The .reverse () does not work on my array?

Asked Apr 06 '17 at 12:23

Active Apr 06 '17 at 12:23

Viewed 47 times

I am learning about the arrays right now in Swift. While trying to reverse an array

var array = [1, 2, 3]
var rev = array.reversed()
print (rev)

I get this output

ReversedRandomAccessCollection<Array<int>>(_base: [1, 2, 3])

No idea why it does pop up instead of a reversed array. I am working on linux (Ubuntu)

Please help me and tell what is wrong. Thanks.

asked Apr 06 '17 at 12:23

Bodeue

`let rev = Array(array.reversed())` – Leo Dabus Apr 06 '17 at 12:26
You can also say `let rev: Array = array.reversed()`, as `reversed()` has an overload for returning an `Array` instead a reversed view. – Hamish Apr 06 '17 at 12:28
You need to use reverse and not reversed: var rev=array.reverse() – Marie Dm Apr 06 '17 at 13:21
@MarieDm Wrong. `reversed` returns a copy of the reversed array, but `reverse` reverses the array itself (mutates). OP does not want to mutate the source array. – Eric Aya Apr 06 '17 at 15:03
@Hamish Nice trick – Leo Dabus Apr 06 '17 at 16:25

0 Answers0