diff --git a/zh-cn/application-dev/reference/apis/js-apis-app-ability-abilityManager.md b/zh-cn/application-dev/reference/apis/js-apis-app-ability-abilityManager.md
index 6eba57a0f44f6a4c0ac43e0ef1562f944d6dd330..bca1c482f54aeaaffb034aeb0ab657f4e23e318d 100644
--- a/zh-cn/application-dev/reference/apis/js-apis-app-ability-abilityManager.md
+++ b/zh-cn/application-dev/reference/apis/js-apis-app-ability-abilityManager.md
@@ -64,7 +64,7 @@ const config = {
   language: 'Zh-Hans',                 // 简体中文
   colorMode: COLOR_MODE_LIGHT,         // 浅色模式
   direction: DIRECTION_VERTICAL,       // 垂直方向
-  screenDensity: SCREEN_DENSITY_SDPI,  // 屏幕分辨率为'sdpi'
+  screenDensity: SCREEN_DENSITY_SDPI,  // 屏幕像素密度为'sdpi'
   displayId: 1,                        // 应用在Id为1的物理屏上显示
   hasPointerDevice: true,              // 指针类型设备已连接
 };
@@ -76,7 +76,7 @@ try {
         } else {
             console.log('updateConfiguration success.');
         }
-    })
+    });
 } catch (paramError) {
     console.log('error.code: ' + JSON.stringify(paramError.code)
         + ' error.message: ' + JSON.stringify(paramError.message));
@@ -122,7 +122,7 @@ const config = {
   language: 'Zh-Hans',                 // 简体中文
   colorMode: COLOR_MODE_LIGHT,         // 浅色模式
   direction: DIRECTION_VERTICAL,       // 垂直方向
-  screenDensity: SCREEN_DENSITY_SDPI,  // 屏幕分辨率为'sdpi'
+  screenDensity: SCREEN_DENSITY_SDPI,  // 屏幕像素密度为'sdpi'
   displayId: 1,                        // 应用在Id为1的物理屏上显示
   hasPointerDevice: true,              // 指针类型设备已连接
 };
@@ -132,7 +132,7 @@ try {
         console.log('updateConfiguration success.');
     }).catch((err) => {
         console.log('updateConfiguration fail, err: ' + JSON.stringify(err));
-    })
+    });
 } catch (paramError) {
     console.log('error.code: ' + JSON.stringify(paramError.code)
         + ' error.message: ' + JSON.stringify(paramError.message));
@@ -311,7 +311,7 @@ try {
         console.log('getExtensionRunningInfos success, data: ' + JSON.stringify(data));
     }).catch((err) => {
         console.log('getExtensionRunningInfos fail, err: '  + JSON.stringify(err));
-    })
+    });
 } catch (paramError) {
     console.log('error.code: ' + JSON.stringify(paramError.code)
         + ' error.message: ' + JSON.stringify(paramError.message));
@@ -385,5 +385,5 @@ abilityManager.getTopAbility().then((data) => {
     console.log('getTopAbility success, data: ' + JSON.stringify(data));
 }).catch((err) => {
     console.log('getTopAbility fail, err: '  + JSON.stringify(err));
-})
+});
 ```
\ No newline at end of file
diff --git a/zh-cn/application-dev/reference/apis/js-apis-app-ability-appManager.md b/zh-cn/application-dev/reference/apis/js-apis-app-ability-appManager.md
index 8125920f170971c348d2ab85d71808b5a776fd17..f28cef3305da8e31e4c0f2f3f3a6195dcfcf930b 100644
--- a/zh-cn/application-dev/reference/apis/js-apis-app-ability-appManager.md
+++ b/zh-cn/application-dev/reference/apis/js-apis-app-ability-appManager.md
@@ -45,7 +45,7 @@ appManager.isRunningInStabilityTest((err, flag) => {
     } else {
         console.log('The result of isRunningInStabilityTest is:' + JSON.stringify(flag));
     }
-})  
+});
 ```
 
 
@@ -151,7 +151,7 @@ appManager.isRamConstrainedDevice((err, data) => {
     } else {
         console.log('The result of isRamConstrainedDevice is:' + JSON.stringify(data));
     }
-})
+});
 ```
 
 ## appManager.getAppMemorySize
@@ -221,7 +221,7 @@ appManager.getAppMemorySize((err, data) => {
     } else {
         console.log('The size of app memory is:' + JSON.stringify(data));
     }
-})
+});
 ```
 
 ## appManager.getRunningProcessInformation
@@ -295,7 +295,7 @@ appManager.getRunningProcessInformation((err, data) => {
     } else {
         console.log('The process running information is:' + JSON.stringify(data));
     }
-})
+});
 ```
 
 ## appManager.on
@@ -352,7 +352,7 @@ let applicationStateObserver = {
     onProcessStateChanged(processData) {
         console.log(`[appManager] onProcessStateChanged: ${JSON.stringify(processData)}`);
     }
-}
+};
 try {
     const observerId = appManager.on('applicationState', applicationStateObserver);
     console.log(`[appManager] observerCode: ${observerId}`);
@@ -416,7 +416,7 @@ let applicationStateObserver = {
     onProcessStateChanged(processData) {
         console.log(`[appManager] onProcessStateChanged: ${JSON.stringify(processData)}`);
     }
-}
+};
 let bundleNameList = ['bundleName1', 'bundleName2'];
 try {
     const observerId = appManager.on('applicationState', applicationStateObserver, bundleNameList);
@@ -478,7 +478,7 @@ let applicationStateObserver = {
     onProcessStateChanged(processData) {
         console.log(`[appManager] onProcessStateChanged: ${JSON.stringify(processData)}`);
     }
-}
+};
 let bundleNameList = ['bundleName1', 'bundleName2'];
 try {
     observerId = appManager.on('applicationState', applicationStateObserver, bundleNameList);
@@ -559,7 +559,7 @@ let applicationStateObserver = {
     onProcessStateChanged(processData) {
         console.log(`[appManager] onProcessStateChanged: ${JSON.stringify(processData)}`);
     }
-}
+};
 let bundleNameList = ['bundleName1', 'bundleName2'];
 try {
     observerId = appManager.on('applicationState', applicationStateObserver, bundleNameList);
@@ -574,7 +574,7 @@ try {
         console.log('unregisterApplicationStateObserver success, data: ' + JSON.stringify(data));
     }).catch((err) => {
         console.log('unregisterApplicationStateObserver faile, err: ' + JSON.stringify(err));
-    })
+    });
 } catch (paramError) {
     console.log('error: ' + paramError.code + ', ' + paramError.message);
 }
@@ -660,7 +660,7 @@ appManager.getForegroundApplications().then((data) => {
     console.log('getForegroundApplications success, data: ' + JSON.stringify(data));
 }).catch((err) => {
     console.log('getForegroundApplications fail, err: ' + JSON.stringify(err));
-})
+});
 ```
 
 ## appManager.killProcessWithAccount
@@ -702,7 +702,7 @@ try {
         console.log('killProcessWithAccount success');
     }).catch((err) => {
         console.error('killProcessWithAccount fail, err: ' + JSON.stringify(err));
-    })
+    });
 } catch (paramError) {
     console.error('error: ' + paramError.code + ', ' + paramError.message);
 }
@@ -844,7 +844,7 @@ try {
         console.log('killProcessesByBundleName success.');
     }).catch((err) => {
         console.log('killProcessesByBundleName fail, err: ' + JSON.stringify(err));
-    })
+    });
 } catch (paramError) {
     console.log('error: ' + paramError.code + ', ' + paramError.message);
 }
@@ -940,7 +940,7 @@ try {
         console.log('clearUpApplicationData success.');
     }).catch((err) => {
         console.log('clearUpApplicationData fail, err: ' + JSON.stringify(err));
-    })
+    });
 } catch (paramError) {
     console.log('error: ' + paramError.code + ', ' + paramError.message);
 }
diff --git a/zh-cn/application-dev/reference/apis/js-apis-app-ability-configuration.md b/zh-cn/application-dev/reference/apis/js-apis-app-ability-configuration.md
index 6b46b05282b050346a2f7386af702cefec17cb05..f7db417887d5888f148e27b49fed38d0c98645e7 100644
--- a/zh-cn/application-dev/reference/apis/js-apis-app-ability-configuration.md
+++ b/zh-cn/application-dev/reference/apis/js-apis-app-ability-configuration.md
@@ -13,7 +13,7 @@
 | language | string | 是 | 是 | 表示应用程序的当前语言。例如：zh。 |
 | colorMode | [ColorMode](js-apis-app-ability-configurationConstant.md#configurationconstantcolormode) | 是 | 是 | 表示深浅色模式，取值范围：未设置(COLOR_MODE_NOT_SET)，浅色模式（COLOR_MODE_LIGHT），深色模式（COLOR_MODE_DARK）。默认为浅色。 |
 | direction | [Direction](js-apis-app-ability-configurationConstant.md#configurationconstantdirection) | 是 | 否 | 表示屏幕方向，取值范围：未设置(DIRECTION_NOT_SET)，水平方向（DIRECTION_HORIZONTAL），垂直方向（DIRECTION_VERTICAL）。 |
-| screenDensity  | [ScreenDensity](js-apis-app-ability-configurationConstant.md#configurationconstantscreendensity) | 是 | 否 | 表示屏幕分辨率，取值范围：未设置(SCREEN_DENSITY_NOT_SET)，SCREEN_DENSITY_SDPI（120）、SCREEN_DENSITY_MDPI（160）、SCREEN_DENSITY_LDPI（240）、SCREEN_DENSITY_XLDPI（320）、SCREEN_DENSITY_XXLDPI（480）、SCREEN_DENSITY_XXXLDPI（640）。 |
+| screenDensity  | [ScreenDensity](js-apis-app-ability-configurationConstant.md#configurationconstantscreendensity) | 是 | 否 | 表示屏幕像素密度，取值范围：未设置(SCREEN_DENSITY_NOT_SET)，SCREEN_DENSITY_SDPI（120）、SCREEN_DENSITY_MDPI（160）、SCREEN_DENSITY_LDPI（240）、SCREEN_DENSITY_XLDPI（320）、SCREEN_DENSITY_XXLDPI（480）、SCREEN_DENSITY_XXXLDPI（640）。 |
 | displayId  | number | 是 | 否 | 表示应用所在的物理屏幕Id。 |
 | hasPointerDevice  | boolean | 是 | 否 | 指示指针类型设备是否已连接，如键鼠、触控板等。 |
 
