!14276 文档资料描述优化修改

Merge pull request !14276 from mingxihua/master

zh-cn/application-dev/reference/apis/js-apis-ability-context.md

@@ -65,7 +65,7 @@ startAbility(want: Want, callback: AsyncCallback<void>): void;
 **示例：**
 
   ```ts
-  var want = {
+  let want = {
     bundleName: "com.example.myapplication",
     abilityName: "MyAbility"
   };
@@ -107,7 +107,7 @@ startAbility(want: Want, options: StartOptions, callback: AsyncCallback<void&
 | 参数名 | 类型 | 必填 | 说明 |
 | -------- | -------- | -------- | -------- |
 | want | [Want](js-apis-application-want.md)  | 是 | 启动Ability的want信息。 |
-| options | [StartOptions](js-apis-application-startOptions.md) | 是 | 启动Ability所携带的参数。 |
+| options | [StartOptions](js-apis-app-ability-startOptions.md) | 是 | 启动Ability所携带的参数。 |
 | callback | AsyncCallback<void> | 是 | callback形式返回启动结果。 |
 
 **错误码：**
@@ -121,12 +121,12 @@ startAbility(want: Want, options: StartOptions, callback: AsyncCallback<void&
 **示例：**
 
   ```ts
-  var want = {
+  let want = {
     deviceId: "",
     bundleName: "com.example.myapplication",
     abilityName: "EntryAbility"
   };
-  var options = {
+  let options = {
     windowMode: 0
   };
 
@@ -166,7 +166,7 @@ startAbility(want: Want, options?: StartOptions): Promise<void>;
 | 参数名 | 类型 | 必填 | 说明 |
 | -------- | -------- | -------- | -------- |
 | want | [Want](js-apis-application-want.md) | 是 | 启动Ability的want信息。 |
-| options | [StartOptions](js-apis-application-startOptions.md) | 否 | 启动Ability所携带的参数。 |
+| options | [StartOptions](js-apis-app-ability-startOptions.md) | 否 | 启动Ability所携带的参数。 |
 
 **返回值：**
 
@@ -185,11 +185,11 @@ startAbility(want: Want, options?: StartOptions): Promise<void>;
 **示例：**
 
   ```ts
-  var want = {
+  let want = {
     bundleName: "com.example.myapplication",
     abilityName: "MyAbility"
   };
-  var options = {
+  let options = {
   	windowMode: 0,
   };
 
@@ -243,7 +243,7 @@ startAbilityForResult(want: Want, callback: AsyncCallback<AbilityResult>):
 **示例：**
 
   ```ts
-  var want = {
+  let want = {
     deviceId: "",
     bundleName: "com.example.myapplication",
     abilityName: "EntryAbility"
@@ -286,7 +286,7 @@ startAbilityForResult(want: Want, options: StartOptions, callback: AsyncCallback
 | 参数名 | 类型 | 必填 | 说明 |
 | -------- | -------- | -------- | -------- |
 | want |[Want](js-apis-application-want.md) | 是 | 启动Ability的want信息。 |
-| options | [StartOptions](js-apis-application-startOptions.md) | 是 | 启动Ability所携带的参数。 |
+| options | [StartOptions](js-apis-app-ability-startOptions.md) | 是 | 启动Ability所携带的参数。 |
 | callback | AsyncCallback<[AbilityResult](js-apis-inner-ability-abilityResult.md)> | 是 | 执行结果回调函数。 |
 
 **错误码：**
@@ -300,12 +300,12 @@ startAbilityForResult(want: Want, options: StartOptions, callback: AsyncCallback
 **示例：**
 
   ```ts
-  var want = {
+  let want = {
     deviceId: "",
     bundleName: "com.example.myapplication",
     abilityName: "EntryAbility"
   };
-  var options = {
+  let options = {
     windowMode: 0,
   };
 
@@ -347,7 +347,7 @@ startAbilityForResult(want: Want, options?: StartOptions): Promise<AbilityRes
 | 参数名 | 类型 | 必填 | 说明 |
 | -------- | -------- | -------- | -------- |
 | want | [Want](js-apis-application-want.md) | 是 | 启动Ability的want信息。 |
-| options | [StartOptions](js-apis-application-startOptions.md) | 否 | 启动Ability所携带的参数。 |
+| options | [StartOptions](js-apis-app-ability-startOptions.md) | 否 | 启动Ability所携带的参数。 |
 
 
 **返回值：**
@@ -367,11 +367,11 @@ startAbilityForResult(want: Want, options?: StartOptions): Promise<AbilityRes
 **示例：**
 
   ```ts
-  var want = {
+  let want = {
     bundleName: "com.example.myapplication",
     abilityName: "MyAbility"
   };
-  var options = {
+  let options = {
   	windowMode: 0,
   };
 
@@ -429,12 +429,12 @@ startAbilityForResultWithAccount(want: Want, accountId: number, callback: AsyncC
 **示例：**
 
   ```ts
-  var want = {
+  let want = {
     deviceId: "",
     bundleName: "com.example.myapplication",
     abilityName: "EntryAbility"
   };
-  var accountId = 100;
+  let accountId = 100;
 
   try {
     this.context.startAbilityForResultWithAccount(want, accountId, (error, result) => {
@@ -479,7 +479,7 @@ startAbilityForResultWithAccount(want: Want, accountId: number, options: StartOp
 | -------- | -------- | -------- | -------- |
 | want | [Want](js-apis-application-want.md) | 是 | 启动Ability的want信息。 |
 | accountId | number | 是 | 系统帐号的帐号ID，详情参考[getCreatedOsAccountsCount](js-apis-osAccount.md#getosaccountlocalidfromprocess)。 |
-| options | [StartOptions](js-apis-application-startOptions.md) | 是 | 启动Ability所携带的参数。 |
+| options | [StartOptions](js-apis-app-ability-startOptions.md) | 是 | 启动Ability所携带的参数。 |
 | callback | AsyncCallback\<void\> | 是 | 启动Ability的回调函数。 |
 
 **错误码：**
@@ -493,13 +493,13 @@ startAbilityForResultWithAccount(want: Want, accountId: number, options: StartOp
 **示例：**
 
   ```ts
-  var want = {
+  let want = {
     deviceId: "",
     bundleName: "com.example.myapplication",
     abilityName: "EntryAbility"
   };
-  var accountId = 100;
-  var options = {
+  let accountId = 100;
+  let options = {
     windowMode: 0
   };
 
@@ -546,7 +546,7 @@ startAbilityForResultWithAccount(want: Want, accountId: number, options?: StartO
 | -------- | -------- | -------- | -------- |
 | want | [Want](js-apis-application-want.md) | 是 | 启动Ability的want信息。 |
 | accountId | number | 是 | 系统帐号的帐号ID，详情参考[getCreatedOsAccountsCount](js-apis-osAccount.md#getosaccountlocalidfromprocess)。 |
-| options | [StartOptions](js-apis-application-startOptions.md) | 否 | 启动Ability所携带的参数。 |
+| options | [StartOptions](js-apis-app-ability-startOptions.md) | 否 | 启动Ability所携带的参数。 |
 
 **返回值：**
 
@@ -565,13 +565,13 @@ startAbilityForResultWithAccount(want: Want, accountId: number, options?: StartO
 **示例：**
 
   ```ts
-  var want = {
+  let want = {
     deviceId: "",
     bundleName: "com.example.myapplication",
     abilityName: "EntryAbility"
   };
-  var accountId = 100;
-  var options = {
+  let accountId = 100;
+  let options = {
     windowMode: 0
   };
 
@@ -621,7 +621,7 @@ startServiceExtensionAbility(want: Want, callback: AsyncCallback\<void>): void;
 **示例：**
 
   ```ts
-  var want = {
+  let want = {
     deviceId: "",
     bundleName: "com.example.myapplication",
     abilityName: "EntryAbility"
@@ -672,7 +672,7 @@ startServiceExtensionAbility(want: Want): Promise\<void>;
 **示例：**
 
   ```ts
-  var want = {
+  let want = {
     deviceId: "",
     bundleName: "com.example.myapplication",
     abilityName: "EntryAbility"
@@ -727,12 +727,12 @@ startServiceExtensionAbilityWithAccount(want: Want, accountId: number, callback:
 **示例：**
 
   ```ts
-  var want = {
+  let want = {
     deviceId: "",
     bundleName: "com.example.myapplication",
     abilityName: "EntryAbility"
   };
-  var accountId = 100;
+  let accountId = 100;
 
   try {
     this.context.startServiceExtensionAbilityWithAccount(want, accountId, (error) => {
@@ -782,12 +782,12 @@ startServiceExtensionAbilityWithAccount(want: Want, accountId: number): Promise\
 **示例：**
 
   ```ts
-  var want = {
+  let want = {
     deviceId: "",
     bundleName: "com.example.myapplication",
     abilityName: "EntryAbility"
   };
-  var accountId = 100;
+  let accountId = 100;
 
   try {
     this.context.startServiceExtensionAbilityWithAccount(want, accountId)
@@ -834,7 +834,7 @@ stopServiceExtensionAbility(want: Want, callback: AsyncCallback\<void>): void;
 **示例：**
 
   ```ts
-  var want = {
+  let want = {
     deviceId: "",
     bundleName: "com.example.myapplication",
     abilityName: "EntryAbility"
@@ -891,7 +891,7 @@ stopServiceExtensionAbility(want: Want): Promise\<void>;
 **示例：**
 
   ```ts
-  var want = {
+  let want = {
     deviceId: "",
     bundleName: "com.example.myapplication",
     abilityName: "EntryAbility"
@@ -952,12 +952,12 @@ stopServiceExtensionAbilityWithAccount(want: Want, accountId: number, callback:
 **示例：**
 
   ```ts
-  var want = {
+  let want = {
     deviceId: "",
     bundleName: "com.example.myapplication",
     abilityName: "EntryAbility"
   };
-  var accountId = 100;
+  let accountId = 100;
 
   try {
     this.context.startAbilityWithAccount(want, accountId, (error) => {
@@ -1013,12 +1013,12 @@ stopServiceExtensionAbilityWithAccount(want: Want, accountId: number): Promise\<
 **示例：**
 
   ```ts
-  var want = {
+  let want = {
     deviceId: "",
     bundleName: "com.example.myapplication",
     abilityName: "EntryAbility"
   };
-  var accountId = 100;
+  let accountId = 100;
 
   try {
     this.context.startAbilityWithAccount(want, accountId, (error) => {
@@ -1144,13 +1144,13 @@ 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
   }
@@ -1207,13 +1207,13 @@ 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
   }
@@ -1270,18 +1270,18 @@ connectServiceExtensionAbility(want: Want, options: ConnectOptions): number;
 **示例：**
 
   ```ts
-  var want = {
+  let want = {
     deviceId: "",
     bundleName: "com.example.myapplication",
     abilityName: "EntryAbility"
   };
-  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) {
@@ -1329,19 +1329,19 @@ connectServiceExtensionAbilityWithAccount(want: Want, accountId: number, options
 **示例：**
 
   ```ts
-  var want = {
+  let want = {
     deviceId: "",
     bundleName: "com.example.myapplication",
     abilityName: "EntryAbility"
   };
-  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) {
@@ -1383,7 +1383,7 @@ 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)
@@ -1430,7 +1430,7 @@ 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) => {
@@ -1482,10 +1482,10 @@ 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: "EntryAbility",
@@ -1513,10 +1513,10 @@ 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: "EntryAbility",
@@ -1580,12 +1580,12 @@ startAbilityWithAccount(want: Want, accountId: number, callback: AsyncCallback\<
 **示例：**
 
   ```ts
-  var want = {
+  let want = {
     deviceId: "",
     bundleName: "com.example.myapplication",
     abilityName: "EntryAbility"
   };
-  var accountId = 100;
+  let accountId = 100;
 
   try {
     this.context.startAbilityWithAccount(want, accountId, (error) => {
@@ -1629,7 +1629,7 @@ startAbilityWithAccount(want: Want, accountId: number, options: StartOptions, ca
 | -------- | -------- | -------- | -------- |
 | want | [Want](js-apis-application-want.md) | 是 | 启动Ability的want信息。 |
 | accountId | number | 是 | 系统帐号的帐号ID，详情参考[getCreatedOsAccountsCount](js-apis-osAccount.md#getosaccountlocalidfromprocess)。|
-| options | [StartOptions](js-apis-application-startOptions.md) | 是 | 启动Ability所携带的参数。 |
+| options | [StartOptions](js-apis-app-ability-startOptions.md) | 是 | 启动Ability所携带的参数。 |
 | callback | AsyncCallback\<void\> | 是 | 启动Ability的回调函数。 |
 
