411 REFERENCE · Wikibooks
99 Elm Problems/Problem 21
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Insert an element at a given position into a list.
import Html exposing (text)
import List
insertAt : Int -> a -> List a -> List a
-- your implementation goes here
main =
text <| toString <|
insertAt 2 42 [1..4]
Result:
[1, 42, 2, 3, 4]
Solutions