@@ -28,7 +28,7 @@
     onCreate(want, launchParam) {
       let envCallback = {
         onConfigurationUpdated(config) {
-          console.info(`envCallback onConfigurationUpdated success: ${JSON.stringify(config)}`)
+          console.info(`envCallback onConfigurationUpdated success: ${JSON.stringify(config)}`);
           let language = config.language;
           let colorMode = config.colorMode;
           let direction = config.direction;
diff --git a/zh-cn/application-dev/reference/apis/js-apis-app-ability-configurationConstant.md b/zh-cn/application-dev/reference/apis/js-apis-app-ability-configurationConstant.md
index b9d69888dd49c2251857dfc922a34feacd31270f..f3f964d21f61b89a612e7ba5fb5405e4d97686b7 100644
--- a/zh-cn/application-dev/reference/apis/js-apis-app-ability-configurationConstant.md
+++ b/zh-cn/application-dev/reference/apis/js-apis-app-ability-configurationConstant.md
@@ -46,10 +46,10 @@ import ConfigurationConstant from '@ohos.app.ability.ConfigurationConstant';
 
 | 名称 | 值 | 说明 | 
 | -------- | -------- | -------- |
-| SCREEN_DENSITY_NOT_SET | 0 | 未设置屏幕分辨率。 | 
-| SCREEN_DENSITY_SDPI | 120 | 屏幕分辨率为'sdpi'。 | 
-| SCREEN_DENSITY_MDPI | 160 | 屏幕分辨率为'mdpi'。 | 
-| SCREEN_DENSITY_LDPI | 240 | 屏幕分辨率为'ldpi'。 | 
-| SCREEN_DENSITY_XLDPI | 320 | 屏幕分辨率为'xldpi'。 | 
-| SCREEN_DENSITY_XXLDPI | 480 | 屏幕分辨率为'xxldpi'。 | 
-| SCREEN_DENSITY_XXXLDPI | 640 | 屏幕分辨率为'xxxldpi'。 | 
+| SCREEN_DENSITY_NOT_SET | 0 | 未设置屏幕像素密度。 | 
+| SCREEN_DENSITY_SDPI | 120 | 屏幕像素密度为'sdpi'。 | 
+| SCREEN_DENSITY_MDPI | 160 | 屏幕像素密度为'mdpi'。 | 
+| SCREEN_DENSITY_LDPI | 240 | 屏幕像素密度为'ldpi'。 | 
+| SCREEN_DENSITY_XLDPI | 320 | 屏幕像素密度为'xldpi'。 | 
+| SCREEN_DENSITY_XXLDPI | 480 | 屏幕像素密度为'xxldpi'。 | 
+| SCREEN_DENSITY_XXXLDPI | 640 | 屏幕像素密度为'xxxldpi'。 | 
diff --git a/zh-cn/application-dev/reference/apis/js-apis-app-ability-environmentCallback.md b/zh-cn/application-dev/reference/apis/js-apis-app-ability-environmentCallback.md
index 8be834690c4f77b3ed5bd59a9f4b7f236b073471..966d68466c737df532edd8d6fd96468e4638c396 100644
--- a/zh-cn/application-dev/reference/apis/js-apis-app-ability-environmentCallback.md
+++ b/zh-cn/application-dev/reference/apis/js-apis-app-ability-environmentCallback.md
@@ -53,7 +53,7 @@ let callbackId;
 
 export default class MyAbility extends Ability {
     onCreate() {
-        console.log('MyAbility onCreate')
+        console.log('MyAbility onCreate');
         globalThis.applicationContext = this.context.getApplicationContext();
         let EnvironmentCallback  =  {
             onConfigurationUpdated(config){
@@ -62,7 +62,7 @@ export default class MyAbility extends Ability {
             onMemoryLevel(level){
                 console.log('onMemoryLevel level: ${JSON.stringify(level)}');
             }
-        }
+        };
         // 1.获取applicationContext
         let applicationContext = globalThis.applicationContext;
         // 2.通过applicationContext注册监听应用内生命周期
diff --git a/zh-cn/application-dev/reference/apis/js-apis-app-ability-errorManager.md b/zh-cn/application-dev/reference/apis/js-apis-app-ability-errorManager.md
index 428542aee3b5f66d0578ed32d27b8798e81cde0a..ccbcda32f617753bf6fadfcac532a04791f2f1ad 100644
--- a/zh-cn/application-dev/reference/apis/js-apis-app-ability-errorManager.md
+++ b/zh-cn/application-dev/reference/apis/js-apis-app-ability-errorManager.md
@@ -33,7 +33,7 @@ let observer = {
     onUnhandledException(errorMsg) {
         console.log('onUnhandledException, errorMsg: ', errorMsg)
     }
-}
+};
 try {
     errorManager.on('error', observer);
 } catch (paramError) {
@@ -106,7 +106,7 @@ try {
         })
         .catch((err) => {
             console.log('----------- unregisterErrorObserver fail ----------', err);
-    })
+    });
 } catch (paramError) {
     console.log('error: ' + paramError.code + ', ' + paramError.message);
 }
diff --git a/zh-cn/application-dev/reference/apis/js-apis-app-ability-missionManager.md b/zh-cn/application-dev/reference/apis/js-apis-app-ability-missionManager.md
index 2fc90276654d557447b8867f4a62b2c1f62e9790..9bc6061aaa3ac79a159bc7d09587d2c191e554c0 100755
--- a/zh-cn/application-dev/reference/apis/js-apis-app-ability-missionManager.md
+++ b/zh-cn/application-dev/reference/apis/js-apis-app-ability-missionManager.md
@@ -9,7 +9,7 @@ missionManager模块提供系统任务管理能力，包括对系统任务执行
 ## 导入模块
 
 ```ts
-import missionManager from '@ohos.app.ability.missionManager'
+import missionManager from '@ohos.app.ability.missionManager';
 ```
 
 ## 权限列表
@@ -51,7 +51,7 @@ on(type:'mission', listener: MissionListener): number;
       onMissionIconUpdated: function (mission, icon) {console.log('--------onMissionIconUpdated-------');},
       onMissionClosed: function (mission) {console.log('--------onMissionClosed-------');}
   };
-  console.log('registerMissionListener')
+  console.log('registerMissionListener');
   try {
     let listenerid = missionManager.on('mission', listener);
   } catch (paramError) {
@@ -90,13 +90,13 @@ off(type: 'mission', listenerId: number, callback: AsyncCallback<void>): v
       onMissionIconUpdated: function (mission, icon) {console.log('--------onMissionIconUpdated-------');},
       onMissionClosed: function (mission) {console.log('--------onMissionClosed-------');}
   };
-  console.log('registerMissionListener')
+  console.log('registerMissionListener');
   try {
     let listenerid = missionManager.registerMissionListener(listener);
 
     missionManager.unregisterMissionListener(listenerid, (error) => {
       console.log('unregisterMissionListener');
-    })
+    });
   } catch (paramError) {
     console.log('error: ' + paramError.code + ', ' + paramError.message);
   }
@@ -138,7 +138,7 @@ off(type: 'mission', listenerId: number): Promise<void>;
       onMissionIconUpdated: function (mission, icon) {console.log('--------onMissionIconUpdated-------');},
       onMissionClosed: function (mission) {console.log('--------onMissionClosed-------');}
   };
-  console.log('registerMissionListener')
+  console.log('registerMissionListener');
   try {
   let listenerid = missionManager.registerMissionListener(listener);
 
@@ -174,7 +174,7 @@ getMissionInfo(deviceId: string, missionId: number, callback: AsyncCallback<M
 **示例：**
 
   ```ts
-  import missionManager from '@ohos.app.ability.missionManager'
+  import missionManager from '@ohos.app.ability.missionManager';
 
   try {
     let allMissions=missionManager.getMissionInfos('',10).catch(function(err){console.log(err);});
@@ -221,7 +221,7 @@ getMissionInfo(deviceId: string, missionId: number): Promise<MissionInfo>;
 **示例：**
 
   ```ts
-  import missionManager from '@ohos.app.ability.missionManager'
+  import missionManager from '@ohos.app.ability.missionManager';
 
   try {
     let mission = missionManager.getMissionInfo('', 10).catch(function (err){
@@ -256,14 +256,14 @@ getMissionInfos(deviceId: string, numMax: number, callback: AsyncCallback<Arr
 **示例：**
 
   ```ts
-  import missionManager from '@ohos.app.ability.missionManager'
+  import missionManager from '@ohos.app.ability.missionManager';
 
   try {
     missionManager.getMissionInfos('', 10, (error, missions) => {
       console.log('getMissionInfos is called, error.code = ' + error.code);
       console.log('size = ' + missions.length);
       console.log('missions = ' + JSON.stringify(missions));
-    })
+    });
   } catch (paramError) {
     console.log('error: ' + paramError.code + ', ' + paramError.message);
   }
@@ -298,7 +298,7 @@ getMissionInfos(deviceId: string, numMax: number): Promise<Array<MissionIn
 **示例：**
 
   ```ts
-  import missionManager from '@ohos.app.ability.missionManager'
+  import missionManager from '@ohos.app.ability.missionManager';
 
   try {
     let allMissions = missionManager.getMissionInfos('', 10).catch(function (err){
@@ -333,7 +333,7 @@ getMissionSnapShot(deviceId: string, missionId: number, callback: AsyncCallback&
 **示例：**
 
