Swift 2.1: How do you produce a set from an array?

Question

Scenario: An array of strings, many are duplicated.

Goal: Produce a UNIQUE array of strings.

Modus Operandi: I was thinking of converting the array to a set of strings which become unique; from which to generate a new array of unique strings.

Question: How does one convert a Swift array into a Swift Set?

See http://stackoverflow.com/questions/25738817 or http://stackoverflow.com/questions/27624331 — Rob, Dec 22 '15 at 01:55

score 7 · Answer 1 · answered Dec 22 '15 at 01:31

7

Have you tried let myset = Set(myarray) ?

answered Dec 22 '15 at 01:31

Chris Dennett

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score 7 · Accepted Answer · answered Dec 22 '15 at 01:40

7

let nonUniqueArray = ["A", "B", "C", "C", "B", "A"]
let uniqueArray = Array(Set(nonUniqueArray))
print(uniqueArray)

produces

["C", "B", "A"]

Swift 2.2 produces exactly the same result as well.

answered Dec 22 '15 at 01:40

timbo

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Swift 2.1: How do you produce a set from an array?

2 Answers2