How To Map An Array [Swift]

Question

I have an array named bonusCardsTest of type [BonusCard] that is conformed to Identifiable that has an id and an url property of type String.

var bonusCardsTest: [BonusCard] = []

struct BonusCard: Identifiable {
    var id = UUID().uuidString
    var url: String
}

I also have an array named getBonusURLsArray of type [String] that contains urls.

What I want is to assign each element of getBonusURLsArray to the url property of bonusCardsTest. For example, if getBonusURLsArray has two elements - "https://test1.com", "https://test2.com", I want the BonusCard array to look like this:

var bonusCardsTest: [BonusCard] = [
BonusCard(url: "https:test1.com"),
BonusCard(url: "https:test2.com"),
]

How do I do that?

map() would be the higher level method, else use a basic for loop. — Larme
– Larme, Commented Jul 16, 2022 at 19:35
Your title asks about "two arrays", but your question only asks about one. Is that a typo? If not, please clarify your question. — Alexander
– Alexander, Commented Jul 16, 2022 at 21:52
@Alexander there are two arrays in the question: bonusCardsTest and getBonusURLsArray — Gleb
– Gleb, Commented Jul 22, 2022 at 18:36
@Gleb One is just a result of a computation over the other. The two aren't "mapped" together — Alexander
– Alexander, Commented Jul 22, 2022 at 18:44

Alexander · Accepted Answer · 2022-07-16 21:52:00Z

2

As Larme says, you could map your array of URLs to BonusCards:

let bonusCards = getBonusURLsArray.map { BonusCard(url: $0) }

edited Jul 16, 2022 at 21:52

Alexander

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answered Jul 16, 2022 at 19:43

Duncan C

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