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-rw-r--r--src/gleam/list.gleam17
1 files changed, 5 insertions, 12 deletions
diff --git a/src/gleam/list.gleam b/src/gleam/list.gleam
index 6278c6e..07a6953 100644
--- a/src/gleam/list.gleam
+++ b/src/gleam/list.gleam
@@ -882,6 +882,8 @@ pub fn intersperse(list: List(a), with elem: a) -> List(a) {
///
/// Error(Nil) is returned if the list is not long enough for the given index.
///
+/// For any `index` less than 0 this function behaves as if it was set to 0.
+///
/// ## Examples
///
/// > at([1, 2, 3], 1)
@@ -891,18 +893,9 @@ pub fn intersperse(list: List(a), with elem: a) -> List(a) {
/// Error(Nil)
///
pub fn at(in list: List(a), get index: Int) -> Result(a, Nil) {
- case index < 0 {
- True -> Error(Nil)
- False ->
- case list {
- [] -> Error(Nil)
- [x, ..rest] ->
- case index == 0 {
- True -> Ok(x)
- False -> at(rest, index - 1)
- }
- }
- }
+ list
+ |> drop(index)
+ |> first
}
/// Removes any duplicate elements from a given list.