!9651 Modify the var in the util, uri, url, xml, process module use cases in...

!9651 Modify the var in the util, uri, url, xml, process module use cases in the docs document to let
Merge pull request !9651 from 毕虎/master

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

@@ -63,8 +63,8 @@ wait(): Promise<number>
 **示例：**
 
 ```js
-var child = process.runCmd('ls');
-var result = child.wait();
+let child = process.runCmd('ls');
+let result = child.wait();
 result.then(val=>{
     console.log("result = " + val);
 })
@@ -90,8 +90,8 @@ getOutput(): Promise<Uint8Array>
 **示例：**
 
 ```js
-var child = process.runCmd('ls');
-var result = child.wait();
+let child = process.runCmd('ls');
+let result = child.wait();
 child.getOutput().then(val=>{
     console.log("child.getOutput = " + val);
 })
@@ -117,8 +117,8 @@ getErrorOutput(): Promise<Uint8Array>
 **示例：**
 
 ```js
-var child = process.runCmd('madir test.text');
-var result = child.wait();
+let child = process.runCmd('madir test.text');
+let result = child.wait();
 child.getErrorOutput().then(val=>{
     console.log("child.getErrorOutput= " + val);
 })
@@ -138,7 +138,7 @@ close(): void
 **示例：**
 
 ```js
-var child = process.runCmd('sleep 5; ls');
+let child = process.runCmd('sleep 5; ls');
 child.close();
 ```
 
@@ -162,7 +162,7 @@ kill(signal: number | string): void
 **示例：**
 
 ```js
-var child = process.runCmd('sleep 5; ls');
+let child = process.runCmd('sleep 5; ls');
 child.kill(9);
 ```
 
@@ -184,7 +184,7 @@ isIsolatedProcess(): boolean
 **示例：**
 
 ```js
-var result = process.isIsolatedProcess();
+let result = process.isIsolatedProcess();
 ```
 
 
@@ -211,7 +211,7 @@ isAppUid(v: number): boolean
 **示例：**
 
 ```js
-var result = process.isAppUid(688);
+let result = process.isAppUid(688);
 ```
 
 
@@ -232,7 +232,7 @@ is64Bit(): boolean
 **示例：**
 
 ```js
-var result = process.is64Bit();
+let result = process.is64Bit();
 ```
 
 
@@ -259,7 +259,7 @@ getUidForName(v: string): number
 **示例：**
 
 ```js
-var pres = process.getUidForName("tool")
+let pres = process.getUidForName("tool")
 ```
 
 
@@ -286,8 +286,8 @@ getThreadPriority(v: number): number
 **示例：**
 
 ```js
-var tid = process.tid;
-var pres = process.getThreadPriority(tid);
+let tid = process.tid;
+let pres = process.getThreadPriority(tid);
 ```
 
 
@@ -308,7 +308,7 @@ getStartRealtime(): number
 **示例：**
 
 ```js
-var realtime = process.getStartRealtime();
+let realtime = process.getStartRealtime();
 ```
 
 ## process.getPastCpuTime<sup>8+</sup>
@@ -328,7 +328,7 @@ getPastCpuTime(): number
 **示例：**
 
 ```js
-var result = process.getPastCpuTime() ;
+let result = process.getPastCpuTime() ;
 ```
 
 
@@ -355,8 +355,8 @@ getSystemConfig(name: number): number
 **示例：**
 
 ```js
-var _SC_ARG_MAX = 0
-var pres = process.getSystemConfig(_SC_ARG_MAX)
+let _SC_ARG_MAX = 0
+let pres = process.getSystemConfig(_SC_ARG_MAX)
 ```
 
 
@@ -383,7 +383,7 @@ getEnvironmentVar(name: string): string
 **示例：**
 
 ```js
-var pres = process.getEnvironmentVar("PATH")
+let pres = process.getEnvironmentVar("PATH")
 ```
 
 
@@ -421,8 +421,8 @@ runCmd(command: string, options?: { timeout?: number, killSignal?: number | stri
 **示例：**
 
 ```js
-var child = process.runCmd('ls', { maxBuffer : 2 });
-var result = child.wait();
+let child = process.runCmd('ls', { maxBuffer : 2 });
+let result = child.wait();
 child.getOutput.then(val=>{
     console.log("child.getOutput = " + val);
 })
@@ -504,7 +504,7 @@ off(type: string): boolean
 process.on("data", (e)=>{
     console.log("data callback");
 })
-var result = process.off("data");
+let result = process.off("data");
 ```
 
 
@@ -544,7 +544,7 @@ cwd(): string
 **示例：**
 
