Split Sequence/Collection Into Chunks

Asked May 09 '19 at 09:04

Active May 09 '19 at 09:04

Viewed 34 times

Paul Hudson explained how to split a Swift Array into chunks in his article. It works like this:

extension Array {
    func chunked(into size: Int) -> [[Element]] {
        return stride(from: 0, to: count, by: size).map {
            Array(self[$0 ..< Swift.min($0 + size, count)])
        }
    }
}

and can be used like this:

let numbers = Array(1...100)
let result = numbers.chunked(into: 5)

I wonder if this algorithm could be generalized to make it work for arbitrary collections/sequences, especially Strings. I thought about applying this algorithm to to the protocols Collection or Sequence...

Any ideas?

asked May 09 '19 at 09:04

blackjacx

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For collections: https://stackoverflow.com/a/33540708/1187415. For sequences: https://stackoverflow.com/a/46141693/1187415 – Martin R May 09 '19 at 09:15
Done already here https://stackoverflow.com/a/54524110/2303865 – Leo Dabus May 09 '19 at 15:29
@MartinR those would return `[[Element]]` instead of `[SubSequence]` – Leo Dabus May 09 '19 at 15:35
Yeah thank's so much! Exactly what I searched for! Didn't find those answers somehow – blackjacx May 09 '19 at 22:23

Split Sequence/Collection Into Chunks

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