see that the elements of our array reorder.
In the example below, you can see the usage of the Swift
let myNumbers = [0, 1, 2, 3, 4, 5, 6, 7, 8, 9] let shuffledNumbers = myNumbers.shuffled() print(shuffledNumbers)
[2, 1, 0, 4, 8, 3, 5, 7, 9, 6]
In the above code, we have used the
shuffle() method that creates a new array with all the elements of the existing array but the elements reordered.