diff --git a/zh-cn/application-dev/reference/apis/js-apis-arraylist.md b/zh-cn/application-dev/reference/apis/js-apis-arraylist.md
index a0004ab25d3b0ebd422b3aa839065bead05b09d7..dd9a810be7cc4f0e7ee47c542b26cb107a363ce9 100644
--- a/zh-cn/application-dev/reference/apis/js-apis-arraylist.md
+++ b/zh-cn/application-dev/reference/apis/js-apis-arraylist.md
@@ -319,10 +319,10 @@ arrayList.add(2);
 arrayList.add(4);
 arrayList.add(5);
 arrayList.add(4);
-arrayList.replaceAllElements((value, index) => {
+arrayList.replaceAllElements((value: number, index: number)=> {
   return value = 2 * value;
 });
-arrayList.replaceAllElements((value, index) => {
+arrayList.replaceAllElements((value: number, index: number) => {
   return value = value - 2;
 });
 ```
@@ -393,8 +393,8 @@ arrayList.add(2);
 arrayList.add(4);
 arrayList.add(5);
 arrayList.add(4);
-arrayList.sort((a, b) => a - b);
-arrayList.sort((a, b) => b - a);
+arrayList.sort((a: number, b: number) => a - b);
+arrayList.sort((a: number, b: number) => b - a);
 arrayList.sort();
 ```
 
diff --git a/zh-cn/application-dev/reference/apis/js-apis-list.md b/zh-cn/application-dev/reference/apis/js-apis-list.md
index bbb62d162dfa7a62eed3845750fba59a6921003c..18e88714732fe279c5bb7ffecfdae50911bd7b0f 100644
--- a/zh-cn/application-dev/reference/apis/js-apis-list.md
+++ b/zh-cn/application-dev/reference/apis/js-apis-list.md
@@ -363,10 +363,10 @@ list.add(2);
 list.add(4);
 list.add(5);
 list.add(4);
-list.replaceAllElements((value, index) => {
+list.replaceAllElements((value: number, index: number) => {
   return value = 2 * value;
 });
-list.replaceAllElements((value, index) => {
+list.replaceAllElements((value: number, index: number) => {
   return value = value - 2;
 });
 ```
@@ -438,8 +438,8 @@ list.add(2);
 list.add(4);
 list.add(5);
 list.add(4);
-list.sort((a, b) => a - b);
-list.sort((a, b) => b - a);
+list.sort((a: number, b: number) => a - b);
+list.sort((a: number, b: number) => b - a);
 ```
 
 ### getSubList
@@ -471,9 +471,9 @@ list.add(2);
 list.add(4);
 list.add(5);
 list.add(4);
-let result = list.subList(2, 4);
-let result1 = list.subList(4, 3);
-let result2 = list.subList(2, 6);
+let result = list.getSubList(2, 4);
+let result1 = list.getSubList(4, 3);
+let result2 = list.getSubList(2, 6);
 ```
 
 ### clear
diff --git a/zh-cn/application-dev/reference/apis/js-apis-vector.md b/zh-cn/application-dev/reference/apis/js-apis-vector.md
index d45bb5612d4093160da3d7c148d9e007353cf86b..c57bbca6ded6ba8ecc5d7d6449849f982ac4cdfa 100644
--- a/zh-cn/application-dev/reference/apis/js-apis-vector.md
+++ b/zh-cn/application-dev/reference/apis/js-apis-vector.md
@@ -318,10 +318,10 @@ vector.add(2);
 vector.add(4);
 vector.add(5);
 vector.add(4);
-vector.replaceAllElements((value, index) => {
+vector.replaceAllElements((value: number, index: number) => {
   return value = 2 * value;
 });
-vector.replaceAllElements((value, index) => {
+vector.replaceAllElements((value: number, index: number) => {
   return value = value - 2;
 });
 ```
@@ -393,8 +393,8 @@ vector.add(2);
 vector.add(4);
 vector.add(5);
 vector.add(4);
-vector.sort((a, b) => a - b);
-vector.sort((a, b) => b - a);
+vector.sort((a: number, b: number) => a - b);
+vector.sort((a: number, b: number) => b - a);
 vector.sort();
 ```
 
@@ -619,7 +619,7 @@ vector.add(2);
 vector.add(4);
 vector.add(5);
 vector.add(4);
-let result = vector.toSting();
+let result = vector.toString();
 ```
 
 ### copyToArray