   ```ts
-  import missionManager from '@ohos.app.ability.missionManager'
+  import missionManager from '@ohos.app.ability.missionManager';
 
   try {
     missionManager.getMissionInfos('', 10, (error, missions) => {
@@ -345,8 +345,8 @@ getMissionSnapShot(deviceId: string, missionId: number, callback: AsyncCallback&
       missionManager.getMissionSnapShot('', id, (error, snapshot) => {
   	    console.log('getMissionSnapShot is called, error.code = ' + error.code);
   	    console.log('bundleName = ' + snapshot.ability.bundleName);
-      })
-    })
+      });
+    });
   } catch (paramError) {
     console.log('error: ' + paramError.code + ', ' + paramError.message);
   }
@@ -435,8 +435,8 @@ getLowResolutionMissionSnapShot(deviceId: string, missionId: number, callback: A
       missionManager.getLowResolutionMissionSnapShot('', id, (error, snapshot) => {
   	    console.log('getLowResolutionMissionSnapShot is called, error.code = ' + error.code);
   	    console.log('bundleName = ' + snapshot.ability.bundleName);
-      })
-    })
+      });
+    });
   } catch (paramError) {
     console.log('error: ' + paramError.code + ', ' + paramError.message);
   }
diff --git a/zh-cn/application-dev/reference/apis/js-apis-app-ability-quickFixManager.md b/zh-cn/application-dev/reference/apis/js-apis-app-ability-quickFixManager.md
index e591625968c624a21693064438e5cd38d68416cb..8e6baca689e7b9372139ac113defc76c5c4106c8 100644
--- a/zh-cn/application-dev/reference/apis/js-apis-app-ability-quickFixManager.md
+++ b/zh-cn/application-dev/reference/apis/js-apis-app-ability-quickFixManager.md
@@ -77,7 +77,7 @@ applyQuickFix(hapModuleQuickFixFiles: Array\<string>, callback: AsyncCallback\<v
       } else {
           console.info( 'applyQuickFix success');
       }
-    })
+    });
   } catch (paramError) {
     console.log('error: ' + paramError.code + ', ' + paramError.message);
   }
@@ -118,7 +118,7 @@ applyQuickFix(hapModuleQuickFixFiles: Array\<string>): Promise\<void>;
       console.info('applyQuickFix success');
     }).catch((error) => {
       console.info(`applyQuickFix err: + ${error}`);
-    })
+    });
   } catch (paramError) {
     console.log('error: ' + paramError.code + ', ' + paramError.message);
   }
@@ -156,7 +156,7 @@ getApplicationQuickFixInfo(bundleName: string, callback: AsyncCallback\<Applicat
       } else {
         console.info(`getApplicationQuickFixInfo success: + ${data}`);
       }
-    })
+    });
   } catch (paramError) {
     console.log('error: ' + paramError.code + ', ' + paramError.message);
   }
@@ -197,7 +197,7 @@ getApplicationQuickFixInfo(bundleName: string): Promise\<ApplicationQuickFixInfo
       console.info(`getApplicationQuickFixInfo success: + ${data}`);
     }).catch((error) => {
       console.info(`getApplicationQuickFixInfo err: + ${error}`);
-    })
+    });
   } catch (paramError) {
     console.log('error: ' + paramError.code + ', ' + paramError.message);
   }
diff --git a/zh-cn/application-dev/reference/apis/js-apis-app-ability-want.md b/zh-cn/application-dev/reference/apis/js-apis-app-ability-want.md
index 410875922ba693173d32285fd98183838b43858c..a6c61824a2d9242b4e4a3a6a11c2b8721d0878ac 100644
--- a/zh-cn/application-dev/reference/apis/js-apis-app-ability-want.md
+++ b/zh-cn/application-dev/reference/apis/js-apis-app-ability-want.md
@@ -34,7 +34,7 @@ import Want from '@ohos.app.ability.Want';
 - 基础用法
 
   ```ts
-    var want = {
+    let want = {
         'deviceId': '', // deviceId为空表示本设备
         'bundleName': 'com.extreme.test',
         'abilityName': 'MainAbility',
@@ -110,13 +110,13 @@ import Want from '@ohos.app.ability.Want';
     * 文件描述符（FD）
         ```ts
             import fileio from '@ohos.fileio';
-            var fd;
+            let fd;
             try {
                 fd = fileio.openSync('/data/storage/el2/base/haps/pic.png');
             } catch(e) {
                 console.log('openSync fail:' + JSON.stringify(e));
             }
-            var want = {
+            let want = {
                 'deviceId': '', // deviceId为空表示本设备
                 'bundleName': 'com.extreme.test',
                 'abilityName': 'MainAbility',
diff --git a/zh-cn/application-dev/reference/apis/js-apis-app-ability-wantAgent.md b/zh-cn/application-dev/reference/apis/js-apis-app-ability-wantAgent.md
index 6624fda8cdd63cd8a0deaae67ea9e0fa9cbd86e6..d4b1353e8498b206114968465cd272248fda2c5a 100644
--- a/zh-cn/application-dev/reference/apis/js-apis-app-ability-wantAgent.md
+++ b/zh-cn/application-dev/reference/apis/js-apis-app-ability-wantAgent.md
@@ -37,7 +37,7 @@ function getWantAgentCallback(err, data) {
 	console.info('==========================>getWantAgentCallback=======================>');
 }
 //WantAgentInfo对象
-var wantAgentInfo = {
+let wantAgentInfo = {
     wants: [
         {
             deviceId: 'deviceId',
@@ -62,7 +62,7 @@ var wantAgentInfo = {
     operationType: WantAgent.OperationType.START_ABILITIES,
     requestCode: 0,
     wantAgentFlags:[WantAgent.WantAgentFlags.UPDATE_PRESENT_FLAG]
-}
+};
 
 try {
     WantAgent.getWantAgent(wantAgentInfo, getWantAgentCallback);
@@ -100,7 +100,7 @@ import WantAgent from '@ohos.app.ability.wantAgent';
 
 
 //WantAgentInfo对象
-var wantAgentInfo = {
+let wantAgentInfo = {
     wants: [
         {
             deviceId: 'deviceId',
@@ -160,7 +160,7 @@ import WantAgent from '@ohos.app.ability.wantAgent';
 
 
 //wantAgent对象
-var wantAgent;
+let wantAgent;
 
 //getWantAgent回调
 function getWantAgentCallback(err, data) {
@@ -172,7 +172,7 @@ function getWantAgentCallback(err, data) {
     }
 }
 //WantAgentInfo对象
-var wantAgentInfo = {
+let wantAgentInfo = {
     wants: [
         {
             deviceId: 'deviceId',
@@ -241,10 +241,10 @@ import WantAgent from '@ohos.app.ability.wantAgent';
 
 
 //wantAgent对象
-var wantAgent;
+let wantAgent;
 
 //WantAgentInfo对象
-var wantAgentInfo = {
+let wantAgentInfo = {
     wants: [
         {
             deviceId: 'deviceId',
@@ -309,7 +309,7 @@ import WantAgent from '@ohos.app.ability.wantAgent';
 
 
 //wantAgent对象
-var wantAgent;
+let wantAgent;
 
 //getWantAgent回调
 function getWantAgentCallback(err, data) {
@@ -321,7 +321,7 @@ function getWantAgentCallback(err, data) {
     }
 }
 //WantAgentInfo对象
-var wantAgentInfo = {
+let wantAgentInfo = {
     wants: [
         {
             deviceId: 'deviceId',
@@ -390,10 +390,10 @@ import WantAgent from '@ohos.app.ability.wantAgent';
 
 
 //wantAgent对象
-var wantAgent;
+let wantAgent;
 
 //WantAgentInfo对象
-var wantAgentInfo = {
+let wantAgentInfo = {
     wants: [
         {
             deviceId: 'deviceId',
@@ -460,7 +460,7 @@ import WantAgent from '@ohos.app.ability.wantAgent';
 
 
 //wantAgent对象
-var wantAgent;
+let wantAgent;
 
 //getWantAgent回调
 function getWantAgentCallback(err, data) {
@@ -472,7 +472,7 @@ function getWantAgentCallback(err, data) {
     }
 }
 //WantAgentInfo对象
-var wantAgentInfo = {
+let wantAgentInfo = {
     wants: [
         {
             deviceId: 'deviceId',
@@ -543,10 +543,10 @@ import WantAgent from '@ohos.app.ability.wantAgent';
 
 
 //wantAgent对象
-var wantAgent;
+let wantAgent;
 
 //WantAgentInfo对象
-var wantAgentInfo = {
+let wantAgentInfo = {
     wants: [
         {
             deviceId: 'deviceId',
@@ -611,7 +611,7 @@ import WantAgent from '@ohos.app.ability.wantAgent';
 
 
 //wantAgent对象
-var wantAgent;
+let wantAgent;
 
 //getWantAgent回调
 function getWantAgentCallback(err, data) {
@@ -623,7 +623,7 @@ function getWantAgentCallback(err, data) {
     }
 }
 //WantAgentInfo对象
-var wantAgentInfo = {
+let wantAgentInfo = {
     wants: [
         {
             deviceId: 'deviceId',
@@ -692,10 +692,10 @@ import WantAgent from '@ohos.app.ability.wantAgent';
 
 
 //wantAgent对象
-var wantAgent;
+let wantAgent;
 
 //WantAgentInfo对象
-var wantAgentInfo = {
+let wantAgentInfo = {
     wants: [
         {
             deviceId: 'deviceId',
@@ -761,7 +761,7 @@ import WantAgent from '@ohos.app.ability.wantAgent';
 
 
 //wantAgent对象
-var wantAgent;
+let wantAgent;
 
 //getWantAgent回调
 function getWantAgentCallback(err, data) {
@@ -773,7 +773,7 @@ function getWantAgentCallback(err, data) {
     }
 }
 //WantAgentInfo对象
-var wantAgentInfo = {
+let wantAgentInfo = {
     wants: [
         {
             deviceId: 'deviceId',
@@ -809,7 +809,7 @@ try {
     }
 
 
-    var triggerInfo = {
+    let triggerInfo = {
         code:0
     };
     WantAgent.trigger(wantAgent, triggerInfo, triggerCallback);
@@ -843,8 +843,8 @@ import WantAgent from '@ohos.app.ability.wantAgent';
 
 
 //wantAgent对象
-var wantAgent1;
-var wantAgent2;
+let wantAgent1;
+let wantAgent2;
 
 //getWantAgent回调
 function getWantAgentCallback(err, data) {
@@ -857,7 +857,7 @@ function getWantAgentCallback(err, data) {
     }
 }
 //WantAgentInfo对象
-var wantAgentInfo = {
+let wantAgentInfo = {
     wants: [
         {
             deviceId: 'deviceId',
@@ -927,11 +927,11 @@ import WantAgent from '@ohos.app.ability.wantAgent';
 
 
 //wantAgent对象
-var wantAgent1;
-var wantAgent2;
+let wantAgent1;
+let wantAgent2;
 
 //WantAgentInfo对象
-var wantAgentInfo = {
+let wantAgentInfo = {
     wants: [
         {
             deviceId: 'deviceId',
@@ -994,10 +994,10 @@ getOperationType(agent: WantAgent, callback: AsyncCallback\<number>): void;
 import WantAgent from '@ohos.app.ability.wantAgent';
 
 //wantAgent对象
-var wantAgent;
+let wantAgent;
 
 //WantAgentInfo对象
-var wantAgentInfo = {
+let wantAgentInfo = {
     wants: [
         {
             deviceId: 'deviceId',
@@ -1064,10 +1064,10 @@ getOperationType(agent: WantAgent): Promise\<number>;
 import WantAgent from '@ohos.app.ability.wantAgent';
 
 //wantAgent对象
-var wantAgent;
+let wantAgent;
 