 **错误码：**
@@ -1643,13 +1643,13 @@ startAbilityWithAccount(want: Want, accountId: number, options: StartOptions, ca
 **示例：**
 
   ```ts
-  var want = {
+  let want = {
     deviceId: "",
     bundleName: "com.example.myapplication",
     abilityName: "EntryAbility"
   };
-  var accountId = 100;
-  var options = {
+  let accountId = 100;
+  let options = {
     windowMode: 0
   };
 
@@ -1695,7 +1695,7 @@ startAbilityWithAccount(want: Want, accountId: number, options?: StartOptions):
 | -------- | -------- | -------- | -------- |
 | want | [Want](js-apis-application-want.md) | 是 | 启动Ability的want信息。 |
 | accountId | number | 是 | 系统帐号的帐号ID，详情参考[getCreatedOsAccountsCount](js-apis-osAccount.md#getosaccountlocalidfromprocess)。 |
-| options | [StartOptions](js-apis-application-startOptions.md) | 否 | 启动Ability所携带的参数。 |
+| options | [StartOptions](js-apis-app-ability-startOptions.md) | 否 | 启动Ability所携带的参数。 |
 
 **错误码：**
 
@@ -1708,13 +1708,13 @@ startAbilityWithAccount(want: Want, accountId: number, options?: StartOptions):
 **示例：**
 
   ```ts
-  var want = {
+  let want = {
     deviceId: "",
     bundleName: "com.example.myapplication",
     abilityName: "EntryAbility"
   };
-  var accountId = 100;
-  var options = {
+  let accountId = 100;
+  let options = {
     windowMode: 0
   };
 
@@ -1810,9 +1810,9 @@ 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
@@ -1857,9 +1857,9 @@ 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
@@ -1897,7 +1897,7 @@ restoreWindowStage(localStorage: LocalStorage) : void;
 **示例：**
 
   ```ts
-    var storage = new LocalStorage();
+    let storage = new LocalStorage();
     this.context.restoreWindowStage(storage);
   ```
 
@@ -1918,6 +1918,6 @@ 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

zh-cn/application-dev/reference/apis/js-apis-ability-featureAbility.md

@@ -145,7 +145,7 @@ acquireDataAbilityHelper(uri: string): DataAbilityHelper
 
 ```ts
 import featureAbility from '@ohos.ability.featureAbility';
-var dataAbilityHelper = featureAbility.acquireDataAbilityHelper(
+let dataAbilityHelper = featureAbility.acquireDataAbilityHelper(
     "dataability:///com.example.DataAbility"
 );
 ```
@@ -475,7 +475,7 @@ getContext(): Context
 
 ```ts
 import featureAbility from '@ohos.ability.featureAbility';
-var context = featureAbility.getContext()
+let context = featureAbility.getContext()
 context.getBundleName((err, data) => {
     console.info("getBundleName err: " + JSON.stringify(err) + "data: " + JSON.stringify(data));
 });
@@ -570,7 +570,7 @@ function onDisconnectCallback(element){
 function onFailedCallback(code){
     console.log('featureAbilityTest ConnectAbility onFailed errCode : ' + code)
 }
-var connectId = featureAbility.connectAbility(
+let connectId = featureAbility.connectAbility(
     {
         deviceId: "",
         bundleName: "com.ix.ServiceAbility",
@@ -613,7 +613,7 @@ function onDisconnectCallback(element){
 function onFailedCallback(code){
     console.log('featureAbilityTest ConnectAbility onFailed errCode : ' + code)
 }
-var connectId = featureAbility.connectAbility(
+let connectId = featureAbility.connectAbility(
     {
         bundleName: "com.ix.ServiceAbility",
         abilityName: "com.ix.ServiceAbility.ServiceAbilityA",
@@ -665,7 +665,7 @@ function onDisconnectCallback(element){
 function onFailedCallback(code){
     console.log('featureAbilityTest ConnectAbility onFailed errCode : ' + code)
 }
-var connectId = featureAbility.connectAbility(
+let connectId = featureAbility.connectAbility(
     {
         bundleName: "com.ix.ServiceAbility",
         abilityName: "com.ix.ServiceAbility.ServiceAbilityA",

zh-cn/application-dev/reference/apis/js-apis-ability-particleAbility.md

@@ -196,7 +196,7 @@ acquireDataAbilityHelper(uri: string): DataAbilityHelper
 ```ts
 import particleAbility from '@ohos.ability.particleAbility'
 
-var uri = "";
+let uri = "";
 particleAbility.acquireDataAbilityHelper(uri)
 ```
 
@@ -428,7 +428,7 @@ function onFailedCallback(code) {
     console.log('particleAbilityTest ConnectAbility onFailed errCode : ' + code)
 }
 
-var connId = particleAbility.connectAbility(
+let connId = particleAbility.connectAbility(
     {
         bundleName: "com.ix.ServiceAbility",
         abilityName: "ServiceAbilityA",
@@ -479,7 +479,7 @@ function onFailedCallback(code) {
     console.log('particleAbilityTest ConnectAbility onFailed errCode : ' + code)
 }
 
-var connId = particleAbility.connectAbility(
+let connId = particleAbility.connectAbility(
     {
         bundleName: "com.ix.ServiceAbility",
         abilityName: "ServiceAbilityA",
@@ -530,7 +530,7 @@ function onFailedCallback(code) {
     console.log('particleAbilityTest ConnectAbility onFailed errCode : ' + code)
 }
 
-var connId = particleAbility.connectAbility(
+let connId = particleAbility.connectAbility(
     {
         bundleName: "com.ix.ServiceAbility",
         abilityName: "ServiceAbilityA",

zh-cn/application-dev/reference/apis/js-apis-app-ability-dataUriUtils.md

@@ -36,7 +36,7 @@ getId(uri: string): number
 
 ```ts
 try {
-    var id = dataUriUtils.getId("com.example.dataUriUtils/1221")
+    let id = dataUriUtils.getId("com.example.dataUriUtils/1221")
     console.info('get id: ' + id)
 } catch(err) {
     console.error('get id err ,check the uri' + err)
@@ -69,9 +69,9 @@ attachId(uri: string, id: number): string
 **示例：**
 
 ```ts
-var id = 1122;
+let id = 1122;
 try {
-    var uri = dataUriUtils.attachId(
+    let uri = dataUriUtils.attachId(
         "com.example.dataUriUtils",
         id,
     )
@@ -108,7 +108,7 @@ deleteId(uri: string): string
 
 ```ts
 try {
-    var uri = dataUriUtils.deleteId("com.example.dataUriUtils/1221")
+    let uri = dataUriUtils.deleteId("com.example.dataUriUtils/1221")
     console.info('delete id with the uri is: ' + uri)
 } catch(err) {
     console.error('delete uri err, check the input uri' + err)
@@ -144,8 +144,8 @@ updateId(uri: string, id: number): string
 ```ts
 
 try {
-    var id = 1122;
-    var uri = dataUriUtils.updateId(
+    let id = 1122;
+    let uri = dataUriUtils.updateId(
         "com.example.dataUriUtils/1221",
         id
     )

zh-cn/application-dev/reference/apis/js-apis-app-ability-environmentCallback.md

@@ -35,7 +35,7 @@ onConfigurationUpdated(config: Configuration): void;
   ```ts
 import UIAbility from "@ohos.app.ability.Ability";
 
-var callbackId;
+let callbackId;
 
 export default class MyAbility extends UIAbility {
     onCreate() {

zh-cn/application-dev/reference/apis/js-apis-app-ability-errorManager.md

@@ -35,12 +35,12 @@ on(type: "error", observer: ErrorObserver): number;
 **示例：**
     
 ```ts
-var observer = {
+let observer = {
     onUnhandledException(errorMsg) {
         console.log('onUnhandledException, errorMsg: ', errorMsg)
     }
 }
-var observerId = -1;
+let observerId = -1;
 try {
     observerId = errorManager.on("error", observer);
 } catch (paramError) {
@@ -67,7 +67,7 @@ off(type: "error", observerId: number,  callback: AsyncCallback\<void>): void;
 **示例：**
     
 ```ts
-var observerId = 100;
+let observerId = 100;
 
 function unregisterErrorObserverCallback(err) {
     if (err) {
@@ -105,7 +105,7 @@ off(type: "error", observerId: number): Promise\<void>;
 **示例：**
     
 ```ts
-var observerId = 100;
+let observerId = 100;
 try {
     errorManager.off("error", observerId)
         .then((data) => {

zh-cn/application-dev/reference/apis/js-apis-app-ability-missionManager.md

@@ -46,7 +46,7 @@ on(type:"mission", listener: MissionListener): number;
 import missionManager from '@ohos.app.ability.missionManager';
 import UIAbility from '@ohos.app.ability.UIAbility';
 
-var listener = {
+let listener = {
     onMissionCreated: function (mission) {console.log("--------onMissionCreated-------")},
     onMissionDestroyed: function (mission) {console.log("--------onMissionDestroyed-------")},
     onMissionSnapshotChanged: function (mission) {console.log("--------onMissionSnapshotChanged-------")},
@@ -56,7 +56,7 @@ var listener = {
     onMissionLabelUpdated: function (mission) {console.log("--------onMissionLabelUpdated-------")}
 };
 
-var listenerId = -1;
+let listenerId = -1;
 
 export default class EntryAbility extends UIAbility {
     onCreate(want, launchParam) {
@@ -128,7 +128,7 @@ off(type: "mission", listenerId: number, callback: AsyncCallback<void>): v
 import missionManager from '@ohos.app.ability.missionManager';
 import UIAbility from '@ohos.app.ability.UIAbility';
 
-var listener = {
+let listener = {
     onMissionCreated: function (mission) {console.log("--------onMissionCreated-------")},
     onMissionDestroyed: function (mission) {console.log("--------onMissionDestroyed-------")},
     onMissionSnapshotChanged: function (mission) {console.log("--------onMissionSnapshotChanged-------")},
@@ -138,7 +138,7 @@ var listener = {
     onMissionLabelUpdated: function (mission) {console.log("--------onMissionLabelUpdated-------")}
 };
 
-var listenerId = -1;
+let listenerId = -1;
 
 export default class EntryAbility extends UIAbility {
     onCreate(want, launchParam) {
@@ -215,7 +215,7 @@ off(type: "mission", listenerId: number): Promise<void>;
 import missionManager from '@ohos.app.ability.missionManager';
 import UIAbility from '@ohos.app.ability.UIAbility';
 
-var listener = {
+let listener = {
     onMissionCreated: function (mission) {console.log("--------onMissionCreated-------")},
     onMissionDestroyed: function (mission) {console.log("--------onMissionDestroyed-------")},
     onMissionSnapshotChanged: function (mission) {console.log("--------onMissionSnapshotChanged-------")},
@@ -225,7 +225,7 @@ var listener = {
     onMissionLabelUpdated: function (mission) {console.log("--------onMissionLabelUpdated-------")}
 };
 
-var listenerId = -1;
+let listenerId = -1;
 
 export default class EntryAbility extends UIAbility {
     onCreate(want, launchParam) {
@@ -299,7 +299,7 @@ getMissionInfo(deviceId: string, missionId: number, callback: AsyncCallback<M
 
   let testMissionId = 1;
   try {
-    var allMissions=await missionManager.getMissionInfos("",10).catch(function(err){console.log(err);});
+    let allMissions=await missionManager.getMissionInfos("",10).catch(function(err){console.log(err);});
     if (allMissions && allMissions.length > 0) {
         testMissionId = allMissions[0].missionId;
     }

zh-cn/application-dev/reference/apis/js-apis-app-ability-uiAbility.md

@@ -359,8 +359,8 @@ call(method: string, data: rpc.Sequenceable): Promise<void>;
       return true;
     }
   };
-  var method = 'call_Function'; // 约定的通知消息字符串
-  var caller;
+  let method = 'call_Function'; // 约定的通知消息字符串
+  let caller;
   export default class MainUIAbility extends UIAbility {
     onWindowStageCreate(windowStage) {
       this.context.startAbilityByCall({
@@ -440,8 +440,8 @@ callWithResult(method: string, data: rpc.Sequenceable): Promise<rpc.MessagePa
       return true;
     }
   };
-  var method = 'call_Function';
-  var caller;
+  let method = 'call_Function';
+  let caller;
   export default class MainUIAbility extends UIAbility {
     onWindowStageCreate(windowStage) {
       this.context.startAbilityByCall({
@@ -490,7 +490,7 @@ release(): void;
 **示例：**
     
   ```ts
-  var caller;
+  let caller;
   export default class MainUIAbility extends UIAbility {
     onWindowStageCreate(windowStage) {
       this.context.startAbilityByCall({
@@ -530,7 +530,7 @@ release(): void;
 **示例：**
     
