net: replaced vars to lets and consts

PR-URL: #30287
Reviewed-By: Сковорода Никита Андреевич <chalkerx@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Anto Aravinth <anto.aravinth.cse@gmail.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Gireesh Punathil <gpunathi@in.ibm.com>
Reviewed-By: Ruben Bridgewater <ruben@bridgewater.de>
Reviewed-By: Trivikram Kamat <trivikr.dev@gmail.com>

Author: alexahdp

lib/_http_client.js

@@ -110,7 +110,7 @@ function ClientRequest(input, options, cb) {
 options=Object.assign(input||{},options);
 }
 
-varagent=options.agent;
+letagent=options.agent;
 constdefaultAgent=options._defaultAgent||Agent.globalAgent;
 if(agent===false){
 agent=newdefaultAgent.constructor();
@@ -128,11 +128,11 @@ function ClientRequest(input, options, cb) {
 this.agent=agent;
 
 constprotocol=options.protocol||defaultAgent.protocol;
-varexpectedProtocol=defaultAgent.protocol;
+letexpectedProtocol=defaultAgent.protocol;
 if(this.agent&&this.agent.protocol)
 expectedProtocol=this.agent.protocol;
 
-varpath;
+letpath;
 if(options.path){
 path=String(options.path);
 if(INVALID_PATH_REGEX.test(path))
@@ -157,7 +157,7 @@ function ClientRequest(input, options, cb) {
 if(options.timeout!==undefined)
 this.timeout=getTimerDuration(options.timeout,'timeout');
 
-varmethod=options.method;
+letmethod=options.method;
 constmethodIsString=(typeofmethod==='string');
 if(method!==null&&method!==undefined&&!methodIsString){
 thrownewERR_INVALID_ARG_TYPE('method','string',method);
@@ -196,7 +196,7 @@ function ClientRequest(input, options, cb) {
 this.parser=null;
 this.maxHeadersCount=null;
 
-varcalled=false;
+letcalled=false;
 
 if(this.agent){
 // If there is an agent we should default to Connection:keep-alive,
@@ -215,20 +215,20 @@ function ClientRequest(input, options, cb) {
 constheadersArray=Array.isArray(options.headers);
 if(!headersArray){
 if(options.headers){
-varkeys=Object.keys(options.headers);
-for(vari=0;i<keys.length;i++){
-varkey=keys[i];
+constkeys=Object.keys(options.headers);
+for(leti=0;i<keys.length;i++){
+constkey=keys[i];
 this.setHeader(key,options.headers[key]);
 }
 }
 
 if(host&&!this.getHeader('host')&&setHost){
-varhostHeader=host;
+lethostHeader=host;
 
 // For the Host header, ensure that IPv6 addresses are enclosed
 // in square brackets, as defined by URI formatting
 // https://tools.ietf.org/html/rfc3986#section-3.2.2
-varposColon=hostHeader.indexOf(':');
+constposColon=hostHeader.indexOf(':');
 if(posColon!==-1&&
 hostHeader.includes(':',posColon+1)&&
 hostHeader.charCodeAt(0)!==91/* '[' */){
@@ -463,8 +463,8 @@ function socketOnData(d) {
 req.emit('error',ret);
 }elseif(parser.incoming&&parser.incoming.upgrade){
 // Upgrade (if status code 101) or CONNECT
-varbytesParsed=ret;
-varres=parser.incoming;
+constbytesParsed=ret;
+constres=parser.incoming;
 req.res=res;
 
 socket.removeListener('data',socketOnData);
@@ -473,9 +473,9 @@ function socketOnData(d) {
 parser.finish();
 freeParser(parser,req,socket);
 
-varbodyHead=d.slice(bytesParsed,d.length);
+constbodyHead=d.slice(bytesParsed,d.length);
 
-vareventName=req.method==='CONNECT' ? 'connect' : 'upgrade';
+consteventName=req.method==='CONNECT' ? 'connect' : 'upgrade';
 if(req.listenerCount(eventName)>0){
 req.upgradeOrConnect=true;