 //WantAgentInfo对象
-var wantAgentInfo = {
+let wantAgentInfo = {
     wants: [
         {
             deviceId: 'deviceId',
diff --git a/zh-cn/application-dev/reference/apis/js-apis-application-abilityMonitor.md b/zh-cn/application-dev/reference/apis/js-apis-application-abilityMonitor.md
index f7ec50a17e5b39996bf50eeb73e3577afdc5e422..a82d89def7bbf23df0638f45d586afec77581b16 100644
--- a/zh-cn/application-dev/reference/apis/js-apis-application-abilityMonitor.md
+++ b/zh-cn/application-dev/reference/apis/js-apis-application-abilityMonitor.md
@@ -11,17 +11,17 @@ AbilityMonitor模块提供匹配满足指定条件的受监视能力对象的方
 通过abilityDelegator中的addAbilityMonitor来设置。
 
 ```js
-import AbilityDelegatorRegistry from '@ohos.application.abilityDelegatorRegistry'
-var abilityDelegator;
+import AbilityDelegatorRegistry from '@ohos.application.abilityDelegatorRegistry';
+let abilityDelegator;
 
 function onAbilityCreateCallback(data) {
     console.info("onAbilityCreateCallback");
 }
 
-var monitor = {
+let monitor = {
     abilityName: "abilityname",
     onAbilityCreate: onAbilityCreateCallback
-}
+};
 
 abilityDelegator = AbilityDelegatorRegistry.getAbilityDelegator();
 abilityDelegator.addAbilityMonitor(monitor, (err : any) => {
diff --git a/zh-cn/application-dev/reference/apis/js-apis-application-configuration.md b/zh-cn/application-dev/reference/apis/js-apis-application-configuration.md
index 35e87b3c830976d2e596c5a6a4b1446533c843a4..1cd9e6c9823db39b394c78f436f29908d2f3a154 100644
--- a/zh-cn/application-dev/reference/apis/js-apis-application-configuration.md
+++ b/zh-cn/application-dev/reference/apis/js-apis-application-configuration.md
@@ -18,7 +18,6 @@
 **示例：**
     
   ```ts
-import hilog from '@ohos.hilog';
 import Ability from '@ohos.application.Ability'
 import Window from '@ohos.window'
 
@@ -43,12 +42,10 @@ export default class MainAbility extends Ability {
 
         windowStage.loadContent('pages/index', (err, data) => {
             if (err.code) {
-                hilog.isLoggable(0x0000, 'testTag', hilog.LogLevel.ERROR);
-                hilog.error(0x0000, 'testTag', 'Failed to load the content. Cause: %{public}s', JSON.stringify(err) ?? '');
+                console.error('failed to load the content, error: + ${JSON.stringify(err)}');
                 return;
             }
-            hilog.isLoggable(0x0000, 'testTag', hilog.LogLevel.INFO);
-            hilog.info(0x0000, 'testTag', 'Succeeded in loading the content. Data: %{public}s', JSON.stringify(data) ?? '');
+            console.info('Succeeded in loading the content, data: + ${JSON.stringify(data)}');
         });
     }
 }
diff --git a/zh-cn/application-dev/reference/apis/js-apis-application-formHost.md b/zh-cn/application-dev/reference/apis/js-apis-application-formHost.md
index 466db099a179a3960bf4971192ba474016d5689b..6e7ff6562281915e78ce7aa4158a8f6d002d99d1 100644
--- a/zh-cn/application-dev/reference/apis/js-apis-application-formHost.md
+++ b/zh-cn/application-dev/reference/apis/js-apis-application-formHost.md
@@ -34,7 +34,7 @@ deleteForm(formId: string, callback: AsyncCallback&lt;void&gt;): void
 **示例：**
 
 ```ts
-var formId = '12400633174999288';
+let formId = '12400633174999288';
 formHost.deleteForm(formId, (error, data) => {
   if (error.code) {
     console.log('formHost deleteForm, error:' + JSON.stringify(error));
@@ -67,7 +67,7 @@ deleteForm(formId: string): Promise&lt;void&gt;
 **参数：**
 
 ```ts
-var formId = '12400633174999288';
+let formId = '12400633174999288';
 formHost.deleteForm(formId).then(() => {
   console.log('formHost deleteForm success');
 }).catch((error) => {
@@ -95,7 +95,7 @@ releaseForm(formId: string, callback: AsyncCallback&lt;void&gt;): void
 **示例：**
 
 ```ts
-var formId = '12400633174999288';
+let formId = '12400633174999288';
 formHost.releaseForm(formId, (error, data) => {
   if (error.code) {
     console.log('formHost releaseForm, error:' + JSON.stringify(error));
@@ -124,7 +124,7 @@ releaseForm(formId: string, isReleaseCache: boolean, callback: AsyncCallback&lt;
 **示例：**
 
 ```ts
-var formId = '12400633174999288';
+let formId = '12400633174999288';
 formHost.releaseForm(formId, true, (error, data) => {
   if (error.code) {
     console.log('formHost releaseForm, error:' + JSON.stringify(error));
@@ -158,7 +158,7 @@ releaseForm(formId: string, isReleaseCache?: boolean): Promise&lt;void&gt;
 **示例：**
 
 ```ts
-var formId = '12400633174999288';
+let formId = '12400633174999288';
 formHost.releaseForm(formId, true).then(() => {
   console.log('formHost releaseForm success');
 }).catch((error) => {
@@ -186,7 +186,7 @@ requestForm(formId: string, callback: AsyncCallback&lt;void&gt;): void
 **示例：**
 
 ```ts
-var formId = '12400633174999288';
+let formId = '12400633174999288';
 formHost.requestForm(formId, (error, data) => {
   if (error.code) {
     console.log('formHost requestForm, error:' + JSON.stringify(error));
@@ -219,7 +219,7 @@ requestForm(formId: string): Promise&lt;void&gt;
 **示例：**
 
 ```ts
-var formId = '12400633174999288';
+let formId = '12400633174999288';
 formHost.requestForm(formId).then(() => {
   console.log('formHost requestForm success');
 }).catch((error) => {
@@ -247,7 +247,7 @@ castTempForm(formId: string, callback: AsyncCallback&lt;void&gt;): void
 **示例：**
 
 ```ts
-var formId = '12400633174999288';
+let formId = '12400633174999288';
 formHost.castTempForm(formId, (error, data) => {
   if (error.code) {
     console.log('formHost castTempForm, error:' + JSON.stringify(error));
@@ -280,7 +280,7 @@ castTempForm(formId: string): Promise&lt;void&gt;
 **示例：**
 
 ```ts
-var formId = '12400633174999288';
+let formId = '12400633174999288';
 formHost.castTempForm(formId).then(() => {
   console.log('formHost castTempForm success');
 }).catch((error) => {
@@ -308,7 +308,7 @@ notifyVisibleForms(formIds: Array&lt;string&gt;, callback: AsyncCallback&lt;void
 **示例：**
 
 ```ts
-var formId = ['12400633174999288'];
+let formId = ['12400633174999288'];
 formHost.notifyVisibleForms(formId, (error, data) => {
   if (error.code) {
     console.log('formHost notifyVisibleForms, error:' + JSON.stringify(error));
@@ -341,7 +341,7 @@ notifyVisibleForms(formIds: Array&lt;string&gt;): Promise&lt;void&gt;
 **示例：**
 
 ```ts
-var formId = ['12400633174999288'];
+let formId = ['12400633174999288'];
 formHost.notifyVisibleForms(formId).then(() => {
   console.log('formHost notifyVisibleForms success');
 }).catch((error) => {
@@ -369,7 +369,7 @@ notifyInvisibleForms(formIds: Array&lt;string&gt;, callback: AsyncCallback&lt;vo
 **示例：**
 
 ```ts
-var formId = ['12400633174999288'];
+let formId = ['12400633174999288'];
 formHost.notifyInvisibleForms(formId, (error, data) => {
   if (error.code) {
     console.log('formHost notifyInvisibleForms, error:' + JSON.stringify(error));
@@ -402,7 +402,7 @@ notifyInvisibleForms(formIds: Array&lt;string&gt;): Promise&lt;void&gt;
 **示例：**
 
 ```ts
-var formId = ['12400633174999288'];
+let formId = ['12400633174999288'];
 formHost.notifyInvisibleForms(formId).then(() => {
   console.log('formHost notifyInvisibleForms success');
 }).catch((error) => {
@@ -430,7 +430,7 @@ enableFormsUpdate(formIds: Array&lt;string&gt;, callback: AsyncCallback&lt;void&
 **示例：**
 
 ```ts
-var formId = ['12400633174999288'];
+let formId = ['12400633174999288'];
 formHost.enableFormsUpdate(formId, (error, data) => {
   if (error.code) {
     console.log('formHost enableFormsUpdate, error:' + JSON.stringify(error));
@@ -463,7 +463,7 @@ enableFormsUpdate(formIds: Array&lt;string&gt;): Promise&lt;void&gt;
 **示例：**
 
 ```ts
-var formId = ['12400633174999288'];
+let formId = ['12400633174999288'];
 formHost.enableFormsUpdate(formId).then(() => {
   console.log('formHost enableFormsUpdate success');
 }).catch((error) => {
@@ -491,7 +491,7 @@ disableFormsUpdate(formIds: Array&lt;string&gt;, callback: AsyncCallback&lt;void
 **示例：**
 
 ```ts
-var formId = ['12400633174999288'];
+let formId = ['12400633174999288'];
 formHost.disableFormsUpdate(formId, (error, data) => {
   if (error.code) {
     console.log('formHost disableFormsUpdate, error:' + JSON.stringify(error));
@@ -524,7 +524,7 @@ disableFormsUpdate(formIds: Array&lt;string&gt;): Promise&lt;void&gt;
 **示例：**
 
 ```ts
-var formId = ['12400633174999288'];
+let formId = ['12400633174999288'];
 formHost.disableFormsUpdate(formId).then(() => {
   console.log('formHost disableFormsUpdate success');
 }).catch((error) => {
@@ -549,7 +549,7 @@ isSystemReady(callback: AsyncCallback&lt;void&gt;): void
 **示例：**
 
 ```ts
-var formId = '12400633174999288';
+let formId = '12400633174999288';
 formHost.isSystemReady((error, data) => {
   if (error.code) {
     console.log('formHost isSystemReady, error:' + JSON.stringify(error));
@@ -574,7 +574,7 @@ isSystemReady(): Promise&lt;void&gt;
 **示例：**
 
 ```ts
-var formId = '12400633174999288';
+let formId = '12400633174999288';
 formHost.isSystemReady().then(() => {
   console.log('formHost isSystemReady success');
 }).catch((error) => {
@@ -748,7 +748,7 @@ deleteInvalidForms(formIds: Array&lt;string&gt;, callback: AsyncCallback&lt;numb
 **示例：**
 
 ```ts
-var formIds = new Array('12400633174999288', '12400633174999289');
+let formIds = new Array('12400633174999288', '12400633174999289');
 formHost.deleteInvalidForms(formIds, (error, data) => {
   if (error.code) {
     console.log('formHost deleteInvalidForms, error:' + JSON.stringify(error));
@@ -783,7 +783,7 @@ deleteInvalidForms(formIds: Array&lt;string&gt;): Promise&lt;number&gt;
 **示例：**
 
 ```ts
-var formIds = new Array('12400633174999288', '12400633174999289');
+let formIds = new Array('12400633174999288', '12400633174999289');
 formHost.deleteInvalidForms(formIds).then((data) => {
   console.log('formHost deleteInvalidForms, data:' + JSON.stringify(data));
 }).catch((error) => {
@@ -811,7 +811,7 @@ acquireFormState(want: Want, callback: AsyncCallback&lt;formInfo.FormStateInfo&g
 **示例：**
 
