Add the Nth function #144
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Add the Nth function #144
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The naming on this is probably bad, I'd assume `head` would return Maybe, and you'd have a headDefault or something for a default head
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I'm unsure if my index's for nth is right Stdlib.Prelude> (nth 1 [1;2;3;4;5])
just 2
Stdlib.Prelude> (nth 0 [1;2;3;4;5])
just 1
Stdlib.Prelude> (nth 7 [1;2;3;4;5])
nothing |
heueristik
reviewed
Nov 7, 2024
| @@ -96,6 +92,10 @@ drop {A} : (elemsNum : Nat) -> (list : List A) -> List A | |||
| | (suc n) (x :: xs) := drop n xs | |||
| | _ xs := xs; | |||
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| --- Take the nth value of a ;List; | |||
| nth {A} : Nat -> List A -> Maybe A | |||
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Can we use the named syntax to allow people using it in case the want to?
mariari
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Useful definition that someone may want to call