 ```js
-var path = process.cwd();
+let path = process.cwd();
 ```
 
 
@@ -588,7 +588,7 @@ uptime(): number
 **示例：**
 
 ```js
-var time = process.uptime();
+let time = process.uptime();
 ```
 
 
@@ -616,6 +616,6 @@ kill(signal: number, pid: number): boolean
 **示例：**
 
 ```js
-var pres = process.pid
-var result = process.kill(28, pres)
+let pres = process.pid
+let result = process.kill(28, pres)
 ```

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

@@ -46,7 +46,7 @@ constructor是URI的构造函数。
 **示例：**
 
 ```js
-var mm = 'http://username:password@host:8080/directory/file?foo=1&bar=2#fragment';
+let mm = 'http://username:password@host:8080/directory/file?foo=1&bar=2#fragment';
 new uri.URI(mm); // Output 'http://username:password@host:8080/directory/file?foo=1&bar=2#fragment';
 ```
 ```js

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

@@ -30,11 +30,11 @@ URLSearchParams的构造函数。
 **示例：**
 
 ```js
-var objectParams = new Url.URLSearchParams([ ['user1', 'abc1'], ['query2', 'first2'], ['query3', 'second3'] ]);
-var objectParams1 = new Url.URLSearchParams({"fod" : '1' , "bard" : '2'});
-var objectParams2 = new Url.URLSearchParams('?fod=1&bard=2');
-var urlObject = new Url.URL('https://developer.mozilla.org/?fod=1&bard=2');
-var params = new Url.URLSearchParams(urlObject.search);
+let objectParams = new Url.URLSearchParams([ ['user1', 'abc1'], ['query2', 'first2'], ['query3', 'second3'] ]);
+let objectParams1 = new Url.URLSearchParams({"fod" : '1' , "bard" : '2'});
+let objectParams2 = new Url.URLSearchParams('?fod=1&bard=2');
+let urlObject = new Url.URL('https://developer.mozilla.org/?fod=1&bard=2');
+let params = new Url.URLSearchParams(urlObject.search);
 ```
 
 
@@ -132,7 +132,7 @@ entries(): IterableIterator<[string, string]>
 **示例：**
 
 ```js
-var searchParamsObject = new Url.URLSearchParams("keyName1=valueName1&keyName2=valueName2"); 
+let searchParamsObject = new Url.URLSearchParams("keyName1=valueName1&keyName2=valueName2"); 
 for (var pair of searchParamsObject .entries()) { // Show keyName/valueName pairs
     console.log(pair[0]+ ', '+ pair[1]);
 }
@@ -196,9 +196,9 @@ get(name: string): string | null
 **示例：**
 
 ```js
-var paramsOject = new Url.URLSearchParams('name=Jonathan&age=18'); 
-var name = paramsOject.get("name"); // is the string "Jonathan" 
-var age = parseInt(paramsOject.get("age"), 10); // is the number 18
+let paramsOject = new Url.URLSearchParams('name=Jonathan&age=18'); 
+let name = paramsOject.get("name"); // is the string "Jonathan" 
+let age = parseInt(paramsOject.get("age"), 10); // is the number 18
 ```
 
 
@@ -266,7 +266,7 @@ sort(): void
 **示例：**
 
 ```js
-var searchParamsObject = new Url.URLSearchParams("c=3&a=9&b=4&d=2"); // Create a test URLSearchParams object
+let searchParamsObject = new Url.URLSearchParams("c=3&a=9&b=4&d=2"); // Create a test URLSearchParams object
 searchParamsObject.sort(); // Sort the key/value pairs
 console.log(searchParamsObject.toString()); // Display the sorted query string // Output a=9&b=2&c=3&d=4
 ```
@@ -289,7 +289,7 @@ keys(): IterableIterator&lt;string&gt;
 **示例：**
 
 ```js
-var searchParamsObject = new Url.URLSearchParams("key1=value1&key2=value2"); // Create a URLSearchParamsObject object for testing
+let searchParamsObject = new Url.URLSearchParams("key1=value1&key2=value2"); // Create a URLSearchParamsObject object for testing
 for (var key of searchParamsObject .keys()) { // Output key-value pairs
     console.log(key);
 }
@@ -313,7 +313,7 @@ values(): IterableIterator&lt;string&gt;
 **示例：**
 
 ```js
-var searchParams = new Url.URLSearchParams("key1=value1&key2=value2"); // Create a URLSearchParamsObject object for testing
+let searchParams = new Url.URLSearchParams("key1=value1&key2=value2"); // Create a URLSearchParamsObject object for testing
 for (var value of searchParams.values()) {
     console.log(value);
 }
@@ -408,11 +408,11 @@ URL的构造函数。
 **示例：**
 