 ```ts
-var want = {
+let want = {
   'deviceId': '',
   'bundleName': 'ohos.samples.FormApplication',
   'abilityName': 'FormAbility',
@@ -855,7 +855,7 @@ acquireFormState(want: Want): Promise&lt;formInfo.FormStateInfo&gt;
 **示例：**
 
 ```ts
-var want = {
+let want = {
   'deviceId': '',
   'bundleName': 'ohos.samples.FormApplication',
   'abilityName': 'FormAbility',
@@ -941,7 +941,7 @@ notifyFormsVisible(formIds: Array&lt;string&gt;, isVisible: boolean, callback: A
 **示例：**
 
 ```ts
-var formIds = new Array('12400633174999288', '12400633174999289');
+let formIds = new Array('12400633174999288', '12400633174999289');
 formHost.notifyFormsVisible(formIds, true, (error, data) => {
   if (error.code) {
     console.log('formHost notifyFormsVisible, error:' + JSON.stringify(error));
@@ -975,7 +975,7 @@ notifyFormsVisible(formIds: Array&lt;string&gt;, isVisible: boolean): Promise&lt
 **示例：**
 
 ```ts
-var formIds = new Array('12400633174999288', '12400633174999289');
+let formIds = new Array('12400633174999288', '12400633174999289');
 formHost.notifyFormsVisible(formIds, true).then(() => {
   console.log('formHost notifyFormsVisible success');
 }).catch((error) => {
@@ -1004,7 +1004,7 @@ notifyFormsEnableUpdate(formIds: Array&lt;string&gt;, isEnableUpdate: boolean, c
 **示例：**
 
 ```ts
-var formIds = new Array('12400633174999288', '12400633174999289');
+let formIds = new Array('12400633174999288', '12400633174999289');
 formHost.notifyFormsEnableUpdate(formIds, true, (error, data) => {
   if (error.code) {
     console.log('formHost notifyFormsEnableUpdate, error:' + JSON.stringify(error));
@@ -1038,7 +1038,7 @@ notifyFormsEnableUpdate(formIds: Array&lt;string&gt;, isEnableUpdate: boolean):
 **示例：**
 
 ```ts
-var formIds = new Array('12400633174999288', '12400633174999289');
+let formIds = new Array('12400633174999288', '12400633174999289');
 formHost.notifyFormsEnableUpdate(formIds, true).then(() => {
   console.log('formHost notifyFormsEnableUpdate success');
 }).catch((error) => {
@@ -1066,8 +1066,8 @@ shareForm(formId: string, deviceId: string, callback: AsyncCallback&lt;void&gt;)
 **示例：**
 
 ```ts
-var formId = '12400633174999288';
-var deviceId = 'EFC11C0C53628D8CC2F8CB5052477E130D075917034613B9884C55CD22B3DEF2';
+let formId = '12400633174999288';
+let deviceId = 'EFC11C0C53628D8CC2F8CB5052477E130D075917034613B9884C55CD22B3DEF2';
 formHost.shareForm(formId, deviceId, (error, data) => {
   if (error.code) {
     console.log('formHost shareForm, error:' + JSON.stringify(error));
@@ -1101,8 +1101,8 @@ shareForm(formId: string, deviceId: string): Promise&lt;void&gt;
 **参数：**
 
 ```ts
-var formId = '12400633174999288';
-var deviceId = 'EFC11C0C53628D8CC2F8CB5052477E130D075917034613B9884C55CD22B3DEF2';
+let formId = '12400633174999288';
+let deviceId = 'EFC11C0C53628D8CC2F8CB5052477E130D075917034613B9884C55CD22B3DEF2';
 formHost.shareForm(formId, deviceId).then(() => {
   console.log('formHost shareForm success');
 }).catch((error) => {
@@ -1126,7 +1126,7 @@ notifyFormsPrivacyProtected(formIds: Array\<string>, isProtected: boolean, callb
 | deviceId | string | 是   | 远程设备标识。 |
 
 ```ts
-var formIds = new Array('12400633174999288', '12400633174999289');
+let formIds = new Array('12400633174999288', '12400633174999289');
 formHost.notifyFormsPrivacyProtected(formIds, true).then(() => {
   console.log('formHost shareForm success');
 }).catch((error) => {
diff --git a/zh-cn/application-dev/reference/apis/js-apis-application-formProvider.md b/zh-cn/application-dev/reference/apis/js-apis-application-formProvider.md
index 20de7e5de0135fc1a975a17203e2aaf034b64602..c54edf9cbeac9dd5c60f9a24b46bfcfc4725341f 100644
--- a/zh-cn/application-dev/reference/apis/js-apis-application-formProvider.md
+++ b/zh-cn/application-dev/reference/apis/js-apis-application-formProvider.md
@@ -31,7 +31,7 @@ setFormNextRefreshTime(formId: string, minute: number, callback: AsyncCallback&l
 **示例：**
 
   ```ts
-  var formId = '12400633174999288';
+  let formId = '12400633174999288';
   formProvider.setFormNextRefreshTime(formId, 5, (error, data) => {
       if (error.code) {
           console.log('formProvider setFormNextRefreshTime, error:' + JSON.stringify(error));
@@ -63,7 +63,7 @@ setFormNextRefreshTime(formId: string, minute: number): Promise&lt;void&gt;
 **示例：**
 
   ```ts
-  var formId = '12400633174999288';
+  let formId = '12400633174999288';
   formProvider.setFormNextRefreshTime(formId, 5).then(() => {
       console.log('formProvider setFormNextRefreshTime success');
   }).catch((error) => {
@@ -91,7 +91,7 @@ updateForm(formId: string, formBindingData: formBindingData.FormBindingData,call
 
   ```ts
   import formBindingData from '@ohos.application.formBindingData';
-  var formId = '12400633174999288';
+  let formId = '12400633174999288';
   let obj = formBindingData.createFormBindingData({temperature:'22c', time:'22:00'});
   formProvider.updateForm(formId, obj, (error, data) => {
       if (error.code) {
@@ -125,7 +125,7 @@ updateForm(formId: string, formBindingData: formBindingData.FormBindingData): Pr
 
   ```ts
   import formBindingData from '@ohos.application.formBindingData';
-  var formId = '12400633174999288';
+  let formId = '12400633174999288';
   let obj = formBindingData.createFormBindingData({temperature:'22c', time:'22:00'});
   formProvider.updateForm(formId, obj).then(() => {
       console.log('formProvider updateForm success');
@@ -248,7 +248,7 @@ requestPublishForm(want: Want, formBindingData: formBindingData.FormBindingData,
 
   ```ts
   import formBindingData from '@ohos.application.formBindingData';
-  var want = {
+  let want = {
       abilityName: 'FormAbility',
       parameters: {
           'ohos.extra.param.key.form_dimension': 2,
@@ -286,7 +286,7 @@ requestPublishForm(want: Want, callback: AsyncCallback&lt;string&gt;): void
 **示例：**
 
   ```ts
-  var want = {
+  let want = {
       abilityName: 'FormAbility',
       parameters: {
           'ohos.extra.param.key.form_dimension': 2,
@@ -329,7 +329,7 @@ requestPublishForm(want: Want, formBindingData?: formBindingData.FormBindingData
 **示例：**
 
   ```ts
-  var want = {
+  let want = {
       abilityName: 'FormAbility',
       parameters: {
           'ohos.extra.param.key.form_dimension': 2,
@@ -368,7 +368,7 @@ formProvider.isRequestPublishFormSupported((error, isSupported) => {
     console.log('formProvider isRequestPublishFormSupported, error:' + JSON.stringify(error));
   } else {
     if (isSupported) {
-      var want = {
+      let want = {
       abilityName: 'FormAbility',
       parameters: {
         'ohos.extra.param.key.form_dimension': 2,
@@ -409,7 +409,7 @@ isRequestPublishFormSupported(): Promise&lt;boolean&gt;
 ```ts
 formProvider.isRequestPublishFormSupported().then((isSupported) => {
   if (isSupported) {
-    var want = {
+    let want = {
     abilityName: 'FormAbility',
     parameters: {
         'ohos.extra.param.key.form_dimension': 2,
diff --git a/zh-cn/application-dev/reference/apis/js-apis-application-want.md b/zh-cn/application-dev/reference/apis/js-apis-application-want.md
index 7845337de12dfe49d9a609946c703c1479dedf56..160be5faaec320ab9a11dd7069a81c24045b3e72 100644
--- a/zh-cn/application-dev/reference/apis/js-apis-application-want.md
+++ b/zh-cn/application-dev/reference/apis/js-apis-application-want.md
@@ -34,7 +34,7 @@ import Want from '@ohos.application.Want';
 - 基础用法
 
   ```ts
-    var want = {
+    let want = {
         'deviceId': '', // deviceId为空表示本设备
         'bundleName': 'com.extreme.test',
         'abilityName': 'MainAbility',
@@ -110,13 +110,13 @@ import Want from '@ohos.application.Want';
     * 文件描述符（FD）
         ```ts
             import fileio from '@ohos.fileio';
-            var fd;
+            let fd;
             try {
                 fd = fileio.openSync('/data/storage/el2/base/haps/pic.png');
             } catch(e) {
                 console.log('openSync fail:' + JSON.stringify(e));
             }
-            var want = {
+            let want = {
                 'deviceId': '', // deviceId为空表示本设备
                 'bundleName': 'com.extreme.test',
                 'abilityName': 'MainAbility',
diff --git a/zh-cn/application-dev/reference/apis/js-apis-application-windowExtensionAbility.md b/zh-cn/application-dev/reference/apis/js-apis-application-windowExtensionAbility.md
index c72ee14937e8719a9a39ede4f6982ceb4922fd43..5e61171ba227680c6ba2eeb15bbf5e3af8d3d893 100644
--- a/zh-cn/application-dev/reference/apis/js-apis-application-windowExtensionAbility.md
+++ b/zh-cn/application-dev/reference/apis/js-apis-application-windowExtensionAbility.md
@@ -101,9 +101,9 @@ export default class MyWindowExtensionAbility extends WindowExtensionAbility {
     window.loadContent('WindowExtAbility/pages/index1').then(() => {
       window.getProperties().then((pro) => {
         console.log('WindowExtension ' + JSON.stringify(pro));
-      })
+      });
       window.show();
-    })
+    });
   }
 
 }
diff --git a/zh-cn/application-dev/reference/apis/js-apis-inner-application-abilityDelegator.md b/zh-cn/application-dev/reference/apis/js-apis-inner-application-abilityDelegator.md
index a67ca15d48554775698d7a7fc98c4caf622cc985..9c12b9faa80b4e8e8c26075078c891679bc406dc 100644
--- a/zh-cn/application-dev/reference/apis/js-apis-inner-application-abilityDelegator.md
+++ b/zh-cn/application-dev/reference/apis/js-apis-inner-application-abilityDelegator.md
@@ -35,13 +35,13 @@ addAbilityMonitor(monitor: AbilityMonitor, callback: AsyncCallback\<void>): void
 **示例：**
 