   ```ts
-  var caller;
+  let caller;
   export default class MainUIAbility extends UIAbility {
     onWindowStageCreate(windowStage) {
       this.context.startAbilityByCall({
@@ -581,7 +581,7 @@ release(): void;
 **示例：**
     
   ```ts
-  var caller;
+  let caller;
   export default class MainUIAbility extends UIAbility {
     onWindowStageCreate(windowStage) {
       this.context.startAbilityByCall({
@@ -631,7 +631,7 @@ off(type: "release", callback: OnReleaseCallback): void;
 **示例：**
     
   ```ts
-  var caller;
+  let caller;
   export default class MainUIAbility extends UIAbility {
     onWindowStageCreate(windowStage) {
       this.context.startAbilityByCall({
@@ -682,7 +682,7 @@ off(type: "release"): void;
 **示例：**
     
   ```ts
-  var caller;
+  let caller;
   export default class MainUIAbility extends UIAbility {
     onWindowStageCreate(windowStage) {
       this.context.startAbilityByCall({
@@ -760,7 +760,7 @@ on(method: string, callback: CalleeCallback): void;
           return true;
       }
   };
-  var method = 'call_Function';
+  let method = 'call_Function';
   function funcCallBack(pdata) {
       console.log('Callee funcCallBack is called ' + pdata);
       let msg = new MyMessageAble("test", "");
@@ -806,7 +806,7 @@ off(method: string): void;
 **示例：**
     
   ```ts
-  var method = 'call_Function';
+  let method = 'call_Function';
   export default class MainUIAbility extends UIAbility {
     onCreate(want, launchParam) {
       console.log('Callee onCreate is called');

zh-cn/application-dev/reference/apis/js-apis-application-ability.md

@@ -306,7 +306,7 @@ onMemoryLevel(level: AbilityConstant.MemoryLevel): void;
 
   | 参数名 | 类型 | 必填 | 说明 | 
   | -------- | -------- | -------- | -------- |
-  | level | [AbilityConstant.MemoryLevel](js-apis-application-abilityConstant.md#abilityconstantmemorylevel) | 是 | 回调返回内存微调级别，显示当前内存使用状态。| 
+  | level | [AbilityConstant.MemoryLevel](js-apis-app-ability-abilityConstant.md#abilityconstantmemorylevel) | 是 | 回调返回内存微调级别，显示当前内存使用状态。| 
 
 **示例：**
 
@@ -330,7 +330,7 @@ onSaveState(reason: AbilityConstant.StateType, wantParam : {[key: string]: any})
 
   | 参数名 | 类型 | 必填 | 说明 |
   | -------- | -------- | -------- | -------- |
-  | reason | [AbilityConstant.StateType](js-apis-application-abilityConstant.md#abilityconstantstatetype) | 是 | 回调保存状态的原因。 |
+  | reason | [AbilityConstant.StateType](js-apis-app-ability-abilityConstant.md#abilityconstantstatetype) | 是 | 回调保存状态的原因。 |
   | wantParam | {[key: string]: any} | 是 | want相关参数。 |
 
 **返回值：**
@@ -414,8 +414,8 @@ call(method: string, data: rpc.Sequenceable): Promise<void>;
       return true;
     }
   };
-  var method = 'call_Function'; // 约定的通知消息字符串
-  var caller;
+  let method = 'call_Function'; // 约定的通知消息字符串
+  let caller;
   export default class EntryAbility extends UIAbility {
     onWindowStageCreate(windowStage) {
       this.context.startAbilityByCall({
@@ -499,8 +499,8 @@ callWithResult(method: string, data: rpc.Sequenceable): Promise<rpc.MessagePa
       return true;
     }
   };
-  var method = 'call_Function';
-  var caller;
+  let method = 'call_Function';
+  let caller;
   export default class EntryAbility extends UIAbility {
     onWindowStageCreate(windowStage) {
       this.context.startAbilityByCall({
@@ -551,7 +551,7 @@ release(): void;
   ```ts
   import UIAbility from '@ohos.app.ability.UIAbility';
   
-  var caller;
+  let caller;
   
   export default class EntryAbility extends UIAbility {
     onWindowStageCreate(windowStage) {
@@ -594,7 +594,7 @@ release(): void;
   ```ts
   import UIAbility from '@ohos.app.ability.UIAbility';
   
-  var caller;
+  let caller;
   
   export default class EntryAbility extends UIAbility {
     onWindowStageCreate(windowStage) {
@@ -673,7 +673,7 @@ on(method: string, callback: CalleeCallBack): void;
           return true;
       }
   };
-  var method = 'call_Function';
+  let method = 'call_Function';
   function funcCallBack(pdata) {
       console.log('Callee funcCallBack is called ' + pdata);
       let msg = new MyMessageAble("test", "");
@@ -720,7 +720,7 @@ off(method: string): void;
   ```ts
   import UIAbility from '@ohos.app.ability.UIAbility';
   
-  var method = 'call_Function';
+  let method = 'call_Function';
   
   export default class EntryAbility extends UIAbility {
     onCreate(want, launchParam) {

zh-cn/application-dev/reference/apis/js-apis-application-abilityDelegatorRegistry.md

@@ -43,7 +43,7 @@ getAbilityDelegator(): AbilityDelegator
 **示例：**
 
 ```ts
-var abilityDelegator;
+let abilityDelegator;
 
 abilityDelegator = AbilityDelegatorRegistry.getAbilityDelegator();
 ```
@@ -65,7 +65,7 @@ getArguments(): AbilityDelegatorArgs
 **示例：**
 
 ```ts
-var args = AbilityDelegatorRegistry.getArguments();
+let args = AbilityDelegatorRegistry.getArguments();
 console.info("getArguments bundleName:" + args.bundleName);
 console.info("getArguments testCaseNames:" + args.testCaseNames);
 console.info("getArguments testRunnerClassName:" + args.testRunnerClassName);

zh-cn/application-dev/reference/apis/js-apis-application-abilityLifecycleCallback.md

 # @ohos.application.AbilityLifecycleCallback (AbilityLifecycleCallback)
 
-AbilityLifecycleCallback模块提供应用上下文ApplicationContext的生命周期监听方法的回调类的能力，包括onAbilityCreate、onWindowStageCreate、onWindowStageDestroy等方法，可以作为[registerAbilityLifecycleCallback](js-apis-inner-application-applicationContext.md#applicationcontextregisterabilitylifecyclecallback)的入参。
+AbilityLifecycleCallback模块提供应用上下文ApplicationContext的生命周期监听方法的回调类的能力，包括onAbilityCreate、onWindowStageCreate、onWindowStageDestroy等方法，可以作为[on(type: "abilityLifecycle", callback: AbilityLifecycleCallback)](js-apis-inner-application-applicationContext.md#applicationcontextontype-abilitylifecycle-callback-abilitylifecyclecallback)的入参。
 
 > **说明：**
 > 
@@ -158,7 +158,7 @@ onAbilityContinue(ability: Ability): void;
 ```ts
 import AbilityStage from "@ohos.app.ability.AbilityStage";
 
-var lifecycleId;
+let lifecycleId;
 
 export default class MyAbilityStage extends AbilityStage {
     onCreate() {
@@ -211,3 +211,4 @@ export default class MyAbilityStage extends AbilityStage {
     }
 }
 ```
+<!--no_check-->
\ No newline at end of file

zh-cn/application-dev/reference/apis/js-apis-application-abilityManager.md

@@ -49,7 +49,7 @@ updateConfiguration(config: Configuration, callback: AsyncCallback\<void>): void
 **示例**：
 
 ```ts
-var config = {
+let config = {
   language: 'chinese' 
 }
 
@@ -83,7 +83,7 @@ updateConfiguration(config: Configuration): Promise\<void>
 **示例**：
 
 ```ts
-var config = {
+let config = {
   language: 'chinese' 
 }
 

zh-cn/application-dev/reference/apis/js-apis-application-appManager.md

@@ -231,7 +231,7 @@ unregisterApplicationStateObserver(observerId: number,  callback: AsyncCallback\
 **示例：**
     
   ```ts
-  var observerId = 100;
+  let observerId = 100;
 
   function unregisterApplicationStateObserverCallback(err) {
     if (err) {
@@ -268,7 +268,7 @@ unregisterApplicationStateObserver(observerId: number): Promise\<void>;
 **示例：**
     
   ```ts
-  var observerId = 100;
+  let observerId = 100;
 
   appManager.unregisterApplicationStateObserver(observerId)
   .then((data) => {
@@ -362,8 +362,8 @@ killProcessWithAccount(bundleName: string, accountId: number): Promise\<void\>
 **示例：**
 
 ```ts
-var bundleName = 'bundleName';
-var accountId = 0;
+let bundleName = 'bundleName';
+let accountId = 0;
 appManager.killProcessWithAccount(bundleName, accountId)
    .then((data) => {
        console.log('------------ killProcessWithAccount success ------------', data);
@@ -397,8 +397,8 @@ killProcessWithAccount(bundleName: string, accountId: number, callback: AsyncCal
 **示例：**
 
 ```ts
-var bundleName = 'bundleName';
-var accountId = 0;
+let bundleName = 'bundleName';
+let accountId = 0;
 function killProcessWithAccountCallback(err, data) {
    if (err) {
        console.log('------------- killProcessWithAccountCallback fail, err: --------------', err);
@@ -431,7 +431,7 @@ killProcessesByBundleName(bundleName: string, callback: AsyncCallback\<void>);
 **示例：**
     
   ```ts
-  var bundleName = 'bundleName';
+  let bundleName = 'bundleName';
   function killProcessesByBundleNameCallback(err, data) {
     if (err) {
         console.log('------------- killProcessesByBundleNameCallback fail, err: --------------', err);
@@ -469,7 +469,7 @@ killProcessesByBundleName(bundleName: string): Promise\<void>;
 **示例：**
 
   ```ts
-  var bundleName = 'com.example.myapplication';
+  let bundleName = 'com.example.myapplication';
   appManager.killProcessesByBundleName(bundleName)
     .then((data) => {
         console.log('------------ killProcessesByBundleName success ------------', data);
@@ -501,7 +501,7 @@ clearUpApplicationData(bundleName: string, callback: AsyncCallback\<void>);
 **示例：**
     
   ```ts
-  var bundleName = 'bundleName';
+  let bundleName = 'bundleName';
   function clearUpApplicationDataCallback(err, data) {
     if (err) {
         console.log('------------- clearUpApplicationDataCallback fail, err: --------------', err);
@@ -539,7 +539,7 @@ clearUpApplicationData(bundleName: string): Promise\<void>;
 **示例：**
     
