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-rw-r--r--lib/stdlib/src/maps.erl18
1 files changed, 17 insertions, 1 deletions
diff --git a/lib/stdlib/src/maps.erl b/lib/stdlib/src/maps.erl
index fd6d56fa47..4ef1638e6d 100644
--- a/lib/stdlib/src/maps.erl
+++ b/lib/stdlib/src/maps.erl
@@ -23,7 +23,8 @@
fold/3,
map/2,
size/1,
- without/2
+ without/2,
+ get/3
]).
@@ -142,6 +143,21 @@ values(_) -> erlang:nif_error(undef).
%%% End of BIFs
+-spec get(Key, Map, Default) -> Value | Default when
+ Key :: term(),
+ Map :: map(),
+ Value :: term(),
+ Default :: term().
+
+get(Key, Map, Default) ->
+ case maps:find(Key, Map) of
+ {ok, Value} ->
+ Value;
+ error ->
+ Default
+ end.
+
+
-spec fold(Fun,Init,Map) -> Acc when
Fun :: fun((K, V, AccIn) -> AccOut),
Init :: term(),