diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/map_dict.gleam | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/src/map_dict.gleam b/src/map_dict.gleam index 6033866..c25378f 100644 --- a/src/map_dict.gleam +++ b/src/map_dict.gleam @@ -86,3 +86,11 @@ pub fn update(dict, key, f) { | Error(_) -> put(dict, key, f(Error(NotFound))) } } + +pub fn fold(dict, acc, f) { + let kvs = to_list(dict) + case kvs { + | [] -> acc + | [{k, v} | _] -> fold(delete(dict, k), f(k, v, acc), f) + } +} |