 ```js
-var mm = 'http://username:password@host:8080';
-var a = new Url.URL("/", mm); // Output 'http://username:password@host:8080/';
-var b = new Url.URL(mm); // Output 'http://username:password@host:8080/';
+let mm = 'http://username:password@host:8080';
+let a = new Url.URL("/", mm); // Output 'http://username:password@host:8080/';
+let b = new Url.URL(mm); // Output 'http://username:password@host:8080/';
 new Url.URL('path/path1', b); // Output 'http://username:password@host:8080/path/path1';
-var c = new Url.URL('/path/path1', b);  // Output 'http://username:password@host:8080/path/path1'; 
+let c = new Url.URL('/path/path1', b);  // Output 'http://username:password@host:8080/path/path1'; 
 new Url.URL('/path/path1', c); // Output 'http://username:password@host:8080/path/path1';
 new Url.URL('/path/path1', a); // Output 'http://username:password@host:8080/path/path1';
 new Url.URL('/path/path1', "https://www.exampleUrl/fr-FR/toto"); // Output https://www.exampleUrl/path/path1

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

@@ -31,9 +31,9 @@ XmlSerializer的构造函数。
 **示例：**
 
 ```js
-var arrayBuffer = new ArrayBuffer(1024);
-var bufView = new DataView(arrayBuffer);
-var thatSer = new xml.XmlSerializer(bufView);
+let arrayBuffer = new ArrayBuffer(1024);
+let bufView = new DataView(arrayBuffer);
+let thatSer = new xml.XmlSerializer(bufView);
 ```
 
 
@@ -55,9 +55,9 @@ setAttributes(name: string, value: string): void
 **示例：**
 
 ```js
-var arrayBuffer = new ArrayBuffer(1024);
-var bufView = new DataView(arrayBuffer);
-var thatSer = new xml.XmlSerializer(bufView);
+let arrayBuffer = new ArrayBuffer(1024);
+let bufView = new DataView(arrayBuffer);
+let thatSer = new xml.XmlSerializer(bufView);
 thatSer.setAttributes("importance", "high");  
 ```
 
@@ -79,9 +79,9 @@ addEmptyElement(name: string): void
 **示例：**
 
 ```js
-var arrayBuffer = new ArrayBuffer(1024);
-var bufView = new DataView(arrayBuffer);
-var thatSer = new xml.XmlSerializer(bufView);
+let arrayBuffer = new ArrayBuffer(1024);
+let bufView = new DataView(arrayBuffer);
+let thatSer = new xml.XmlSerializer(bufView);
 thatSer.addEmptyElement("b"); // => <b/>
 ```
 
@@ -97,9 +97,9 @@ setDeclaration(): void
 **示例：**
 
 ```js
-var arrayBuffer = new ArrayBuffer(1024);
-var bufView = new DataView(arrayBuffer);
-var thatSer = new xml.XmlSerializer(bufView);
+let arrayBuffer = new ArrayBuffer(1024);
+let bufView = new DataView(arrayBuffer);
+let thatSer = new xml.XmlSerializer(bufView);
 thatSer.setDeclaration() // => <?xml version="1.0" encoding="utf-8"?>;
 ```
 
@@ -121,8 +121,8 @@ startElement(name: string): void
 **示例：**
 
 ```js
-var arrayBuffer = new ArrayBuffer(1024);
-var thatSer = new xml.XmlSerializer(arrayBuffer);
+let arrayBuffer = new ArrayBuffer(1024);
+let thatSer = new xml.XmlSerializer(arrayBuffer);
 thatSer.startElement("notel");
 thatSer.endElement();// => '<notel/>';
 ```
@@ -139,9 +139,9 @@ endElement(): void
 **示例：**
 
 ```js
-var arrayBuffer = new ArrayBuffer(1024);
-var bufView = new DataView(arrayBuffer);
-var thatSer = new xml.XmlSerializer(bufView);
+let arrayBuffer = new ArrayBuffer(1024);
+let bufView = new DataView(arrayBuffer);
+let thatSer = new xml.XmlSerializer(bufView);
 thatSer.setNamespace("h", "http://www.w3.org/TR/html4/");
 thatSer.startElement("table");
 thatSer.setAttributes("importance", "high");
@@ -168,8 +168,8 @@ setNamespace(prefix: string, namespace: string): void
 **示例：**
 