 ```ts
-var abilityDelegator;
+let abilityDelegator;
 
 function onAbilityCreateCallback(data) {
     console.info('onAbilityCreateCallback');
 }
 
-var monitor = {
+let monitor = {
     abilityName: 'abilityname',
     onAbilityCreate: onAbilityCreateCallback
 };
@@ -75,13 +75,13 @@ addAbilityMonitor(monitor: AbilityMonitor): Promise\<void>;
 **示例：**
 
 ```ts
-var abilityDelegator;
+let abilityDelegator;
 
 function onAbilityCreateCallback(data) {
     console.info('onAbilityCreateCallback');
 }
 
-var monitor = {
+let monitor = {
     abilityName: 'abilityname',
     onAbilityCreate: onAbilityCreateCallback
 };
@@ -112,13 +112,13 @@ removeAbilityMonitor(monitor: AbilityMonitor, callback: AsyncCallback\<void>): v
 **示例：**
 
 ```ts
-var abilityDelegator;
+let abilityDelegator;
 
 function onAbilityCreateCallback(data) {
     console.info('onAbilityCreateCallback');
 }
 
-var monitor = {
+let monitor = {
     abilityName: 'abilityname',
     onAbilityCreate: onAbilityCreateCallback
 };
@@ -154,13 +154,13 @@ removeAbilityMonitor(monitor: AbilityMonitor): Promise\<void>;
 - 示例
 
 ```ts
-var abilityDelegator;
+let abilityDelegator;
 
 function onAbilityCreateCallback(data) {
     console.info('onAbilityCreateCallback');
 }
 
-var monitor = {
+let monitor = {
     abilityName: 'abilityname',
     onAbilityCreate: onAbilityCreateCallback
 };
@@ -191,13 +191,13 @@ waitAbilityMonitor(monitor: AbilityMonitor, callback: AsyncCallback\<UIAbility>)
 **示例：**
 
 ```ts
-var abilityDelegator;
+let abilityDelegator;
 
 function onAbilityCreateCallback(data) {
     console.info('onAbilityCreateCallback');
 }
 
-var monitor = {
+let monitor = {
     abilityName: 'abilityname',
     onAbilityCreate: onAbilityCreateCallback
 };
@@ -227,14 +227,14 @@ waitAbilityMonitor(monitor: AbilityMonitor, timeout: number, callback: AsyncCall
 **示例：**
 
 ```ts
-var abilityDelegator;
-var timeout = 100;
+let abilityDelegator;
+let timeout = 100;
 
 function onAbilityCreateCallback(data) {
     console.info('onAbilityCreateCallback');
 }
 
-var monitor = {
+let monitor = {
     abilityName: 'abilityname',
     onAbilityCreate: onAbilityCreateCallback
 };
@@ -271,13 +271,13 @@ waitAbilityMonitor(monitor: AbilityMonitor, timeout?: number): Promise\<UIAbilit
 **示例：**
 
 ```ts
-var abilityDelegator;
+let abilityDelegator;
 
 function onAbilityCreateCallback(data) {
     console.info('onAbilityCreateCallback');
 }
 
-var monitor = {
+let monitor = {
     abilityName: 'abilityname',
     onAbilityCreate: onAbilityCreateCallback
 };
@@ -307,10 +307,10 @@ getAppContext(): Context;
 **示例：**
 
 ```ts
-var abilityDelegator;
+let abilityDelegator;
 
 abilityDelegator = AbilityDelegatorRegistry.getAbilityDelegator();
-var context = abilityDelegator.getAppContext();
+let context = abilityDelegator.getAppContext();
 ```
 
 
@@ -338,14 +338,14 @@ getAbilityState(ability: UIAbility): number;
 **示例：**
 
 ```ts
-var abilityDelegator;
-var ability;
+let abilityDelegator;
+let ability;
 
 abilityDelegator = AbilityDelegatorRegistry.getAbilityDelegator();
 abilityDelegator.getCurrentTopAbility((err : any, data : any) => {
     console.info('getCurrentTopAbility callback');
     ability = data;
-    var state = abilityDelegator.getAbilityState(ability);
+    let state = abilityDelegator.getAbilityState(ability);
     console.info('getAbilityState' + state);
 });
 ```
@@ -369,8 +369,8 @@ getCurrentTopAbility(callback: AsyncCallback\<UIAbility>): void;
 **示例：**
 
 ```ts
-var abilityDelegator;
-var ability;
+let abilityDelegator;
+let ability;
 
 abilityDelegator = AbilityDelegatorRegistry.getAbilityDelegator();
 abilityDelegator.getCurrentTopAbility((err : any, data : any) => {
@@ -398,8 +398,8 @@ getCurrentTopAbility(): Promise\<UIAbility>;
 **示例：**
 
 ```ts
-var abilityDelegator;
-var ability;
+let abilityDelegator;
+let ability;
 
 abilityDelegator = AbilityDelegatorRegistry.getAbilityDelegator();
 abilityDelegator.getCurrentTopAbility().then((data : any) => {
@@ -428,8 +428,8 @@ startAbility(want: Want, callback: AsyncCallback\<void>): void;
 **示例：**
 
 ```ts
-var abilityDelegator;
-var want = {
+let abilityDelegator;
+let want = {
     bundleName: 'bundleName',
     abilityName: 'abilityName'
 };
@@ -465,8 +465,8 @@ startAbility(want: Want): Promise\<void>;
 **示例：**
 
 ```ts
-var abilityDelegator;
-var want = {
+let abilityDelegator;
+let want = {
     bundleName: 'bundleName',
     abilityName: 'abilityName'
 };
@@ -497,8 +497,8 @@ doAbilityForeground(ability: UIAbility, callback: AsyncCallback\<void>): void;
 **示例：**
 
 ```ts
-var abilityDelegator;
-var ability;
+let abilityDelegator;
+let ability;
 
 abilityDelegator = AbilityDelegatorRegistry.getAbilityDelegator();
 abilityDelegator.getCurrentTopAbility((err : any, data : any) => {
@@ -535,8 +535,8 @@ doAbilityForeground(ability: UIAbility): Promise\<void>;
 **示例：**
 
 ```ts
-var abilityDelegator;
-var ability;
+let abilityDelegator;
+let ability;
 
 abilityDelegator = AbilityDelegatorRegistry.getAbilityDelegator();
 abilityDelegator.getCurrentTopAbility((err : any, data : any) => {
@@ -568,8 +568,8 @@ doAbilityBackground(ability: UIAbility, callback: AsyncCallback\<void>): void;
 **示例：**
 
 ```ts
-var abilityDelegator;
-var ability;
+let abilityDelegator;
+let ability;
 
 abilityDelegator = AbilityDelegatorRegistry.getAbilityDelegator();
 abilityDelegator.getCurrentTopAbility((err : any, data : any) => {
@@ -606,8 +606,8 @@ doAbilityBackground(ability: UIAbility): Promise\<void>;
 **示例：**
 
 ```ts
-var abilityDelegator;
-var ability;
+let abilityDelegator;
+let ability;
 
 abilityDelegator = AbilityDelegatorRegistry.getAbilityDelegator();
 abilityDelegator.getCurrentTopAbility((err : any, data : any) => {
@@ -638,8 +638,8 @@ printSync(msg: string): void;
 **示例：**
 
 ```ts
-var abilityDelegator;
-var msg = 'msg';
+let abilityDelegator;
+let msg = 'msg';
 
 abilityDelegator = AbilityDelegatorRegistry.getAbilityDelegator();
 abilityDelegator.printSync(msg);
@@ -665,8 +665,8 @@ print(msg: string, callback: AsyncCallback\<void>): void;
 **示例：**
 
 ```ts
-var abilityDelegator;
-var msg = 'msg';
+let abilityDelegator;
+let msg = 'msg';
 
 abilityDelegator = AbilityDelegatorRegistry.getAbilityDelegator();
 abilityDelegator.print(msg, (err : any) => {
@@ -699,8 +699,8 @@ print(msg: string): Promise\<void>;
 **示例：**
 
 ```ts
-var abilityDelegator;
-var msg = 'msg';
+let abilityDelegator;
+let msg = 'msg';
 
 abilityDelegator = AbilityDelegatorRegistry.getAbilityDelegator();
 abilityDelegator.print(msg).then(() => {
@@ -728,8 +728,8 @@ executeShellCommand(cmd: string, callback: AsyncCallback\<ShellCmdResult>): void
 **示例：**
 
 ```ts
-var abilityDelegator;
-var cmd = 'cmd';
+let abilityDelegator;
+let cmd = 'cmd';
 
 abilityDelegator = AbilityDelegatorRegistry.getAbilityDelegator();
 abilityDelegator.executeShellCommand(cmd, (err : any, data : any) => {
@@ -758,9 +758,9 @@ executeShellCommand(cmd: string, timeoutSecs: number, callback: AsyncCallback\<S
 **示例：**
 
 ```ts
-var abilityDelegator;
-var cmd = 'cmd';
-var timeout = 100;
+let abilityDelegator;
+let cmd = 'cmd';
+let timeout = 100;
 
 abilityDelegator = AbilityDelegatorRegistry.getAbilityDelegator();
 abilityDelegator.executeShellCommand(cmd, timeout, (err : any, data : any) => {
@@ -794,9 +794,9 @@ executeShellCommand(cmd: string, timeoutSecs?: number): Promise\<ShellCmdResult>
 **示例：**
 
 ```ts
-var abilityDelegator;
-var cmd = 'cmd';
-var timeout = 100;
+let abilityDelegator;
+let cmd = 'cmd';
+let timeout = 100;
 
 abilityDelegator = AbilityDelegatorRegistry.getAbilityDelegator();
 abilityDelegator.executeShellCommand(cmd, timeout).then((data : any) => {
@@ -825,8 +825,8 @@ finishTest(msg: string, code: number, callback: AsyncCallback\<void>): void;
 **示例：**
 
 ```ts
-var abilityDelegator;
-var msg = 'msg';
+let abilityDelegator;
+let msg = 'msg';
 
 abilityDelegator = AbilityDelegatorRegistry.getAbilityDelegator();
 abilityDelegator.finishTest(msg, 0, (err : any) => {
@@ -860,8 +860,8 @@ finishTest(msg: string, code: number): Promise\<void>;
 **示例：**
 