   ```ts
-  var bundleName = 'bundleName';
+  let bundleName = 'bundleName';
   appManager.clearUpApplicationData(bundleName)
     .then((data) => {
         console.log('------------ clearUpApplicationData success ------------', data);

zh-cn/application-dev/reference/apis/js-apis-application-environmentCallback.md

@@ -41,14 +41,14 @@ onMemoryLevel(level: number): void;
 
   | 参数名 | 类型 | 必填 | 说明 |
   | -------- | -------- | -------- | -------- |
-  | level  | [MemoryLevel](js-apis-application-abilityConstant.md#abilityconstantmemorylevel) | 是 | 表示当前内存的基线水平。 |
+  | level  | [MemoryLevel](js-apis-app-ability-abilityConstant.md#abilityconstantmemorylevel) | 是 | 表示当前内存的基线水平。 |
 
 **示例：**
 
   ```ts
 import UIAbility from '@ohos.app.ability.UIAbility';
 
-var callbackId;
+let callbackId;
 
 export default class EntryAbility extends UIAbility {
     onCreate() {

zh-cn/application-dev/reference/apis/js-apis-application-errorManager.md

@@ -28,7 +28,7 @@ registerErrorObserver(observer: ErrorObserver): number;
 **示例：**
     
 ```ts
-var observer = {
+let observer = {
     onUnhandledException(errorMsg) {
         console.log('onUnhandledException, errorMsg: ', errorMsg)
     }
@@ -54,7 +54,7 @@ unregisterErrorObserver(observerId: number,  callback: AsyncCallback\<void>): vo
 **示例：**
     
 ```ts
-var observerId = 100;
+let observerId = 100;
 
 function unregisterErrorObserverCallback(err) {
     if (err) {
@@ -88,7 +88,7 @@ unregisterErrorObserver(observerId: number): Promise\<void>;
 **示例：**
     
 ```ts
-var observerId = 100;
+let observerId = 100;
 errorManager.unregisterErrorObserver(observerId)
 .then((data) => {
     console.log('----------- unregisterErrorObserver success ----------', data);

zh-cn/application-dev/reference/apis/js-apis-application-missionManager.md

@@ -43,7 +43,7 @@ registerMissionListener(listener: MissionListener): number;
 **示例：**
 
 ```ts
-var listener = {
+let listener = {
     onMissionCreated: function (mission) {console.log("--------onMissionCreated-------")},
     onMissionDestroyed: function (mission) {console.log("--------onMissionDestroyed-------")},
     onMissionSnapshotChanged: function (mission) {console.log("--------onMissionSnapshotChanged-------")},
@@ -53,7 +53,7 @@ var listener = {
     onMissionLabelUpdated: function (mission) {console.log("--------onMissionLabelUpdated-------")}
 };
 console.log("registerMissionListener")
-var listenerid = missionManager.registerMissionListener(listener);
+let listenerid = missionManager.registerMissionListener(listener);
 ```
 
 
@@ -79,7 +79,7 @@ unregisterMissionListener(listenerId: number, callback: AsyncCallback<void&gt
 **示例：**
 
 ```ts
-  var listener = {
+  let listener = {
       onMissionCreated: function (mission) {console.log("--------onMissionCreated-------")},
       onMissionDestroyed: function (mission) {console.log("--------onMissionDestroyed-------")},
       onMissionSnapshotChanged: function (mission) {console.log("--------onMissionSnapshotChanged-------")},
@@ -89,7 +89,7 @@ unregisterMissionListener(listenerId: number, callback: AsyncCallback<void&gt
       onMissionLabelUpdated: function (mission) {console.log("--------onMissionLabelUpdated-------")}
   };
   console.log("registerMissionListener")
-  var listenerid = missionManager.registerMissionListener(listener);
+  let listenerid = missionManager.registerMissionListener(listener);
 
   missionManager.unregisterMissionListener(listenerid, (error) => {
       console.log("unregisterMissionListener");
@@ -124,7 +124,7 @@ unregisterMissionListener(listenerId: number): Promise<void>;
 **示例：**
 
 ```ts
-  var listener = {
+  let listener = {
       onMissionCreated: function (mission) {console.log("--------onMissionCreated-------")},
       onMissionDestroyed: function (mission) {console.log("--------onMissionDestroyed-------")},
       onMissionSnapshotChanged: function (mission) {console.log("--------onMissionSnapshotChanged-------")},
@@ -134,7 +134,7 @@ unregisterMissionListener(listenerId: number): Promise<void>;
       onMissionLabelUpdated: function (mission) {console.log("--------onMissionLabelUpdated-------")}
   };
   console.log("registerMissionListener")
-  var listenerid = missionManager.registerMissionListener(listener);
+  let listenerid = missionManager.registerMissionListener(listener);
 
   missionManager.unregisterMissionListener(listenerid).catch(function (err) {
       console.log(err);
@@ -167,7 +167,7 @@ getMissionInfo(deviceId: string, missionId: number, callback: AsyncCallback<M
   ```ts
   import missionManager from '@ohos.application.missionManager'
 
-  var allMissions=missionManager.getMissionInfos("",10).catch(function(err){console.log(err);});
+  let allMissions=missionManager.getMissionInfos("",10).catch(function(err){console.log(err);});
       missionManager.getMissionInfo("", allMissions[0].missionId, (error, mission) => {
         if (error.code) {
           console.log("getMissionInfo failed, error.code:" + JSON.stringify(error.code) +
@@ -215,7 +215,7 @@ getMissionInfo(deviceId: string, missionId: number): Promise<MissionInfo>;
   ```ts
   import missionManager from '@ohos.application.missionManager'
 
-  var mission = missionManager.getMissionInfo("", 10).catch(function (err){
+  let mission = missionManager.getMissionInfo("", 10).catch(function (err){
       console.log(err);
   });
   ```
@@ -288,7 +288,7 @@ getMissionInfos(deviceId: string, numMax: number): Promise<Array<MissionIn
   ```ts
   import missionManager from '@ohos.application.missionManager'
 
-  var allMissions = missionManager.getMissionInfos("", 10).catch(function (err){
+  let allMissions = missionManager.getMissionInfos("", 10).catch(function (err){
       console.log(err);
   });
   ```
@@ -327,7 +327,7 @@ getMissionSnapShot(deviceId: string, missionId: number, callback: AsyncCallback&
     }
     console.log("size = " + missions.length);
     console.log("missions = " + JSON.stringify(missions));
-    var id = missions[0].missionId;
+    let id = missions[0].missionId;
 
     missionManager.getMissionSnapShot("", id, (error, snapshot) => {
       if (error.code) {
@@ -371,15 +371,15 @@ getMissionSnapShot(deviceId: string, missionId: number): Promise<MissionSnaps
   ```ts
   import missionManager from '@ohos.application.missionManager'
 
-  var allMissions;
+  let allMissions;
   missionManager.getMissionInfos("",10).then(function(res){
     allMissions=res;
     }).catch(function(err){console.log(err);});
     console.log("size = " + allMissions.length);
     console.log("missions = " + JSON.stringify(allMissions));
-    var id = allMissions[0].missionId;
+    let id = allMissions[0].missionId;
 
-    var snapshot = missionManager.getMissionSnapShot("", id).catch(function (err){
+    let snapshot = missionManager.getMissionSnapShot("", id).catch(function (err){
         console.log(err);
     });
   ```
@@ -417,7 +417,7 @@ getLowResolutionMissionSnapShot(deviceId: string, missionId: number, callback: A
     }
     console.log("size = " + missions.length);
     console.log("missions = " + JSON.stringify(missions));
-    var id = missions[0].missionId;
+    let id = missions[0].missionId;
 
     missionManager.getLowResolutionMissionSnapShot("", id, (error, snapshot) => {
       if (error.code) {
@@ -461,15 +461,15 @@ getLowResolutionMissionSnapShot(deviceId: string, missionId: number): Promise\<M
   ```ts
   import missionManager from '@ohos.application.missionManager'
 
-  var allMissions;
+  let allMissions;
   missionManager.getMissionInfos("",10).then(function(res){
     allMissions=res;
     }).catch(function(err){console.log(err);});
     console.log("size = " + allMissions.length);
     console.log("missions = " + JSON.stringify(allMissions));
-    var id = allMissions[0].missionId;
+    let id = allMissions[0].missionId;
 
-    var snapshot = missionManager.getLowResolutionMissionSnapShot("", id).catch(function (err){
+    let snapshot = missionManager.getLowResolutionMissionSnapShot("", id).catch(function (err){
         console.log(err);
     });
   ```
@@ -507,7 +507,7 @@ lockMission(missionId: number, callback: AsyncCallback&lt;void&gt;): void;
     }
     console.log("size = " + missions.length);
     console.log("missions = " + JSON.stringify(missions));
-    var id = missions[0].missionId;
+    let id = missions[0].missionId;
 
     missionManager.lockMission(id).then(() => {
   	console.log("lockMission is called ");
@@ -544,13 +544,13 @@ lockMission(missionId: number): Promise&lt;void&gt;;
 
   ```ts
   import missionManager from '@ohos.application.missionManager'
-  var allMissions;
+  let allMissions;
   missionManager.getMissionInfos("",10).then(function(res){
     allMissions=res;
   }).catch(function(err){console.log(err);});
   console.log("size = " + allMissions.length);
   console.log("missions = " + JSON.stringify(allMissions));
-  var id = allMissions[0].missionId;
+  let id = allMissions[0].missionId;
 
   missionManager.lockMission(id).catch(function (err){
       console.log(err);
@@ -590,7 +590,7 @@ unlockMission(missionId: number, callback: AsyncCallback&lt;void&gt;): void;
     }
     console.log("size = " + missions.length);
     console.log("missions = " + JSON.stringify(missions));
-    var id = missions[0].missionId;
+    let id = missions[0].missionId;
 
     missionManager.unlockMission(id).then(() => {
   	console.log("unlockMission is called ");
@@ -628,13 +628,13 @@ unlockMission(missionId: number): Promise&lt;void&gt;;
   ```ts
   import missionManager from '@ohos.application.missionManager'
 
