diff --git a/container/arraylist/js_arraylist.ts b/container/arraylist/js_arraylist.ts
index e22465c25d3c360e11b254e2ee0b917b102e4b91..a0112fe3a4ffb591a7e9c8d112b6dfcfea5452fd 100644
--- a/container/arraylist/js_arraylist.ts
+++ b/container/arraylist/js_arraylist.ts
@@ -302,6 +302,5 @@ if (flag || fastArrayList == undefined) {
   Object.freeze(ArrayList);
   fastArrayList = ArrayList;
 }
-export default {
-  ArrayList: fastArrayList,
-};
+export default fastArrayList;
+
diff --git a/container/deque/js_deque.ts b/container/deque/js_deque.ts
index 7d75fc2164b79d7ac36f77f015f2f848c9968f27..980507c28e383df6c20ff2fad442f852a69d1997 100644
--- a/container/deque/js_deque.ts
+++ b/container/deque/js_deque.ts
@@ -189,6 +189,4 @@ if (flag || fastDeque == undefined) {
   Object.freeze(Deque);
   fastDeque = Deque;
 }
-export default {
-  Deque: fastDeque,
-};
+export default fastDeque;
diff --git a/container/hashmap/js_hashmap.ts b/container/hashmap/js_hashmap.ts
index 309878d74f5a8c13ce3c45cd0c073c4a46d0b5dc..542aad4d4d63d15b5adc05da031036fbccd6bd28 100644
--- a/container/hashmap/js_hashmap.ts
+++ b/container/hashmap/js_hashmap.ts
@@ -162,7 +162,4 @@ if (flag || fastHashMap === undefined) {
   Object.freeze(HashMap);
   fastHashMap = HashMap;
 }
-
-export default {
-  HashMap: fastHashMap,
-};
+export default fastHashMap;
diff --git a/container/hashset/js_hashset.ts b/container/hashset/js_hashset.ts
index a7def21a71a7ef8523bdf8f12883f07481f0e7eb..394affff5ab1e11f82e5bea58dd80c2fbc6c41a6 100644
--- a/container/hashset/js_hashset.ts
+++ b/container/hashset/js_hashset.ts
@@ -131,7 +131,4 @@ if (flag || fastHashSet === undefined) {
   Object.freeze(HashSet);
   fastHashSet = HashSet;
 }
-
-export default {
-  HashSet: fastHashSet,
-};
+export default fastHashSet;
\ No newline at end of file
diff --git a/container/lightweightmap/js_lightweightmap.ts b/container/lightweightmap/js_lightweightmap.ts
index e9e2e3428d3d7ad85dc7604151321642a9921205..72ba6c1b1bc178b805611065620c60d05b318d99 100644
--- a/container/lightweightmap/js_lightweightmap.ts
+++ b/container/lightweightmap/js_lightweightmap.ts
@@ -211,7 +211,4 @@ if (flag || fastLightWeightMap === undefined) {
   Object.freeze(LightWeightMap);
   fastLightWeightMap = LightWeightMap;
 }
-
-export default {
-  LightWeightMap: fastLightWeightMap,
-};
+export default fastLightWeightMap;
diff --git a/container/lightweightset/js_lightweightset.ts b/container/lightweightset/js_lightweightset.ts
index 7e52388dcf2614d840d7eff5ed2172d85f58536b..46c1e19a0ee06ac390fbded06826db6369b7820f 100644
--- a/container/lightweightset/js_lightweightset.ts
+++ b/container/lightweightset/js_lightweightset.ts
@@ -171,7 +171,4 @@ if (flag || fastLightWeightSet === undefined) {
   Object.freeze(LightWeightSet);
   fastLightWeightSet = LightWeightSet;
 }
-
-export default {
-  LightWeightSet: fastLightWeightSet,
-};
+export default fastLightWeightSet;
diff --git a/container/linkedlist/js_linkedlist.ts b/container/linkedlist/js_linkedlist.ts
index a4bba1023926c1b92150afc8b49f64f15d5295f9..9f33e5bab224c123560aa6929c8b4d38e14a3a20 100644
--- a/container/linkedlist/js_linkedlist.ts
+++ b/container/linkedlist/js_linkedlist.ts
@@ -407,6 +407,4 @@ if (flag || fastLinkedList == undefined) {
