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| https://www.hackerrank.com/challenges/fp-filter-array/problem | |
| import Foundation | |
| func filterList(_ upperLimit: Int, _ list: [Int]) -> [Int] { | |
| if list.count <= 0 { | |
| return [] | |
| } | |
| let element = list.first! |
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| https://www.hackerrank.com/challenges/fp-filter-positions-in-a-list/problem | |
| import Foundation | |
| func filterOddElements(_ list: [Int]) -> [Int] { | |
| if list.count <= 1 { | |
| return [] | |
| } | |
| let elements = list.prefix(2) |
vibinnair
/ gist:51e95bdbe180af2d07f3ceca522250d7
Created
August 5, 2019 07:51
Functional Swift: Retreive all hashtags from a string
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| //Ref: https://www.swiftbysundell.com/basics/map-flatmap-and-compactmap | |
| import Foundation | |
| func hashTags(from string: String) -> [String] { | |
| return string.components(separatedBy: .whitespacesAndNewlines) | |
| .filter {string in string.starts(with: "#")} | |
| } | |
| print(hashTags(from: "#WWDC 2019 was #awesome #greatday")) |
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