-  var allMissions;
+  let allMissions;
   missionManager.getMissionInfos("",10).then(function(res){
     allMissions=res;
   }).catch(function(err){console.log(err);});
   console.log("size = " + allMissions.length);
   console.log("missions = " + JSON.stringify(allMissions));
-  var id = allMissions[0].missionId;
+  let id = allMissions[0].missionId;
 
   missionManager.lockMission(id).catch(function (err){
       console.log(err);
@@ -677,7 +677,7 @@ clearMission(missionId: number, callback: AsyncCallback&lt;void&gt;): void;
     }
     console.log("size = " + missions.length);
     console.log("missions = " + JSON.stringify(missions));
-    var id = missions[0].missionId;
+    let id = missions[0].missionId;
 
     missionManager.clearMission(id).then(() => {
   	console.log("clearMission is called ");
@@ -715,13 +715,13 @@ clearMission(missionId: number): Promise&lt;void&gt;;
   ```ts
   import missionManager from '@ohos.application.missionManager'
 
-  var allMissions;
+  let allMissions;
   missionManager.getMissionInfos("",10).then(function(res){
     allMissions=res;
   }).catch(function(err){console.log(err);});
   console.log("size = " + allMissions.length);
   console.log("missions = " + JSON.stringify(allMissions));
-  var id = allMissions[0].missionId;
+  let id = allMissions[0].missionId;
 
   missionManager.clearMission(id).catch(function (err){
     console.log(err);
@@ -812,7 +812,7 @@ moveMissionToFront(missionId: number, callback: AsyncCallback&lt;void&gt;): void
     }
     console.log("size = " + missions.length);
     console.log("missions = " + JSON.stringify(missions));
-    var id = missions[0].missionId;
+    let id = missions[0].missionId;
 
     missionManager.moveMissionToFront(id).then(() => {
   	console.log("moveMissionToFront is called ");
@@ -838,7 +838,7 @@ moveMissionToFront(missionId: number, options: StartOptions, callback: AsyncCall
   | 参数名 | 类型 | 必填 | 说明 |
   | -------- | -------- | -------- | -------- |
   | missionId | number | 是 | 任务ID。 |
-  | options | [StartOptions](js-apis-application-startOptions.md) | 是 | 启动参数选项，用于指定任务切到前台时的窗口模式，设备ID等。 |
+  | options | [StartOptions](js-apis-app-ability-startOptions.md) | 是 | 启动参数选项，用于指定任务切到前台时的窗口模式，设备ID等。 |
   | callback | AsyncCallback&lt;void&gt; | 是 | 执行结果回调函数。 |
 
 **示例：**
@@ -854,7 +854,7 @@ moveMissionToFront(missionId: number, options: StartOptions, callback: AsyncCall
     }
     console.log("size = " + missions.length);
     console.log("missions = " + JSON.stringify(missions));
-    var id = missions[0].missionId;
+    let id = missions[0].missionId;
 
     missionManager.moveMissionToFront(id,{windowMode : 101}).then(() => {
   	console.log("moveMissionToFront is called ");
@@ -880,7 +880,7 @@ moveMissionToFront(missionId: number, options?: StartOptions): Promise&lt;void&g
   | 参数名 | 类型 | 必填 | 说明 |
   | -------- | -------- | -------- | -------- |
   | missionId | number | 是 | 任务ID。 |
-  | options | [StartOptions](js-apis-application-startOptions.md) | 否 | 启动参数选项，用于指定任务切到前台时的窗口模式，设备ID等。 |
+  | options | [StartOptions](js-apis-app-ability-startOptions.md) | 否 | 启动参数选项，用于指定任务切到前台时的窗口模式，设备ID等。 |
 
 **返回值：**
 
@@ -893,13 +893,13 @@ moveMissionToFront(missionId: number, options?: StartOptions): Promise&lt;void&g
   ```ts
   import missionManager from '@ohos.application.missionManager'
 
-  var allMissions;
+  let allMissions;
   missionManager.getMissionInfos("",10).then(function(res){
     allMissions=res;
   }).catch(function(err){console.log(err);});
   console.log("size = " + allMissions.length);
   console.log("missions = " + JSON.stringify(allMissions));
-  var id = allMissions[0].missionId;
+  let id = allMissions[0].missionId;
 
   missionManager.moveMissionToFront(id).catch(function (err){
     console.log(err);

zh-cn/application-dev/reference/apis/js-apis-inner-ability-dataAbilityHelper.md

@@ -35,10 +35,10 @@ openFile(uri: string, mode: string, callback: AsyncCallback\<number>): void
 
 ```ts
 import featureAbility from '@ohos.ability.featureAbility';
-var DAHelper = featureAbility.acquireDataAbilityHelper(
+let DAHelper = featureAbility.acquireDataAbilityHelper(
     "dataability:///com.example.DataAbility"
 );
-var mode = "rw";
+let mode = "rw";
 DAHelper.openFile("dataability:///com.example.DataAbility", mode, (err, data) => {
     console.info("openFile err: " + JSON.stringify(err) + "data: " + JSON.stringify(data));
 });
@@ -69,10 +69,10 @@ openFile(uri: string, mode: string): Promise\<number>
 
 ```ts
 import featureAbility from '@ohos.ability.featureAbility';
-var DAHelper = featureAbility.acquireDataAbilityHelper(
+let DAHelper = featureAbility.acquireDataAbilityHelper(
     "dataability:///com.example.DataAbility"
 );
-var mode = "rw";
+let mode = "rw";
 DAHelper.openFile("dataability:///com.example.DataAbility", mode).then((data) => {
     console.info("openFile data: " + JSON.stringify(data));
 });
@@ -98,7 +98,7 @@ on(type: 'dataChange', uri: string, callback: AsyncCallback\<void>): void
 
 ```ts
 import featureAbility from '@ohos.ability.featureAbility';
-var DAHelper = featureAbility.acquireDataAbilityHelper(
+let DAHelper = featureAbility.acquireDataAbilityHelper(
     "dataability:///com.example.DataAbility"
 );
 function onChangeNotify() {
@@ -131,7 +131,7 @@ off(type: 'dataChange', uri: string, callback?: AsyncCallback\<void>): void
 
 ```ts
 import featureAbility from '@ohos.ability.featureAbility';
-var DAHelper = featureAbility.acquireDataAbilityHelper(
+let DAHelper = featureAbility.acquireDataAbilityHelper(
     "dataability:///com.example.DataAbility"
 );
 function onChangeNotify() {
@@ -167,7 +167,7 @@ getType(uri: string, callback: AsyncCallback\<string>): void
 
 ```ts
 import featureAbility from '@ohos.ability.featureAbility';
-var DAHelper = featureAbility.acquireDataAbilityHelper(
+let DAHelper = featureAbility.acquireDataAbilityHelper(
     "dataability:///com.example.DataAbility"
 );
 DAHelper.getType("dataability:///com.example.DataAbility", (err, data) => {
@@ -199,7 +199,7 @@ getType(uri: string): Promise\<string>
 
 ```ts
 import featureAbility from '@ohos.ability.featureAbility';
-var DAHelper = featureAbility.acquireDataAbilityHelper(
+let DAHelper = featureAbility.acquireDataAbilityHelper(
     "dataability:///com.example.DataAbility"
 );
 DAHelper.getType("dataability:///com.example.DataAbility").then((data) => {
@@ -227,7 +227,7 @@ getFileTypes(uri: string, mimeTypeFilter: string, callback: AsyncCallback<Array\
 
 ```ts
 import featureAbility from '@ohos.ability.featureAbility';
-var DAHelper = featureAbility.acquireDataAbilityHelper(
+let DAHelper = featureAbility.acquireDataAbilityHelper(
     "dataability:///com.example.DataAbility"
 );
 DAHelper.getFileTypes( "dataability:///com.example.DataAbility", "image/*", (err, data) => {
@@ -260,7 +260,7 @@ getFileTypes(uri: string, mimeTypeFilter: string): Promise\<Array\<string>>
 
 ```ts
 import featureAbility from '@ohos.ability.featureAbility';
-var DAHelper = featureAbility.acquireDataAbilityHelper(
+let DAHelper = featureAbility.acquireDataAbilityHelper(
     "dataability:///com.example.DataAbility"
 );
 DAHelper.getFileTypes("dataability:///com.example.DataAbility", "image/*").then((data) => {
@@ -287,7 +287,7 @@ normalizeUri(uri: string, callback: AsyncCallback\<string>): void
 
 ```ts
 import featureAbility from '@ohos.ability.featureAbility';
-var DAHelper = featureAbility.acquireDataAbilityHelper(
+let DAHelper = featureAbility.acquireDataAbilityHelper(
     "dataability:///com.example.DataAbility"
 );
 DAHelper.normalizeUri("dataability:///com.example.DataAbility", (err, data) => {
@@ -319,7 +319,7 @@ normalizeUri(uri: string): Promise\<string>
 
 ```ts
 import featureAbility from '@ohos.ability.featureAbility';
-var DAHelper = featureAbility.acquireDataAbilityHelper(
+let DAHelper = featureAbility.acquireDataAbilityHelper(
     "dataability:///com.example.DataAbility"
 );
 DAHelper.normalizeUri("dataability:///com.example.DataAbility",).then((data) => {
@@ -346,7 +346,7 @@ denormalizeUri(uri: string, callback: AsyncCallback\<string>): void
 
 ```ts
 import featureAbility from '@ohos.ability.featureAbility';
-var DAHelper = featureAbility.acquireDataAbilityHelper(
+let DAHelper = featureAbility.acquireDataAbilityHelper(
     "dataability:///com.example.DataAbility"
 );
 DAHelper.denormalizeUri("dataability:///com.example.DataAbility", (err, data) => {
@@ -378,7 +378,7 @@ denormalizeUri(uri: string): Promise\<string>
 
 ```ts
 import featureAbility from '@ohos.ability.featureAbility';
-var DAHelper = featureAbility.acquireDataAbilityHelper(
+let DAHelper = featureAbility.acquireDataAbilityHelper(
     "dataability:///com.example.DataAbility"
 );
 DAHelper.denormalizeUri("dataability:///com.example.DataAbility",).then((data) => {
@@ -405,7 +405,7 @@ notifyChange(uri: string, callback: AsyncCallback\<void>): void
 
 ```ts
 import featureAbility from '@ohos.ability.featureAbility';
-var DAHelper = featureAbility.acquireDataAbilityHelper(
+let DAHelper = featureAbility.acquireDataAbilityHelper(
     "dataability:///com.example.DataAbility"
 );
 DAHelper.notifyChange("dataability:///com.example.DataAbility", (err) => {
@@ -437,7 +437,7 @@ notifyChange(uri: string): Promise\<void>
 
 ```ts
 import featureAbility from '@ohos.ability.featureAbility';
-var DAHelper = featureAbility.acquireDataAbilityHelper(
+let DAHelper = featureAbility.acquireDataAbilityHelper(
     "dataability:///com.example.DataAbility"
 );
 DAHelper.notifyChange("dataability:///com.example.DataAbility").then(() => {
@@ -465,7 +465,7 @@ insert(uri: string, valuesBucket: rdb.ValuesBucket, callback: AsyncCallback\<num
 
 ```ts
 import featureAbility from '@ohos.ability.featureAbility';
-var DAHelper = featureAbility.acquireDataAbilityHelper(
+let DAHelper = featureAbility.acquireDataAbilityHelper(
     "dataability:///com.example.DataAbility"
 );
 const valueBucket = {
@@ -504,7 +504,7 @@ insert(uri: string, valuesBucket: rdb.ValuesBucket): Promise\<number>
 
 ```ts
 import featureAbility from '@ohos.ability.featureAbility';
-var DAHelper = featureAbility.acquireDataAbilityHelper(
+let DAHelper = featureAbility.acquireDataAbilityHelper(
     "dataability:///com.example.DataAbility"
 );
 const valueBucket = {
@@ -538,10 +538,10 @@ batchInsert(uri: string, valuesBuckets: Array\<rdb.ValuesBucket>, callback: Asyn
 
 ```ts
 import featureAbility from '@ohos.ability.featureAbility';
-var DAHelper = featureAbility.acquireDataAbilityHelper(
+let DAHelper = featureAbility.acquireDataAbilityHelper(
     "dataability:///com.example.DataAbility"
 );
-var cars = new Array({"name": "roe11", "age": 21, "salary": 20.5, "blobType": "u8",},
+let cars = new Array({"name": "roe11", "age": 21, "salary": 20.5, "blobType": "u8",},
                      {"name": "roe12", "age": 21, "salary": 20.5, "blobType": "u8",},
                      {"name": "roe13", "age": 21, "salary": 20.5, "blobType": "u8",});
 DAHelper.batchInsert("dataability:///com.example.DataAbility", cars, (err, data) => {
@@ -574,10 +574,10 @@ batchInsert(uri: string, valuesBuckets: Array<rdb.ValuesBucket>): Promise\<numbe
 
