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swift remove all duplicates from an array

TheKrisinator answered on June 18, 2021 Popularity 9/10 Helpfulness 7/10

answer swift remove all duplicates from an array

related remove duplicate elements from array - swift 5

swift remove all duplicates from an array

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extension Sequence where Element: Hashable {
    func uniqued() -> [Element] {
        var set = Set<Element>()
        return filter { set.insert($0).inserted }
    }
}

func foobar() {
    let myUniqueArray = [1,2,4,2,1].uniqued()  // => [1,2,4]
}

Popularity 9/10 Helpfulness 7/10 Language swift

Source: stackoverflow.com

Tags: swift

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Contributed on Jun 18 2021

TheKrisinator

0 Answers Avg Quality 2/10

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remove duplicate elements from array - swift 5

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let fruits = ["apple", "pear", "pear", "banana", "apple"]

let noDuplicates = Array(Set(fruits))	// ["apple", "pear", "banana"]
//This is super short and works very well. 
//It has one possibly big disadvantage and that is it loses the order of items. 
//If you don’t care about order, then it does not matter. 
// Otherwise just call sorted or sort as a last step like below
let orderedArray = noDuplicates.sorted()

Popularity 8/10 Helpfulness 4/10 Language swift

Source: Grepper

Tags: swift items elements element string

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Contributed on Feb 03 2023

Nayan Dave (iOS Dev.)

0 Answers Avg Quality 2/10

swift remove all duplicates from an array

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swift remove all duplicates from an array

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remove duplicate elements from array - swift 5

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