 ```ts
-var abilityDelegator;
-var msg = 'msg';
+let abilityDelegator;
+let msg = 'msg';
 
 abilityDelegator = AbilityDelegatorRegistry.getAbilityDelegator();
 abilityDelegator.finishTest(msg, 0).then(() => {
@@ -887,9 +887,9 @@ addAbilityStageMonitor(monitor: AbilityStageMonitor, callback: AsyncCallback\<vo
 **示例：**
 
 ```ts
-var abilityDelegator;
+let abilityDelegator;
 
-var monitor = {
+let monitor = {
     moduleName: 'moduleName',
     srcEntrance: 'srcEntrance',
 };
@@ -925,9 +925,9 @@ addAbilityStageMonitor(monitor: AbilityStageMonitor): Promise\<void>;
 **示例：**
 
 ```ts
-var abilityDelegator;
+let abilityDelegator;
 
-var monitor = {
+let monitor = {
     moduleName: 'moduleName',
     srcEntrance: 'srcEntrance',
 };
@@ -956,9 +956,9 @@ removeAbilityStageMonitor(monitor: AbilityStageMonitor, callback: AsyncCallback\
 **示例：**
 
 ```ts
-var abilityDelegator;
+let abilityDelegator;
 
-var monitor = {
+let monitor = {
     moduleName: 'moduleName',
     srcEntrance: 'srcEntrance',
 };
@@ -994,9 +994,9 @@ removeAbilityStageMonitor(monitor: AbilityStageMonitor): Promise\<void>;
 **示例：**
 
 ```ts
-var abilityDelegator;
+let abilityDelegator;
 
-var monitor = {
+let monitor = {
     moduleName: 'moduleName',
     srcEntrance: 'srcEntrance',
 };
@@ -1025,13 +1025,13 @@ waitAbilityStageMonitor(monitor: AbilityStageMonitor, callback: AsyncCallback\<A
 **示例：**
 
 ```ts
-var abilityDelegator;
+let abilityDelegator;
 
 function onAbilityCreateCallback(data) {
     console.info('onAbilityCreateCallback');
 }
 
-var monitor = {
+let monitor = {
     moduleName: 'moduleName',
     srcEntrance: 'srcEntrance',
 };
@@ -1066,13 +1066,13 @@ waitAbilityStageMonitor(monitor: AbilityStageMonitor, timeout?: number): Promise
 **示例：**
 
 ```ts
-var abilityDelegator;
+let abilityDelegator;
 
 function onAbilityCreateCallback(data) {
     console.info('onAbilityCreateCallback');
 }
 
-var monitor = {
+let monitor = {
     moduleName: 'moduleName',
     srcEntrance: 'srcEntrance',
 };
@@ -1102,14 +1102,14 @@ waitAbilityStageMonitor(monitor: AbilityStageMonitor, timeout: number, callback:
 **示例：**
 
 ```ts
-var abilityDelegator;
-var timeout = 100;
+let abilityDelegator;
+let timeout = 100;
 
 function onAbilityCreateCallback(data) {
     console.info('onAbilityCreateCallback');
 }
 
-var monitor = {
+let monitor = {
     moduleName: 'moduleName',
     srcEntrance: 'srcEntrance',
 };
diff --git a/zh-cn/application-dev/reference/apis/js-apis-inner-application-formExtensionContext.md b/zh-cn/application-dev/reference/apis/js-apis-inner-application-formExtensionContext.md
index 01b493932c9722be3c696a4be40325a0f06fba4e..d219a4f704ed026e5f806112c4bd03f0a4e0a868 100644
--- a/zh-cn/application-dev/reference/apis/js-apis-inner-application-formExtensionContext.md
+++ b/zh-cn/application-dev/reference/apis/js-apis-inner-application-formExtensionContext.md
@@ -50,7 +50,7 @@ startAbility(want: Want, callback: AsyncCallback&lt;void&gt;): void
 **示例：**
 
 ```ts
-var want = {
+let want = {
     deviceId: '',
     bundleName: 'com.example.formstartability',
     abilityName: 'MainAbility',
@@ -94,7 +94,7 @@ startAbility(want: Want): Promise&lt;void&gt;
 **示例：**
 
 ```ts
-var want = {
+let want = {
     deviceId: '',
     bundleName: 'com.example.formstartability',
     abilityName: 'MainAbility',
diff --git a/zh-cn/application-dev/reference/apis/js-apis-inner-application-processData.md b/zh-cn/application-dev/reference/apis/js-apis-inner-application-processData.md
index 67c5ea0ea220addb82b5756641f331731a78bacd..f638be6bd2cb8de847727888359b120570176544 100644
--- a/zh-cn/application-dev/reference/apis/js-apis-inner-application-processData.md
+++ b/zh-cn/application-dev/reference/apis/js-apis-inner-application-processData.md
@@ -16,7 +16,7 @@
 
 **示例：**
 ```ts
-import appManager from '@ohos.application.appManager'
+import appManager from '@ohos.application.appManager';
 
 let applicationStateObserver = {
     onForegroundApplicationChanged(appStateData) {
@@ -38,6 +38,6 @@ let applicationStateObserver = {
         console.log('onProcessStateChanged processData.isContinuousTask : ' +  JSON.stringify(processData.isContinuousTask));
         console.log('onProcessStateChanged processData.isKeepAlive : ' +  JSON.stringify(processData.isKeepAlive));
     }
-}
+};
 let observerCode = appManager.registerApplicationStateObserver(applicationStateObserver);
 ```
\ No newline at end of file
diff --git a/zh-cn/application-dev/reference/apis/js-apis-inner-application-uiAbilityContext.md b/zh-cn/application-dev/reference/apis/js-apis-inner-application-uiAbilityContext.md
index c37cbb66ec4c8c2c06ec13b741547960f7b60683..8b2562b2e0886dcec2239ef0c5727c15c9cf1e01 100644
--- a/zh-cn/application-dev/reference/apis/js-apis-inner-application-uiAbilityContext.md
+++ b/zh-cn/application-dev/reference/apis/js-apis-inner-application-uiAbilityContext.md
@@ -66,7 +66,7 @@ startAbility(want: Want, callback: AsyncCallback&lt;void&gt;): void;
 **示例：**
 
   ```ts
-  var want = {
+  let want = {
     bundleName: 'com.example.myapp',
     abilityName: 'MyAbility'
   };
@@ -138,12 +138,12 @@ startAbility(want: Want, options: StartOptions, callback: AsyncCallback&lt;void&
 **示例：**
 
   ```ts
-  var want = {
+  let want = {
     deviceId: '',
     bundleName: 'com.extreme.test',
     abilityName: 'MainAbility'
   };
-  var options = {
+  let options = {
     windowMode: 0
   };
 
@@ -218,11 +218,11 @@ startAbility(want: Want, options?: StartOptions): Promise&lt;void&gt;;
 **示例：**
 
   ```ts
-  var want = {
+  let want = {
     bundleName: 'com.example.myapp',
     abilityName: 'MyAbility'
   };
-  var options = {
+  let options = {
   	windowMode: 0,
   };
 
@@ -295,7 +295,7 @@ startAbilityForResult(want: Want, callback: AsyncCallback&lt;AbilityResult&gt;):
 **示例：**
 
   ```ts
-  var want = {
+  let want = {
     deviceId: '',
     bundleName: 'com.extreme.test',
     abilityName: 'MainAbility'
@@ -371,12 +371,12 @@ startAbilityForResult(want: Want, options: StartOptions, callback: AsyncCallback
 **示例：**
 
   ```ts
-  var want = {
+  let want = {
     deviceId: '',
     bundleName: 'com.extreme.test',
     abilityName: 'MainAbility'
   };
-  var options = {
+  let options = {
     windowMode: 0,
   };
 
@@ -457,11 +457,11 @@ startAbilityForResult(want: Want, options?: StartOptions): Promise&lt;AbilityRes
 **示例：**
 
   ```ts
-  var want = {
+  let want = {
     bundleName: 'com.example.myapp',
     abilityName: 'MyAbility'
   };
-  var options = {
+  let options = {
   	windowMode: 0,
   };
 
@@ -531,12 +531,12 @@ startAbilityForResultWithAccount(want: Want, accountId: number, callback: AsyncC
 **示例：**
 
   ```ts
-  var want = {
+  let want = {
     deviceId: '',
     bundleName: 'com.extreme.test',
     abilityName: 'MainAbility'
   };
-  var accountId = 100;
+  let accountId = 100;
 
   try {
     this.context.startAbilityForResultWithAccount(want, accountId, (error, result) => {
@@ -607,13 +607,13 @@ startAbilityForResultWithAccount(want: Want, accountId: number, options: StartOp
 **示例：**
 
   ```ts
-  var want = {
+  let want = {
     deviceId: '',
     bundleName: 'com.extreme.test',
     abilityName: 'MainAbility'
   };
-  var accountId = 100;
-  var options = {
+  let accountId = 100;
+  let options = {
     windowMode: 0
   };
 
@@ -691,13 +691,13 @@ startAbilityForResultWithAccount(want: Want, accountId: number, options?: StartO
 **示例：**
 
   ```ts
-  var want = {
+  let want = {
     deviceId: '',
     bundleName: 'com.extreme.test',
     abilityName: 'MainAbility'
   };
-  var accountId = 100;
-  var options = {
+  let accountId = 100;
+  let options = {
     windowMode: 0
   };
 
@@ -756,7 +756,7 @@ startServiceExtensionAbility(want: Want, callback: AsyncCallback\<void>): void;
 **示例：**
 
   ```ts
-  var want = {
+  let want = {
     deviceId: '',
     bundleName: 'com.extreme.test',
     abilityName: 'MainAbility'
@@ -816,7 +816,7 @@ startServiceExtensionAbility(want: Want): Promise\<void>;
 **示例：**
 
   ```ts
-  var want = {
+  let want = {
     deviceId: '',
     bundleName: 'com.extreme.test',
     abilityName: 'MainAbility'
@@ -877,12 +877,12 @@ startServiceExtensionAbilityWithAccount(want: Want, accountId: number, callback:
 **示例：**
 