 ```ts
 import featureAbility from '@ohos.ability.featureAbility';
-var DAHelper = featureAbility.acquireDataAbilityHelper(
+let DAHelper = featureAbility.acquireDataAbilityHelper(
     "dataability:///com.example.DataAbility"
 );
-var cars = new Array({"name": "roe11", "age": 21, "salary": 20.5, "blobType": "u8",},
+let cars = new Array({"name": "roe11", "age": 21, "salary": 20.5, "blobType": "u8",},
                      {"name": "roe12", "age": 21, "salary": 20.5, "blobType": "u8",},
                      {"name": "roe13", "age": 21, "salary": 20.5, "blobType": "u8",});
 DAHelper.batchInsert("dataability:///com.example.DataAbility", cars).then((data) => {
@@ -606,7 +606,7 @@ delete(uri: string, predicates: dataAbility.DataAbilityPredicates, callback: Asy
 ```ts
 import featureAbility from '@ohos.ability.featureAbility';
 import ohos_data_ability from '@ohos.data.dataAbility';
-var DAHelper = featureAbility.acquireDataAbilityHelper(
+let DAHelper = featureAbility.acquireDataAbilityHelper(
     "dataability:///com.example.DataAbility"
 );
 let da = new ohos_data_ability.DataAbilityPredicates();
@@ -641,7 +641,7 @@ delete(uri: string, predicates?: dataAbility.DataAbilityPredicates): Promise\<nu
 ```ts
 import featureAbility from '@ohos.ability.featureAbility';
 import ohos_data_ability from '@ohos.data.dataAbility';
-var DAHelper = featureAbility.acquireDataAbilityHelper(
+let DAHelper = featureAbility.acquireDataAbilityHelper(
     "dataability:///com.example.DataAbility"
 );
 let da = new ohos_data_ability.DataAbilityPredicates();
@@ -672,7 +672,7 @@ update(uri: string, valuesBucket: rdb.ValuesBucket, predicates: dataAbility.Data
 ```ts
 import featureAbility from '@ohos.ability.featureAbility';
 import ohos_data_ability from '@ohos.data.dataAbility';
-var DAHelper = featureAbility.acquireDataAbilityHelper(
+let DAHelper = featureAbility.acquireDataAbilityHelper(
     "dataability:///com.example.DataAbility"
 );
 const va = {
@@ -714,7 +714,7 @@ update(uri: string, valuesBucket: rdb.ValuesBucket, predicates?: dataAbility.Dat
 ```ts
 import featureAbility from '@ohos.ability.featureAbility';
 import ohos_data_ability from '@ohos.data.dataAbility';
-var DAHelper = featureAbility.acquireDataAbilityHelper(
+let DAHelper = featureAbility.acquireDataAbilityHelper(
     "dataability:///com.example.DataAbility"
 );
 const va = {
@@ -751,10 +751,10 @@ query(uri: string, columns: Array\<string>, predicates: dataAbility.DataAbilityP
 ```ts
 import featureAbility from '@ohos.ability.featureAbility';
 import ohos_data_ability from '@ohos.data.dataAbility';
-var DAHelper = featureAbility.acquireDataAbilityHelper(
+let DAHelper = featureAbility.acquireDataAbilityHelper(
     "dataability:///com.example.DataAbility"
 );
-var cars=new Array("value1", "value2", "value3", "value4");
+let cars=new Array("value1", "value2", "value3", "value4");
 let da = new ohos_data_ability.DataAbilityPredicates();
 DAHelper.query("dataability:///com.example.DataAbility", cars, da, (err, data) => {
     console.info("query err: " + JSON.stringify(err) + "data: " + JSON.stringify(data));
@@ -790,10 +790,10 @@ query(uri: string, columns?: Array\<string>, predicates?: dataAbility.DataAbilit
 ```ts
 import featureAbility from '@ohos.ability.featureAbility';
 import ohos_data_ability from '@ohos.data.dataAbility';
-var DAHelper = featureAbility.acquireDataAbilityHelper(
+let DAHelper = featureAbility.acquireDataAbilityHelper(
     "dataability:///com.example.DataAbility"
 );
-var cars = new Array("value1", "value2", "value3", "value4");
+let cars = new Array("value1", "value2", "value3", "value4");
 let da = new ohos_data_ability.DataAbilityPredicates();
 DAHelper.query("dataability:///com.example.DataAbility", cars, da).then((data) => {
     console.info("query data: " + JSON.stringify(data));

zh-cn/application-dev/reference/apis/js-apis-inner-app-context.md

@@ -13,7 +13,7 @@ Context对象是在featureAbility中创建实例，并通过featureAbility的[ge
 
 ```ts
 import featureAbility from '@ohos.ability.featureAbility';
-var context = featureAbility.getContext();
+let context = featureAbility.getContext();
 context.getOrCreateLocalDir().then((data) => {
     console.info("getOrCreateLocalDir data: " + JSON.stringify(data));
 });
@@ -39,7 +39,7 @@ getOrCreateLocalDir(callback: AsyncCallback\<string>): void
 
 ```ts
 import featureAbility from '@ohos.ability.featureAbility';
-var context = featureAbility.getContext();
+let context = featureAbility.getContext();
 context.getOrCreateLocalDir((err, data)=>{
     console.info("getOrCreateLocalDir err: " + JSON.stringify(err) + "data: " + JSON.stringify(data));
 });
@@ -67,7 +67,7 @@ getOrCreateLocalDir(): Promise\<string>
 
 ```ts
 import featureAbility from '@ohos.ability.featureAbility';
-var context = featureAbility.getContext();
+let context = featureAbility.getContext();
 context.getOrCreateLocalDir().then((data) => {
     console.info("getOrCreateLocalDir data: " + JSON.stringify(data));
 });
@@ -94,7 +94,7 @@ verifyPermission(permission: string, options: PermissionOptions, callback: Async
 ```ts
 import featureAbility from '@ohos.ability.featureAbility';
 import bundle from '@ohos.bundle.bundleManager';
-var context = featureAbility.getContext();
+let context = featureAbility.getContext();
 bundle.getBundleInfo('com.context.test', 1, (err, datainfo) =>{
     context.verifyPermission("com.example.permission", {uid:datainfo.appInfo.uid}, (err, data) =>{
         console.info("verifyPermission err: " + JSON.stringify(err) + "data: " + JSON.stringify(data));
@@ -124,7 +124,7 @@ verifyPermission(permission: string, callback: AsyncCallback\<number>): void
 
 ```ts
 import featureAbility from '@ohos.ability.featureAbility';
-var context = featureAbility.getContext();
+let context = featureAbility.getContext();
 context.verifyPermission("com.example.permission", (err, data) =>{
     console.info("verifyPermission err: " + JSON.stringify(err) + "data: " + JSON.stringify(data));
 });
@@ -155,8 +155,8 @@ verifyPermission(permission: string, options?: PermissionOptions): Promise\<numb
 
 ```ts
 import featureAbility from '@ohos.ability.featureAbility';
-var context = featureAbility.getContext();
-var Permission = {pid:1};
+let context = featureAbility.getContext();
+let Permission = {pid:1};
 context.verifyPermission('com.context.permission',Permission).then((data) => {
     console.info("verifyPermission data: " + JSON.stringify(data));
 });
@@ -184,7 +184,7 @@ requestPermissionsFromUser(permissions: Array\<string>, requestCode: number, res
 
 ```ts
 import featureAbility from '@ohos.ability.featureAbility';
-var context = featureAbility.getContext();
+let context = featureAbility.getContext();
 context.requestPermissionsFromUser(
     ["com.example.permission1",
      "com.example.permission2",
@@ -224,7 +224,7 @@ requestPermissionsFromUser(permissions: Array\<string>, requestCode: number): Pr
 
 ```ts
 import featureAbility from '@ohos.ability.featureAbility';
-var context = featureAbility.getContext();
+let context = featureAbility.getContext();
 context.requestPermissionsFromUser(
     ["com.example.permission1",
      "com.example.permission2",
@@ -257,7 +257,7 @@ getApplicationInfo(callback: AsyncCallback\<ApplicationInfo>): void
 
 ```ts
 import featureAbility from '@ohos.ability.featureAbility';
-var context = featureAbility.getContext();
+let context = featureAbility.getContext();
 context.getApplicationInfo((err, data) => {
     console.info("getApplicationInfo err: " + JSON.stringify(err) + "data: " + JSON.stringify(data));
 });
@@ -283,7 +283,7 @@ getApplicationInfo(): Promise\<ApplicationInfo>
 
 ```ts
 import featureAbility from '@ohos.ability.featureAbility';
-var context = featureAbility.getContext();
+let context = featureAbility.getContext();
 context.getApplicationInfo().then((data) => {
     console.info("getApplicationInfo data: " + JSON.stringify(data));
 });
@@ -309,7 +309,7 @@ getBundleName(callback: AsyncCallback\<string>): void
 
 ```ts
 import featureAbility from '@ohos.ability.featureAbility';
-var context = featureAbility.getContext();
+let context = featureAbility.getContext();
 context.getBundleName((err, data) => {
     console.info("getBundleName err: " + JSON.stringify(err) + "data: " + JSON.stringify(data));
 });
@@ -335,7 +335,7 @@ getBundleName(): Promise\<string>
 
 ```ts
 import featureAbility from '@ohos.ability.featureAbility';
-var context = featureAbility.getContext();
+let context = featureAbility.getContext();
 context.getBundleName().then((data) => {
     console.info("getBundleName data: " + JSON.stringify(data));
 });
@@ -359,7 +359,7 @@ getDisplayOrientation(callback: AsyncCallback\<bundle.DisplayOrientation>): void
 
 ```ts
 import featureAbility from '@ohos.ability.featureAbility';
-var context = featureAbility.getContext();
+let context = featureAbility.getContext();
 context.getDisplayOrientation((err, data) => {
     console.info("getDisplayOrientation err: " + JSON.stringify(err) + "data: " + JSON.stringify(data));
 });
@@ -383,7 +383,7 @@ getDisplayOrientation(): Promise\<bundle.DisplayOrientation>;
 
 ```ts
 import featureAbility from '@ohos.ability.featureAbility';
-var context = featureAbility.getContext();
+let context = featureAbility.getContext();
 context.getDisplayOrientation().then((data) => {
     console.info("getDisplayOrientation data: " + JSON.stringify(data));
 });
@@ -407,7 +407,7 @@ getExternalCacheDir(callback: AsyncCallback\<string>): void
 
 ```ts
 import featureAbility from '@ohos.ability.featureAbility';
-var context = featureAbility.getContext();
+let context = featureAbility.getContext();
 context.getExternalCacheDir((err, data) => {
     console.info("getExternalCacheDir err: " + JSON.stringify(err) + "data: " + JSON.stringify(data));
 });
@@ -431,7 +431,7 @@ getExternalCacheDir(): Promise\<string>;
 
 ```ts
 import featureAbility from '@ohos.ability.featureAbility';
-var context = featureAbility.getContext();
+let context = featureAbility.getContext();
 context.getExternalCacheDir().then((data) => {
     console.info("getExternalCacheDir data: " + JSON.stringify(data));
 });
@@ -457,8 +457,8 @@ setDisplayOrientation(orientation: bundle.DisplayOrientation, callback: AsyncCal
 ```ts
 import featureAbility from '@ohos.ability.featureAbility';
 import bundle from '@ohos.bundle';
-var context = featureAbility.getContext();
-var orientation = bundle.DisplayOrientation.UNSPECIFIED;
+let context = featureAbility.getContext();
+let orientation = bundle.DisplayOrientation.UNSPECIFIED;
 context.setDisplayOrientation(orientation, (err) => {
     console.info("setDisplayOrientation err: " + JSON.stringify(err));
 });
@@ -484,8 +484,8 @@ setDisplayOrientation(orientation: bundle.DisplayOrientation): Promise\<void>;
 ```ts
 import featureAbility from '@ohos.ability.featureAbility';
 import bundle from '@ohos.bundle';
-var context = featureAbility.getContext();
-var orientation = bundle.DisplayOrientation.UNSPECIFIED;
+let context = featureAbility.getContext();
+let orientation = bundle.DisplayOrientation.UNSPECIFIED;
 context.setDisplayOrientation(orientation).then((data) => {
     console.info("setDisplayOrientation data: " + JSON.stringify(data));
 });
@@ -510,8 +510,8 @@ setShowOnLockScreen(show: boolean, callback: AsyncCallback\<void>): void
 
 ```ts
 import featureAbility from '@ohos.ability.featureAbility';
-var context = featureAbility.getContext();
-var show = true;
+let context = featureAbility.getContext();
+let show = true;
 context.setShowOnLockScreen(show, (err) => {
     console.info("setShowOnLockScreen err: " + JSON.stringify(err));
 });
@@ -541,8 +541,8 @@ setShowOnLockScreen(show: boolean): Promise\<void>;
 
