Created
November 4, 2021 05:50
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Selected Elements by Selected Indexes
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| import Foundation | |
| let array = [0, 1, 2, 3, 4, 5, 6, 7, 8] | |
| let selectedIndexes = [0, 1, 3, 5, 7] | |
| extension Array { | |
| subscript (safe index: Int) -> Element? { | |
| return indices ~= index ? self[index] : nil | |
| } | |
| } | |
| let selectedElements = selectedIndexes | |
| .compactMap { array[safe: $0] } | |
| print(selectedElements) |
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