Swift dictionary: return values for all keys containing a prefix

Question

I have a Dictionary (Swift 5)

dict = ["ken" : 0, "Kendall" : 1, "kenny" : 2, "Sam" : 0, "Ben" : 3]

I'm trying to build a search function that returns the values for all keys/names containing the prefix

so if the input is "ken" it should return the values for the keys/names "ken", "Kendall", and "Kenny" because they all contain "ken" in their first 3 characters.

func search( string : String, dict : [String:Int] )->[Int] { }

returns [0,1,2]

did you have a look at this: https://stackoverflow.com/a/41386238/13129471? — mflknr, Aug 15 '22 at 19:29
No I didn't but I think the solution might be included in there. Thank you — Abraham, Aug 15 '22 at 19:32
One way is `dict.compactMap { $0.key.localizedStandardContains(string) ? $0.value : nil }` — Joakim Danielson, Aug 15 '22 at 20:46

score 0 · Accepted Answer · edited Aug 20 '22 at 19:14

0

let dict = ["ken" : 0, "Kendall" : 1, "kenny" : 2, "Sam" : 0, "Ben" : 3]

let result = dict.filter( { $0.key.lowercased().hasPrefix("ken") } ).values

edited Aug 20 '22 at 19:14

Leonid Pavlov

671
8
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answered Aug 15 '22 at 20:06

Scott Anderson

16
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Swift dictionary: return values for all keys containing a prefix

1 Answers1