   ```ts
-  var want = {
+  let want = {
     deviceId: '',
     bundleName: 'com.extreme.test',
     abilityName: 'MainAbility'
   };
-  var accountId = 100;
+  let accountId = 100;
 
   try {
     this.context.startServiceExtensionAbilityWithAccount(want, accountId, (error) => {
@@ -942,12 +942,12 @@ startServiceExtensionAbilityWithAccount(want: Want, accountId: number): Promise\
 **示例：**
 
   ```ts
-  var want = {
+  let want = {
     deviceId: '',
     bundleName: 'com.extreme.test',
     abilityName: 'MainAbility'
   };
-  var accountId = 100;
+  let accountId = 100;
 
   try {
     this.context.startServiceExtensionAbilityWithAccount(want, accountId)
@@ -1000,7 +1000,7 @@ stopServiceExtensionAbility(want: Want, callback: AsyncCallback\<void>): void;
 **示例：**
 
   ```ts
-  var want = {
+  let want = {
     deviceId: '',
     bundleName: 'com.extreme.test',
     abilityName: 'MainAbility'
@@ -1057,7 +1057,7 @@ stopServiceExtensionAbility(want: Want): Promise\<void>;
 **示例：**
 
   ```ts
-  var want = {
+  let want = {
     deviceId: '',
     bundleName: 'com.extreme.test',
     abilityName: 'MainAbility'
@@ -1119,12 +1119,12 @@ stopServiceExtensionAbilityWithAccount(want: Want, accountId: number, callback:
 **示例：**
 
   ```ts
-  var want = {
+  let want = {
     deviceId: '',
     bundleName: 'com.extreme.test',
     abilityName: 'MainAbility'
   };
-  var accountId = 100;
+  let accountId = 100;
 
   try {
     this.context.stopServiceExtensionAbilityWithAccount(want, accountId, (error) => {
@@ -1181,12 +1181,12 @@ stopServiceExtensionAbilityWithAccount(want: Want, accountId: number): Promise\<
 **示例：**
 
   ```ts
-  var want = {
+  let want = {
     deviceId: '',
     bundleName: 'com.extreme.test',
     abilityName: 'MainAbility'
   };
-  var accountId = 100;
+  let accountId = 100;
 
   try {
     this.context.stopServiceExtensionAbilityWithAccount(want, accountId)
@@ -1315,13 +1315,13 @@ terminateSelfWithResult(parameter: AbilityResult, callback: AsyncCallback&lt;voi
 **示例：**
 
   ```ts
-  var want = {
+  let want = {
     bundleName: 'com.extreme.myapplication',
     abilityName: 'SecondAbility'
   }
-  var resultCode = 100;
+  let resultCode = 100;
   // 返回给接口调用方AbilityResult信息
-  var abilityResult = {
+  let abilityResult = {
     want,
     resultCode
   }
@@ -1380,13 +1380,13 @@ terminateSelfWithResult(parameter: AbilityResult): Promise&lt;void&gt;;
 **示例：**
 
   ```ts
-  var want = {
+  let want = {
     bundleName: 'com.extreme.myapplication',
     abilityName: 'SecondAbility'
   }
-  var resultCode = 100;
+  let resultCode = 100;
   // 返回给接口调用方AbilityResult信息
-  var abilityResult = {
+  let abilityResult = {
     want,
     resultCode
   }
@@ -1445,18 +1445,18 @@ connectServiceExtensionAbility(want: Want, options: ConnectOptions): number;
 **示例：**
 
   ```ts
-  var want = {
+  let want = {
     deviceId: '',
     bundleName: 'com.extreme.test',
     abilityName: 'MainAbility'
   };
-  var options = {
+  let options = {
     onConnect(elementName, remote) { console.log('----------- onConnect -----------') },
     onDisconnect(elementName) { console.log('----------- onDisconnect -----------') },
     onFailed(code) { console.log('----------- onFailed -----------') }
   }
 
-  var connection = null;
+  let connection = null;
   try {
     connection = this.context.connectServiceExtensionAbility(want, options);
   } catch (paramError) {
@@ -1509,19 +1509,19 @@ connectServiceExtensionAbilityWithAccount(want: Want, accountId: number, options
 **示例：**
 
   ```ts
-  var want = {
+  let want = {
     deviceId: '',
     bundleName: 'com.extreme.test',
     abilityName: 'MainAbility'
   };
-  var accountId = 100;
-  var options = {
+  let accountId = 100;
+  let options = {
     onConnect(elementName, remote) { console.log('----------- onConnect -----------') },
     onDisconnect(elementName) { console.log('----------- onDisconnect -----------') },
     onFailed(code) { console.log('----------- onFailed -----------') }
   }
 
-  var connection = null;
+  let connection = null;
   try {
     connection = this.context.connectServiceExtensionAbilityWithAccount(want, accountId, options);
   } catch (paramError) {
@@ -1568,7 +1568,7 @@ disconnectServiceExtensionAbility(connection: number): Promise\<void>;
 
   ```ts
   // connection为connectServiceExtensionAbility中的返回值
-  var connection = 1;
+  let connection = 1;
 
   try {
     this.context.disconnectServiceExtensionAbility(connection)
@@ -1620,7 +1620,7 @@ disconnectServiceExtensionAbility(connection: number, callback:AsyncCallback\<vo
 
   ```ts
   // connection为connectServiceExtensionAbility中的返回值
-  var connection = 1;
+  let connection = 1;
 
   try {
     this.context.disconnectServiceExtensionAbility(connection, (error) => {
@@ -1670,10 +1670,10 @@ startAbilityByCall(want: Want): Promise&lt;Caller&gt;;
   后台启动：
 
   ```ts
-  var caller = undefined;
+  let caller = undefined;
 
   // 后台启动Ability，不配置parameters
-  var wantBackground = {
+  let wantBackground = {
       bundleName: 'com.example.myservice',
       moduleName: 'entry',
       abilityName: 'MainAbility',
@@ -1701,10 +1701,10 @@ startAbilityByCall(want: Want): Promise&lt;Caller&gt;;
   前台启动：
 
   ```ts
-  var caller = undefined;
+  let caller = undefined;
 
   // 前台启动Ability，将parameters中的'ohos.aafwk.param.callAbilityToForeground'配置为true
-  var wantForeground = {
+  let wantForeground = {
       bundleName: 'com.example.myservice',
       moduleName: 'entry',
       abilityName: 'MainAbility',
@@ -1780,12 +1780,12 @@ startAbilityWithAccount(want: Want, accountId: number, callback: AsyncCallback\<
 **示例：**
 
   ```ts
-  var want = {
+  let want = {
     deviceId: '',
     bundleName: 'com.extreme.test',
     abilityName: 'MainAbility'
   };
-  var accountId = 100;
+  let accountId = 100;
 
   try {
     this.context.startAbilityWithAccount(want, accountId, (error) => {
@@ -1855,13 +1855,13 @@ startAbilityWithAccount(want: Want, accountId: number, options: StartOptions, ca
 **示例：**
 
   ```ts
-  var want = {
+  let want = {
     deviceId: '',
     bundleName: 'com.extreme.test',
     abilityName: 'MainAbility'
   };
-  var accountId = 100;
-  var options = {
+  let accountId = 100;
+  let options = {
     windowMode: 0
   };
 
@@ -1932,13 +1932,13 @@ startAbilityWithAccount(want: Want, accountId: number, options?: StartOptions):
 **示例：**
 
   ```ts
-  var want = {
+  let want = {
     deviceId: '',
     bundleName: 'com.extreme.test',
     abilityName: 'MainAbility'
   };
-  var accountId = 100;
-  var options = {
+  let accountId = 100;
+  let options = {
     windowMode: 0
   };
 
@@ -1978,7 +1978,7 @@ requestPermissionsFromUser(permissions: Array&lt;string&gt;, requestCallback: As
 **示例：**
 
   ```ts
-       var permissions=['com.example.permission']
+       let permissions=['com.example.permission']
        this.context.requestPermissionsFromUser(permissions,(result) => {
        console.log('requestPermissionsFromUserresult:' + JSON.stringify(result));
   });
@@ -2009,7 +2009,7 @@ requestPermissionsFromUser(permissions: Array&lt;string&gt;) : Promise&lt;Permis
 **示例：**
 
   ```ts
-   var permissions=['com.example.permission']
+   let permissions=['com.example.permission']
        this.context.requestPermissionsFromUser(permissions).then((data) => {
       console.log('success:' + JSON.stringify(data));
   }).catch((error) => {
@@ -2093,9 +2093,9 @@ setMissionIcon(icon: image.PixelMap, callback:AsyncCallback\<void>): void;
 
   ```ts
     import image from '@ohos.multimedia.image';
-    var imagePixelMap;
-    var color = new ArrayBuffer(0);
-    var initializationOptions = {
+    let imagePixelMap;
+    let color = new ArrayBuffer(0);
+    let initializationOptions = {
        size: {
            height: 100,
            width: 100
@@ -2140,9 +2140,9 @@ setMissionIcon(icon: image.PixelMap): Promise\<void>;
 
   ```ts
     import image from '@ohos.multimedia.image';
-    var imagePixelMap;
-    var color = new ArrayBuffer(0);
-    var initializationOptions = {
+    let imagePixelMap;
+    let color = new ArrayBuffer(0);
+    let initializationOptions = {
       size: {
           height: 100,
           width: 100
@@ -2180,7 +2180,7 @@ restoreWindowStage(localStorage: LocalStorage) : void;
 **示例：**
 
   ```ts
-    var storage = new LocalStorage();
+    let storage = new LocalStorage();
     this.context.restoreWindowStage(storage);
   ```
 
@@ -2201,6 +2201,6 @@ isTerminating(): boolean;
 **示例：**
 
   ```ts
-  var isTerminating = this.context.isTerminating();
+  let isTerminating = this.context.isTerminating();
   console.log('ability state :' + isTerminating);
   ```
\ No newline at end of file
diff --git a/zh-cn/application-dev/reference/apis/js-apis-inner-application-windowExtensionContext.md b/zh-cn/application-dev/reference/apis/js-apis-inner-application-windowExtensionContext.md
index 54bc9c07194168ffd37d3b3de434454b34377377..9605818ed8e7a7e41bdf096ee0fafbfc0b1846f7 100644
--- a/zh-cn/application-dev/reference/apis/js-apis-inner-application-windowExtensionContext.md
+++ b/zh-cn/application-dev/reference/apis/js-apis-inner-application-windowExtensionContext.md
@@ -46,11 +46,11 @@ startAbility(want: Want, options: StartOptions, callback: AsyncCallback&lt;void&
 **示例：**
 
   ```ts
-  var want = {
+  let want = {
     bundleName: 'com.example.myapplication',
     abilityName: 'MainAbility'
   };
-  var options = {
+  let options = {
     windowMode: 102
   };
 
@@ -96,11 +96,11 @@ startAbility(want: Want, options?: StartOptions): Promise\<void>
 **示例：**
 
   ```ts
-  var want = {
+  let want = {
     bundleName: 'com.example.myapp',
     abilityName: 'MainAbility'
   };
-  var options = {
+  let options = {
   	windowMode: 102,
   };