   Object.freeze(LinkedList);
   fastLinkedList = LinkedList;
 }
-export default {
-  LinkedList: fastLinkedList,
-};
+export default fastLinkedList;
diff --git a/container/list/js_list.ts b/container/list/js_list.ts
index 00b235ada6050610756b5dc88bf7e214c95acde5..1aa704b5e10541d3329c2b442077d7c6e5cb3e3f 100644
--- a/container/list/js_list.ts
+++ b/container/list/js_list.ts
@@ -371,6 +371,4 @@ if (flag || fastList == undefined) {
   Object.freeze(List);
   fastList = List;
 }
-export default {
-  List: fastList,
-};
+export default fastList;
\ No newline at end of file
diff --git a/container/plainarray/js_plainarray.ts b/container/plainarray/js_plainarray.ts
index f1855af85ac790cef9a92f7a77281bbfd75a2c69..6e0ae1a2dfefd24f68ec6b06e50af963aa9da629 100644
--- a/container/plainarray/js_plainarray.ts
+++ b/container/plainarray/js_plainarray.ts
@@ -154,7 +154,4 @@ if (flag || fastPlainArray === undefined) {
   Object.freeze(PlainArray);
   fastPlainArray = PlainArray;
 }
-
-export default {
-  PlainArray: fastPlainArray,
-};
+export default fastPlainArray;
diff --git a/container/queue/js_queue.ts b/container/queue/js_queue.ts
index 71176b78a9c59de8771901a6a9e23aa6fd75dd47..30a6a47574ccbcba43d7e11504070e0249a03ea4 100644
--- a/container/queue/js_queue.ts
+++ b/container/queue/js_queue.ts
@@ -147,6 +147,4 @@ if (flag || fastQueue == undefined) {
   Object.freeze(Queue);
   fastQueue = Queue;
 }
-export default {
-  Queue: fastQueue,
-};
+export default fastQueue;
diff --git a/container/stack/js_stack.ts b/container/stack/js_stack.ts
index 3f27e5e46040aaa60d8fb58a18234fe89a4b1366..80efb4b1220aa2305f42b10d272c3b9e06a584a8 100644
--- a/container/stack/js_stack.ts
+++ b/container/stack/js_stack.ts
@@ -149,6 +149,4 @@ if (flag || fastStack == undefined) {
   Object.freeze(Stack);
   fastStack = Stack;
 }
-export default {
-  Stack: fastStack,
-};
+export default fastStack;
diff --git a/container/treemap/js_treemap.ts b/container/treemap/js_treemap.ts
index 18d1204592bac26ed3b3baaab02811d05efcd625..90ac9e3a495bf767134420f6b3bdcddf9e3b1885 100644
--- a/container/treemap/js_treemap.ts
+++ b/container/treemap/js_treemap.ts
@@ -199,7 +199,4 @@ if (flag || fastTreeMap === undefined) {
   Object.freeze(TreeMap);
   fastTreeMap = TreeMap;
 }
-
-export default {
-  TreeMap: fastTreeMap,
-};
+export default fastTreeMap;
diff --git a/container/treeset/js_treeset.ts b/container/treeset/js_treeset.ts
index 8a0e450a8f115a403d56bb7b7ce1794437e2d9aa..8ce0e00c490413554a96587700a6a721333b3206 100644
--- a/container/treeset/js_treeset.ts
+++ b/container/treeset/js_treeset.ts
@@ -184,7 +184,4 @@ if (flag || fastTreeSet === undefined) {
   Object.freeze(TreeSet);
   fastTreeSet = TreeSet;
 }
-
-export default {
-  TreeSet: fastTreeSet,
-};
+export default fastTreeSet;
diff --git a/container/vector/js_vector.ts b/container/vector/js_vector.ts
index 34340615ca61b98333d7ad2136222550af12a1a9..28e946d9c769ded0640fc364985c5576db4b8242 100644
--- a/container/vector/js_vector.ts
+++ b/container/vector/js_vector.ts
@@ -347,6 +347,4 @@ if (flag || fastVector == undefined) {
   Object.freeze(Vector);
   fastVector = Vector;
 }
-export default {
-  Vector: fastVector,
-};
+export default fastVector;