Array fold_right

2 files changed, 7 insertions, 0 deletions

diff --git a/src/ffi.js b/src/ffi.js
index 91a2f73..81362bb 100644
--- a/src/ffi.js
+++ b/src/ffi.js
@@ -13,3 +13,7 @@ export function length(thing) {
 export function reduce(thing, acc, fn) {
   return thing.reduce(fn, acc);
 }
+
+export function reduceRight(thing, acc, fn) {
+  return thing.reduceRight(fn, acc);
+}
diff --git a/src/gleam/javascript/array.gleam b/src/gleam/javascript/array.gleam
index 20d12d1..0895ff1 100644
--- a/src/gleam/javascript/array.gleam
+++ b/src/gleam/javascript/array.gleam
@@ -14,3 +14,6 @@ pub external fn map(Array(a), fn(a) -> b) -> Array(b) =
 
 pub external fn fold(Array(e), a, fn(a, e) -> a) -> a =
   "../../ffi.js" "reduce"
+
+pub external fn fold_right(Array(e), a, fn(a, e) -> a) -> a =
+  "../../ffi.js" "reduceRight"