 ```ts
 import featureAbility from '@ohos.ability.featureAbility';
-var context = featureAbility.getContext();
-var show = true;
+let context = featureAbility.getContext();
+let show = true;
 context.setShowOnLockScreen(show).then((data) => {
     console.info("setShowOnLockScreen data: " + JSON.stringify(data));
 });
@@ -567,8 +567,8 @@ setWakeUpScreen(wakeUp: boolean, callback: AsyncCallback\<void>): void
 
 ```ts
 import featureAbility from '@ohos.ability.featureAbility';
-var context = featureAbility.getContext();
-var wakeUp = true;
+let context = featureAbility.getContext();
+let wakeUp = true;
 context.setWakeUpScreen(wakeUp, (err) => {
     console.info("setWakeUpScreen err: " + JSON.stringify(err));
 });
@@ -598,8 +598,8 @@ setWakeUpScreen(wakeUp: boolean): Promise\<void>;
 
 ```ts
 import featureAbility from '@ohos.ability.featureAbility';
-var context = featureAbility.getContext();
-var wakeUp = true;
+let context = featureAbility.getContext();
+let wakeUp = true;
 context.setWakeUpScreen(wakeUp).then((data) => {
     console.info("setWakeUpScreen data: " + JSON.stringify(data));
 });
@@ -626,7 +626,7 @@ getProcessInfo(callback: AsyncCallback\<ProcessInfo>): void
 
 ```ts
 import featureAbility from '@ohos.ability.featureAbility';
-var context = featureAbility.getContext();
+let context = featureAbility.getContext();
 context.getProcessInfo((err, data) => {
     console.info("getProcessInfo err: " + JSON.stringify(err) + "data: " + JSON.stringify(data));
 });
@@ -652,7 +652,7 @@ getProcessInfo(): Promise\<ProcessInfo>
 
 ```ts
 import featureAbility from '@ohos.ability.featureAbility';
-var context = featureAbility.getContext();
+let context = featureAbility.getContext();
 context.getProcessInfo().then((data) => {
     console.info("getProcessInfo data: " + JSON.stringify(data));
 });
@@ -680,7 +680,7 @@ getElementName(callback: AsyncCallback\<ElementName>): void
 
 ```ts
 import featureAbility from '@ohos.ability.featureAbility';
-var context = featureAbility.getContext();
+let context = featureAbility.getContext();
 context.getElementName((err, data) => {
     console.info("getElementName err: " + JSON.stringify(err) + "data: " + JSON.stringify(data));
 });
@@ -708,7 +708,7 @@ getElementName(): Promise\<ElementName>
 
 ```ts
 import featureAbility from '@ohos.ability.featureAbility';
-var context = featureAbility.getContext();
+let context = featureAbility.getContext();
 context.getElementName().then((data) => {
     console.info("getElementName data: " + JSON.stringify(data));
 });
@@ -732,7 +732,7 @@ getProcessName(callback: AsyncCallback\<string>): void
 
 ```ts
 import featureAbility from '@ohos.ability.featureAbility';
-var context = featureAbility.getContext();
+let context = featureAbility.getContext();
 context.getProcessName((err, data) => {
     console.info("getProcessName err: " + JSON.stringify(err) + "data: " + JSON.stringify(data));
 });
@@ -758,7 +758,7 @@ getProcessName(): Promise\<string>
 
 ```ts
 import featureAbility from '@ohos.ability.featureAbility';
-var context = featureAbility.getContext();
+let context = featureAbility.getContext();
 context.getProcessName().then((data) => {
     console.info("getProcessName data: " + JSON.stringify(data));
 });
@@ -784,7 +784,7 @@ getCallingBundle(callback: AsyncCallback\<string>): void
 
 ```ts
 import featureAbility from '@ohos.ability.featureAbility';
-var context = featureAbility.getContext();
+let context = featureAbility.getContext();
 context.getCallingBundle((err, data) => {
     console.info("getCallingBundle err: " + JSON.stringify(err) + "data: " + JSON.stringify(data));
 });
@@ -810,7 +810,7 @@ getCallingBundle(): Promise\<string>
 
 ```ts
 import featureAbility from '@ohos.ability.featureAbility';
-var context = featureAbility.getContext();
+let context = featureAbility.getContext();
 context.getCallingBundle().then((data) => {
     console.info("getCallingBundle data: " + JSON.stringify(data));
 });
@@ -834,7 +834,7 @@ getCacheDir(callback: AsyncCallback\<string>): void
 
 ```ts
 import featureAbility from '@ohos.ability.featureAbility';
-var context = featureAbility.getContext();
+let context = featureAbility.getContext();
 context.getCacheDir((err, data) => {
     console.info("getCacheDir err: " + JSON.stringify(err) + "data: " + JSON.stringify(data));
 });
@@ -858,7 +858,7 @@ getCacheDir(): Promise\<string>
 
 ```ts
 import featureAbility from '@ohos.ability.featureAbility';
-var context = featureAbility.getContext();
+let context = featureAbility.getContext();
 context.getCacheDir().then((data) => {
     console.info("getCacheDir data: " + JSON.stringify(data));
 });
@@ -882,7 +882,7 @@ getFilesDir(callback: AsyncCallback\<string>): void
 
 ```ts
 import featureAbility from '@ohos.ability.featureAbility';
-var context = featureAbility.getContext();
+let context = featureAbility.getContext();
 context.getFilesDir((err, data) => {
     console.info("getFilesDir err: " + JSON.stringify(err) + "data: " + JSON.stringify(data));
 });
@@ -906,7 +906,7 @@ getFilesDir(): Promise\<string>
 
 ```ts
 import featureAbility from '@ohos.ability.featureAbility';
-var context = featureAbility.getContext();
+let context = featureAbility.getContext();
 context.getFilesDir().then((data) => {
     console.info("getFilesDir data: " + JSON.stringify(data));
 });
@@ -932,7 +932,7 @@ getOrCreateDistributedDir(callback: AsyncCallback\<string>): void
 
 ```ts
 import featureAbility from '@ohos.ability.featureAbility';
-var context = featureAbility.getContext();
+let context = featureAbility.getContext();
 context.getOrCreateDistributedDir((err, data) => {
     console.info("getOrCreateDistributedDir err: " + JSON.stringify(err) + "data: " + JSON.stringify(data));
 });
@@ -958,7 +958,7 @@ getOrCreateDistributedDir(): Promise\<string>
 
 ```ts
 import featureAbility from '@ohos.ability.featureAbility';
-var context = featureAbility.getContext();
+let context = featureAbility.getContext();
 context.getOrCreateDistributedDir().then((data) => {
     console.info("getOrCreateDistributedDir data: " + JSON.stringify(data));
 });
@@ -982,7 +982,7 @@ getAppType(callback: AsyncCallback\<string>): void
 
 ```ts
 import featureAbility from '@ohos.ability.featureAbility';
-var context = featureAbility.getContext();
+let context = featureAbility.getContext();
 context.getAppType((err, data) => {
     console.info("getAppType err: " + JSON.stringify(err) + "data: " + JSON.stringify(data));
 });
@@ -1006,7 +1006,7 @@ getAppType(): Promise\<string>
 
 ```ts
 import featureAbility from '@ohos.ability.featureAbility';
-var context = featureAbility.getContext();
+let context = featureAbility.getContext();
 context.getAppType().then((data) => {
     console.info("getAppType data: " + JSON.stringify(data));
 });
@@ -1030,7 +1030,7 @@ getHapModuleInfo(callback: AsyncCallback\<HapModuleInfo>): void
 
 ```ts
 import featureAbility from '@ohos.ability.featureAbility';
-var context = featureAbility.getContext();
+let context = featureAbility.getContext();
 context.getHapModuleInfo((err, data) => {
     console.info("getHapModuleInfo err: " + JSON.stringify(err) + "data: " + JSON.stringify(data));
 });
@@ -1054,7 +1054,7 @@ getHapModuleInfo(): Promise\<HapModuleInfo>
 
 ```ts
 import featureAbility from '@ohos.ability.featureAbility';
-var context = featureAbility.getContext();
+let context = featureAbility.getContext();
 context.getHapModuleInfo().then((data) => {
     console.info("getHapModuleInfo data: " + JSON.stringify(data));
 });
@@ -1078,7 +1078,7 @@ getAppVersionInfo(callback: AsyncCallback\<AppVersionInfo>): void
 
 ```ts
 import featureAbility from '@ohos.ability.featureAbility';
-var context = featureAbility.getContext();
+let context = featureAbility.getContext();
 context.getAppVersionInfo((err, data) => {
     console.info("getAppVersionInfo err: " + JSON.stringify(err) + "data: " + JSON.stringify(data));
 });
@@ -1102,7 +1102,7 @@ getAppVersionInfo(): Promise\<AppVersionInfo>
 
 ```ts
 import featureAbility from '@ohos.ability.featureAbility';
-var context = featureAbility.getContext();
+let context = featureAbility.getContext();
 context.getAppVersionInfo().then((data) => {
     console.info("getAppVersionInfo data: " + JSON.stringify(data));
 });
@@ -1126,7 +1126,7 @@ getAbilityInfo(callback: AsyncCallback\<AbilityInfo>): void
 
 ```ts
 import featureAbility from '@ohos.ability.featureAbility';
-var context = featureAbility.getContext();
+let context = featureAbility.getContext();
 context.getAbilityInfo((err, data) => {
     console.info("getAbilityInfo err: " + JSON.stringify(err) + "data: " + JSON.stringify(data));
 });
@@ -1150,7 +1150,7 @@ getAbilityInfo(): Promise\<AbilityInfo>
 
 ```ts
 import featureAbility from '@ohos.ability.featureAbility';
-var context = featureAbility.getContext();
+let context = featureAbility.getContext();
 context.getAbilityInfo().then((data) => {
     console.info("getAbilityInfo data: " + JSON.stringify(data));
 });
@@ -1174,7 +1174,7 @@ getApplicationContext(): Context
 
 ```ts
 import featureAbility from '@ohos.ability.featureAbility';
-var context = featureAbility.getContext().getApplicationContext();
+let context = featureAbility.getContext().getApplicationContext();
 ```
 
 ## Context.isUpdatingConfigurations<sup>7+</sup>
@@ -1195,7 +1195,7 @@ isUpdatingConfigurations(callback: AsyncCallback\<boolean>): void;
 
 ```ts
 import featureAbility from '@ohos.ability.featureAbility';
-var context = featureAbility.getContext();
+let context = featureAbility.getContext();
 context.isUpdatingConfigurations((err, data) => {
     console.info("isUpdatingConfigurations err: " + JSON.stringify(err) + "data: " + JSON.stringify(data));
 });
@@ -1219,7 +1219,7 @@ isUpdatingConfigurations(): Promise\<boolean>;
 
 ```ts
 import featureAbility from '@ohos.ability.featureAbility';
-var context = featureAbility.getContext();
+let context = featureAbility.getContext();
 context.isUpdatingConfigurations().then((data) => {
     console.info("isUpdatingConfigurations data: " + JSON.stringify(data));
 });
@@ -1243,7 +1243,7 @@ printDrawnCompleted(callback: AsyncCallback\<void>): void;
 
 ```ts
 import featureAbility from '@ohos.ability.featureAbility';
-var context = featureAbility.getContext();
+let context = featureAbility.getContext();
 context.printDrawnCompleted((err) => {
     console.error('printDrawnCompleted err: ' + JSON.stringify(err));
 });
@@ -1267,7 +1267,7 @@ printDrawnCompleted(): Promise\<void>;
 