 ```js
-var arrayBuffer = new ArrayBuffer(1024);
-var thatSer = new xml.XmlSerializer(arrayBuffer);
+let arrayBuffer = new ArrayBuffer(1024);
+let thatSer = new xml.XmlSerializer(arrayBuffer);
 thatSer.setDeclaration();
 thatSer.setNamespace("h", "http://www.w3.org/TR/html4/");
 thatSer.startElement("note");
@@ -193,8 +193,8 @@ setComment(text: string): void
 **示例：**
 
 ```js
-var arrayBuffer = new ArrayBuffer(1024);
-var thatSer = new xml.XmlSerializer(arrayBuffer);
+let arrayBuffer = new ArrayBuffer(1024);
+let thatSer = new xml.XmlSerializer(arrayBuffer);
 thatSer.startElement("note");
 thatSer.setComment("Hi!");
 thatSer.endElement(); // => '<note>\r\n  <!--Hi!-->\r\n</note>';
@@ -218,8 +218,8 @@ setCDATA(text: string): void
 **示例：**
 
 ```js
-var arrayBuffer = new ArrayBuffer(1028);
-var thatSer = new xml.XmlSerializer(arrayBuffer);
+let arrayBuffer = new ArrayBuffer(1028);
+let thatSer = new xml.XmlSerializer(arrayBuffer);
 thatSer.setCDATA('root SYSTEM') // => '<![CDATA[root SYSTEM]]>';
 ```
 
@@ -241,8 +241,8 @@ setText(text: string): void
 **示例：**
 
 ```js
-var arrayBuffer = new ArrayBuffer(1024);
-var thatSer = new xml.XmlSerializer(arrayBuffer);
+let arrayBuffer = new ArrayBuffer(1024);
+let thatSer = new xml.XmlSerializer(arrayBuffer);
 thatSer.startElement("note");
 thatSer.setAttributes("importance", "high");
 thatSer.setText("Happy1");
@@ -267,8 +267,8 @@ setDocType(text: string): void
 **示例：**
 
 ```js
-var arrayBuffer = new ArrayBuffer(1024);
-var thatSer = new xml.XmlSerializer(arrayBuffer);
+let arrayBuffer = new ArrayBuffer(1024);
+let thatSer = new xml.XmlSerializer(arrayBuffer);
 thatSer.setDocType('root SYSTEM'); // => '<!DOCTYPE root SYSTEM>';
 ```
 
@@ -294,20 +294,20 @@ constructor(buffer: ArrayBuffer | DataView, encoding?: string)
 **示例：**
 
 ```js
-var strXml =
+let strXml =
             '<?xml version="1.0" encoding="utf-8"?>' +
             '<note importance="high" logged="true">' +
             '    <title>Happy</title>' +
             '    <todo>Work</todo>' +
             '    <todo>Play</todo>' +
             '</note>';
-var arrayBuffer = new ArrayBuffer(strXml.length);
-var bufView = new Uint8Array(arrayBuffer);
-var strLen = strXml.length;
+let arrayBuffer = new ArrayBuffer(strXml.length);
+let bufView = new Uint8Array(arrayBuffer);
+let strLen = strXml.length;
 for (var i = 0; i < strLen; ++i) {
     bufView[i] = strXml.charCodeAt(i);//设置arraybuffer方式
 }
-var that = new xml.XmlPullParser(arrayBuffer);
+let that = new xml.XmlPullParser(arrayBuffer);
 ```
 
 
@@ -328,30 +328,30 @@ parse(option: ParseOptions): void
 **示例：**
 
 ```js
-var strXml =
+let strXml =
             '<?xml version="1.0" encoding="utf-8"?>' +
             '<note importance="high" logged="true">' +
             '    <title>Happy</title>' +
             '    <todo>Work</todo>' +
             '    <todo>Play</todo>' +
             '</note>';
-var arrayBuffer = new ArrayBuffer(strXml.length);
-var bufView = new Uint8Array(arrayBuffer);
-var strLen = strXml.length;
+let arrayBuffer = new ArrayBuffer(strXml.length);
+let bufView = new Uint8Array(arrayBuffer);
+let strLen = strXml.length;
 for (var i = 0; i < strLen; ++i) {
     bufView[i] = strXml.charCodeAt(i);
 }
-var that = new xml.XmlPullParser(arrayBuffer);
-var arrTag = {};
-var str = "";
-var i = 0;
+let that = new xml.XmlPullParser(arrayBuffer);
+let arrTag = {};
+let str = "";
+let i = 0;
 function func(key, value){
     arrTag[i] = 'key:'+key+' value:'+ value.getDepth();
     str += arrTag[i];
     i++;
     return true; // Determines whether to continuely parse, which is used to continue or terminate parsing.
 }
-var options = {supportDoctype:true, ignoreNameSpace:true, tokenValueCallbackFunction:func}
+let options = {supportDoctype:true, ignoreNameSpace:true, tokenValueCallbackFunction:func}
 that.parse(options);
 console.log(str);
 // 输出: