http: replace vars with lets and consts in lib/_http_agent.js

PR-URL: #30301
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Trivikram Kamat <trivikr.dev@gmail.com>
Reviewed-By: Ruben Bridgewater <ruben@bridgewater.de>
Reviewed-By: Сковорода Никита Андреевич <chalkerx@gmail.com>
Reviewed-By: Gireesh Punathil <gpunathi@in.ibm.com>

Author: palmires

lib/_http_agent.js

@@ -91,14 +91,14 @@ function Agent(options) {
 }else{
 // If there are no pending requests, then put it in
 // the freeSockets pool, but only if we're allowed to do so.
-varreq=socket._httpMessage;
+constreq=socket._httpMessage;
 if(req&&
 req.shouldKeepAlive&&
 socket.writable&&
 this.keepAlive){
-varfreeSockets=this.freeSockets[name];
-varfreeLen=freeSockets ? freeSockets.length : 0;
-varcount=freeLen;
+letfreeSockets=this.freeSockets[name];
+constfreeLen=freeSockets ? freeSockets.length : 0;
+letcount=freeLen;
 if(this.sockets[name])
 count+=this.sockets[name].length;
 
@@ -130,7 +130,7 @@ Agent.prototype.createConnection = net.createConnection;
 
 // Get the key for a given set of request options
 Agent.prototype.getName=functiongetName(options){
-varname=options.host||'localhost';
+letname=options.host||'localhost';
 
 name+=':';
 if(options.port)
@@ -179,7 +179,7 @@ Agent.prototype.addRequest = function addRequest(req, options, port/* legacy */,
 
 if(freeLen){
 // We have a free socket, so use that.
-varsocket=this.freeSockets[name].shift();
+constsocket=this.freeSockets[name].shift();
 // Guard against an uninitialized or user supplied Socket.
 consthandle=socket._handle;
 if(handle&&typeofhandle.asyncReset==='function'){
@@ -222,7 +222,7 @@ Agent.prototype.createSocket = function createSocket(req, options, cb) {
 
 debug('createConnection',name,options);
 options.encoding=null;
-varcalled=false;
+letcalled=false;
 
 constoncreate=(err,s)=>{
 if(called)
@@ -308,11 +308,11 @@ Agent.prototype.removeSocket = function removeSocket(s, options) {
 if(!s.writable)
 sets.push(this.freeSockets);
 
-for(varsk=0;sk<sets.length;sk++){
-varsockets=sets[sk];
+for(letsk=0;sk<sets.length;sk++){
+constsockets=sets[sk];
 
 if(sockets[name]){
-varindex=sockets[name].indexOf(s);
+constindex=sockets[name].indexOf(s);
 if(index!==-1){
 sockets[name].splice(index,1);
 // Don't leak
@@ -345,12 +345,12 @@ Agent.prototype.reuseSocket = function reuseSocket(socket, req) {
 
 Agent.prototype.destroy=functiondestroy(){
 constsets=[this.freeSockets,this.sockets];
-for(vars=0;s<sets.length;s++){
-varset=sets[s];
-varkeys=Object.keys(set);
-for(varv=0;v<keys.length;v++){
-varsetName=set[keys[v]];
-for(varn=0;n<setName.length;n++){
+for(lets=0;s<sets.length;s++){
+constset=sets[s];
+constkeys=Object.keys(set);
+for(letv=0;v<keys.length;v++){
+constsetName=set[keys[v]];
+for(letn=0;n<setName.length;n++){
 setName[n].destroy();
 }
 }