 ```ts
 import featureAbility from '@ohos.ability.featureAbility';
-var context = featureAbility.getContext();
+let context = featureAbility.getContext();
 context.printDrawnCompleted().then((data) => {
     console.info("printDrawnCompleted data: " + JSON.stringify(data));
 });

zh-cn/application-dev/reference/apis/js-apis-inner-app-processInfo.md

@@ -17,7 +17,7 @@
 ```ts
 import featureAbility from '@ohos.ability.featureAbility';
 
-var context = featureAbility.getContext();
+let context = featureAbility.getContext();
 context.getProcessInfo((err, data) => {
     if (err.code != 0) {
         console.info("getProcessInfo err: " + JSON.stringify(err) + "data: " + JSON.stringify(data));

zh-cn/application-dev/reference/apis/js-apis-inner-application-abilityDelegatorArgs.md

@@ -28,5 +28,5 @@ AbilityDelegatorArgs模块提供在应用程序执行测试用例期间，获取
 ```ts
 import AbilityDelegatorRegistry from '@ohos.app.ability.abilityDelegatorRegistry';
 
-var args = AbilityDelegatorRegistry.getArguments();
+let args = AbilityDelegatorRegistry.getArguments();
 ```

zh-cn/application-dev/reference/apis/js-apis-inner-application-abilityMonitor.md

@@ -36,12 +36,12 @@ function onAbilityCreateCallback(data) {
     console.info("onAbilityCreateCallback");
 }
 
-var monitor = {
+let monitor = {
     abilityName: "abilityname",
     onAbilityCreate: onAbilityCreateCallback
 }
 
-var abilityDelegator = AbilityDelegatorRegistry.getAbilityDelegator();
+let abilityDelegator = AbilityDelegatorRegistry.getAbilityDelegator();
 abilityDelegator.addAbilityMonitor(monitor, (err : any) => {
     console.info("addAbilityMonitor callback");
 });

zh-cn/application-dev/reference/apis/js-apis-inner-application-applicationContext.md

@@ -41,7 +41,7 @@ on(type: "abilityLifecycle", callback: AbilityLifecycleCallback): **number**;
 ```ts
 import UIAbility from '@ohos.app.ability.UIAbility';
 
-var lifecycleId;
+let lifecycleId;
 
 export default class EntryAbility extends UIAbility {
     onCreate() {
@@ -109,7 +109,7 @@ off(type: "abilityLifecycle", callbackId: **number**,  callback: AsyncCallback<*
 ```ts
 import UIAbility from '@ohos.app.ability.UIAbility';
 
-var lifecycleId;
+let lifecycleId;
 
 export default class EntryAbility extends UIAbility {
     onDestroy() {
@@ -142,7 +142,7 @@ off(type: "abilityLifecycle", callbackId: **number**): **void**;
 ```ts
 import Ability from "@ohos.app.ability.UIAbility";
 
-var lifecycleId;
+let lifecycleId;
 
 export default class MyAbility extends Ability {
     onDestroy() {
@@ -179,7 +179,7 @@ on(type: "environment", callback: EnvironmentCallback): **number**;
 ```ts
 import UIAbility from '@ohos.app.ability.UIAbility';
 
-var callbackId;
+let callbackId;
 
 export default class EntryAbility extends UIAbility {
     onCreate() {
@@ -223,7 +223,7 @@ off(type: "environment", callbackId: **number**,  callback: AsyncCallback<**void
 ```ts
 import UIAbility from '@ohos.app.ability.UIAbility';
 
-var callbackId;
+let callbackId;
 
 export default class EntryAbility extends UIAbility {
     onDestroy() {
@@ -255,7 +255,7 @@ off(type: "environment", callbackId: **number**,  callback: AsyncCallback<**void
 ```ts
 import Ability from "@ohos.app.ability.UIAbility";
 
-var callbackId;
+let callbackId;
 
 export default class MyAbility extends Ability {
     onDestroy() {

zh-cn/application-dev/reference/apis/js-apis-inner-application-extensionContext.md

@@ -90,7 +90,7 @@ export default class ServiceModel {
             return;
         }
 
-        var moduleInfo = globalThis.ExtensionContext.currentHapModuleInfo;
+        let moduleInfo = globalThis.ExtensionContext.currentHapModuleInfo;
         this.moduleName = moduleInfo.name;
         // 根据moduleName执行不同的业务逻辑，实现对不同性能设备的区分
         switch (this.moduleName) {

zh-cn/application-dev/reference/apis/js-apis-inner-application-extensionRunningInfo.md

@@ -29,7 +29,7 @@ ExtensionRunningInfo模块封装了Extension运行的相关信息，可以通过
 ```ts
 import abilityManager from '@ohos.app.ability.abilityManager'
 
-var upperLimit = 1;
+let upperLimit = 1;
 function getExtensionInfos() {
     abilityManager.getExtensionRunningInfos(upperLimit, (error, data) => {
         if (error && error.code) {

zh-cn/application-dev/reference/apis/js-apis-inner-application-missionSnapshot.md

@@ -33,7 +33,7 @@
       }
       console.log("size = " + missions.length);
       console.log("missions = " + JSON.stringify(missions));
-      var id = missions[0].missionId;
+      let id = missions[0].missionId;
 
       missionManager.getMissionSnapShot("", id, (err, snapshot) => {
         if (err.code) {

zh-cn/application-dev/reference/apis/js-apis-inner-application-serviceExtensionContext.md

@@ -68,7 +68,7 @@ startAbility(want: Want, callback: AsyncCallback<void>): void;
 **示例：**
 
   ```ts
-  var want = {
+  let want = {
     bundleName: "com.example.myapp",
     abilityName: "MyAbility"
   };
@@ -141,11 +141,11 @@ startAbility(want: Want, options?: StartOptions): Promise\<void>;
 **示例：**
 
   ```ts
-  var want = {
+  let want = {
     bundleName: "com.example.myapp",
     abilityName: "MyAbility"
   };
-  var options = {
+  let options = {
   	windowMode: 0,
   };
 
@@ -212,12 +212,12 @@ startAbility(want: Want, options: StartOptions, callback: AsyncCallback&lt;void&
 **示例：**
 
   ```ts
-  var want = {
+  let want = {
     deviceId: "",
     bundleName: "com.example.myapplication",
     abilityName: "EntryAbility"
   };
-  var options = {
+  let options = {
     windowMode: 0
   };
 
@@ -290,12 +290,12 @@ startAbilityWithAccount(want: Want, accountId: number, callback: AsyncCallback\<
 **示例：**
 
   ```ts
-  var want = {
+  let want = {
     deviceId: "",
     bundleName: "com.example.myapplication",
     abilityName: "EntryAbility"
   };
-  var accountId = 100;
+  let accountId = 100;
 
   try {
     this.context.startAbilityWithAccount(want, accountId, (error) => {
@@ -367,13 +367,13 @@ startAbilityWithAccount(want: Want, accountId: number, options: StartOptions, ca
 **示例：**
 
   ```ts
-  var want = {
+  let want = {
     deviceId: "",
     bundleName: "com.example.myapplication",
     abilityName: "EntryAbility"
   };
-  var accountId = 100;
-  var options = {
+  let accountId = 100;
+  let options = {
     windowMode: 0
   };
 
@@ -453,13 +453,13 @@ startAbilityWithAccount(want: Want, accountId: number, options?: StartOptions):
 **示例：**
 
   ```ts
-  var want = {
+  let want = {
     deviceId: "",
     bundleName: "com.example.myapplication",
     abilityName: "EntryAbility"
   };
-  var accountId = 100;
-  var options = {
+  let accountId = 100;
+  let options = {
     windowMode: 0
   };
 
@@ -518,7 +518,7 @@ startServiceExtensionAbility(want: Want, callback: AsyncCallback\<void>): void;
 **示例：**
 
   ```ts
-  var want = {
+  let want = {
     deviceId: "",
     bundleName: "com.example.myapplication",
     abilityName: "EntryAbility"
@@ -584,7 +584,7 @@ startServiceExtensionAbility(want: Want): Promise\<void>;
 **示例：**
 
   ```ts
-  var want = {
+  let want = {
     deviceId: "",
     bundleName: "com.example.myapplication",
     abilityName: "EntryAbility"
@@ -650,12 +650,12 @@ startServiceExtensionAbilityWithAccount(want: Want, accountId: number, callback:
 **示例：**
 
   ```ts
-  var want = {
+  let want = {
     deviceId: "",
     bundleName: "com.example.myapplication",
     abilityName: "EntryAbility"
   };
-  var accountId = 100;
+  let accountId = 100;
 
   try {
     this.context.startServiceExtensionAbilityWithAccount(want, accountId, (error) => {
@@ -721,12 +721,12 @@ startServiceExtensionAbilityWithAccount(want: Want, accountId: number): Promise\
 **示例：**
 
   ```ts
-  var want = {
+  let want = {
     deviceId: "",
     bundleName: "com.example.myapplication",
     abilityName: "EntryAbility"
   };
-  var accountId = 100;
+  let accountId = 100;
 
   try {
     this.context.startServiceExtensionAbilityWithAccount(want, accountId)
@@ -780,7 +780,7 @@ stopServiceExtensionAbility(want: Want, callback: AsyncCallback\<void>): void;
 **示例：**
 
   ```ts
-  var want = {
+  let want = {
     deviceId: "",
     bundleName: "com.example.myapplication",
     abilityName: "EntryAbility"
@@ -843,7 +843,7 @@ stopServiceExtensionAbility(want: Want): Promise\<void>;
 **示例：**
 
   ```ts
-  var want = {
+  let want = {
     deviceId: "",
     bundleName: "com.example.myapplication",
     abilityName: "EntryAbility"
@@ -905,12 +905,12 @@ stopServiceExtensionAbilityWithAccount(want: Want, accountId: number, callback:
 **示例：**
 
   ```ts
-  var want = {
+  let want = {
     deviceId: "",
     bundleName: "com.example.myapplication",
     abilityName: "EntryAbility"
   };
-  var accountId = 100;
+  let accountId = 100;
 
   try {
     this.context.stopServiceExtensionAbilityWithAccount(want, accountId, (error) => {
@@ -973,12 +973,12 @@ stopServiceExtensionAbilityWithAccount(want: Want, accountId: number): Promise\<
 **示例：**
 
   ```ts
-  var want = {
+  let want = {
     deviceId: "",
     bundleName: "com.example.myapplication",
     abilityName: "EntryAbility"
   };
-  var accountId = 100;
+  let accountId = 100;
 
   try {
     this.context.stopServiceExtensionAbilityWithAccount(want, accountId)
@@ -1118,17 +1118,17 @@ connectServiceExtensionAbility(want: Want, options: ConnectOptions): number;
 **示例：**
 
   ```ts
-  var want = {
+  let want = {
     bundleName: "com.example.myapp",
     abilityName: "MyAbility"
   };
-  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) {
@@ -1178,19 +1178,19 @@ connectServiceExtensionAbilityWithAccount(want: Want, accountId: number, options
 **示例：**
 
   ```ts
-  var want = {
+  let want = {
     deviceId: "",
     bundleName: "com.example.myapplication",
     abilityName: "EntryAbility"
   };
-  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) {
@@ -1232,7 +1232,7 @@ disconnectServiceExtensionAbility(connection: number, callback:AsyncCallback&lt;
 
   ```ts
   // connection为connectServiceExtensionAbility中的返回值
-  var connection = 1;
+  let connection = 1;
 
   try {
     this.context.disconnectServiceExtensionAbility(connection, (error) => {
@@ -1289,7 +1289,7 @@ disconnectServiceExtensionAbility(connection: number): Promise&lt;void&gt;;
 
   ```ts
   // connection为connectServiceExtensionAbility中的返回值
-  var connection = 1;
+  let connection = 1;
 
   try {
     this.context.disconnectServiceExtensionAbility(connection)
@@ -1355,10 +1355,10 @@ 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: "EntryAbility",
@@ -1386,10 +1386,10 @@ 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: "EntryAbility",