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module Util.Array exposing (update, update_unsafe)
import Array
update : (
Int ->
((Maybe t) -> (Maybe t)) ->
(Array.Array t) ->
(Array.Array t)
)
update index fun array =
case (fun (Array.get index array)) of
Nothing -> array
(Just e) -> (Array.set index e array)
update_unsafe : (
Int ->
(t -> t) ->
(Array.Array t) ->
(Array.Array t)
)
update_unsafe index fun array =
case (Array.get index array) of
Nothing -> array
(Just e) -> (Array.set index (fun e) array)
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