diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/ffi.js | 6 | ||||
| -rw-r--r-- | src/gleam/javascript/array.gleam | 5 |
2 files changed, 11 insertions, 0 deletions
@@ -1,3 +1,5 @@ +import { Ok, Error } from "./gleam.js"; + export function toArray(list) { return list.toArray(); } @@ -17,3 +19,7 @@ export function reduce(thing, acc, fn) { export function reduceRight(thing, acc, fn) { return thing.reduceRight(fn, acc); } + +export function index(thing, index) { + return index in thing ? new Ok(thing[index]) : new Error(undefined); +} diff --git a/src/gleam/javascript/array.gleam b/src/gleam/javascript/array.gleam index 0895ff1..4b59b85 100644 --- a/src/gleam/javascript/array.gleam +++ b/src/gleam/javascript/array.gleam @@ -1,3 +1,5 @@ +// TODO: docs +// TODO: labels pub external type Array(element) pub external fn to_list(Array(element)) -> List(element) = @@ -17,3 +19,6 @@ pub external fn fold(Array(e), a, fn(a, e) -> a) -> a = pub external fn fold_right(Array(e), a, fn(a, e) -> a) -> a = "../../ffi.js" "reduceRight" + +pub external fn get(Array(e), Int) -> Result(e, Nil) = + "../../ffi.js" "index" |