http: http_outgoing rename var to let and const

PR-URL: #30284
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Сковорода Никита Андреевич <chalkerx@gmail.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Ruben Bridgewater <ruben@bridgewater.de>
Reviewed-By: Gireesh Punathil <gpunathi@in.ibm.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Trivikram Kamat <trivikr.dev@gmail.com>

Author: telenord

lib/_http_outgoing.js

@@ -168,7 +168,7 @@ ObjectDefineProperty(OutgoingMessage.prototype, '_headers', {
 constkeys=ObjectKeys(val);
 // Retain for(;;) loop for performance reasons
 // Refs: https://github.com/nodejs/node/pull/30958
-for(vari=0;i<keys.length;++i){
+for(leti=0;i<keys.length;++i){
 constname=keys[i];
 headers[name.toLowerCase()]=[name,val[name]];
 }
@@ -184,7 +184,7 @@ ObjectDefineProperty(OutgoingMessage.prototype, '_headerNames', {
 constkeys=ObjectKeys(headers);
 // Retain for(;;) loop for performance reasons
 // Refs: https://github.com/nodejs/node/pull/30958
-for(vari=0;i<keys.length;++i){
+for(leti=0;i<keys.length;++i){
 constkey=keys[i];
 constval=headers[key][0];
 out[key]=val;
@@ -201,7 +201,7 @@ ObjectDefineProperty(OutgoingMessage.prototype, '_headerNames', {
 constkeys=ObjectKeys(val);
 // Retain for(;;) loop for performance reasons
 // Refs: https://github.com/nodejs/node/pull/30958
-for(vari=0;i<keys.length;++i){
+for(leti=0;i<keys.length;++i){
 constheader=headers[keys[i]];
 if(header)
 header[0]=val[keys[i]];
@@ -223,7 +223,7 @@ OutgoingMessage.prototype._renderHeaders = function _renderHeaders() {
 constkeys=ObjectKeys(headersMap);
 // Retain for(;;) loop for performance reasons
 // Refs: https://github.com/nodejs/node/pull/30958
-for(vari=0,l=keys.length;i<l;i++){
+for(leti=0,l=keys.length;i<l;i++){
 constkey=keys[i];
 headers[headersMap[key][0]]=headersMap[key][1];
 }
@@ -288,7 +288,7 @@ OutgoingMessage.prototype._send = function _send(data, encoding, callback) {
 (encoding==='utf8'||encoding==='latin1'||!encoding)){
 data=this._header+data;
 }else{
-varheader=this._header;
+constheader=this._header;
 if(this.outputData.length===0){
 this.outputData=[{
 data: header,
@@ -459,7 +459,7 @@ function processHeader(self, state, key, value, validate) {
 if(value.length<2||!isCookieField(key)){
 // Retain for(;;) loop for performance reasons
 // Refs: https://github.com/nodejs/node/pull/30958
-for(vari=0;i<value.length;i++)
+for(leti=0;i<value.length;i++)
 storeHeader(self,state,key,value[i],validate);
 return;
 }
@@ -562,7 +562,7 @@ OutgoingMessage.prototype.getHeaders = function getHeaders() {
 constkeys=ObjectKeys(headers);
 // Retain for(;;) loop for performance reasons
 // Refs: https://github.com/nodejs/node/pull/30958
-for(vari=0;i<keys.length;++i){
+for(leti=0;i<keys.length;++i){
 constkey=keys[i];
 constval=headers[key][1];
 ret[key]=val;
@@ -667,8 +667,9 @@ function write_(msg, chunk, encoding, callback, fromEnd) {
 process.nextTick(connectionCorkNT,msg,msg.connection);
 }
 
-varlen,ret;
+letret;
 if(msg.chunkedEncoding&&chunk.length!==0){
+letlen;
 if(typeofchunk==='string')
 len=Buffer.byteLength(chunk,encoding);
 else
@@ -702,11 +703,11 @@ OutgoingMessage.prototype.addTrailers = function addTrailers(headers) {
 this._trailer='';
 constkeys=ObjectKeys(headers);
 constisArray=ArrayIsArray(headers);
-varfield,value;
 // Retain for(;;) loop for performance reasons
 // Refs: https://github.com/nodejs/node/pull/30958
-for(vari=0,l=keys.length;i<l;i++){
-varkey=keys[i];
+for(leti=0,l=keys.length;i<l;i++){
+letfield,value;
+constkey=keys[i];
 if(isArray){
 field=headers[key][0];
 value=headers[key][1];
@@ -823,11 +824,10 @@ OutgoingMessage.prototype._finish = function _finish() {
 // to attempt to flush any pending messages out to the socket.
 OutgoingMessage.prototype._flush=function_flush(){
 constsocket=this.socket;
-varret;
 
 if(socket&&socket.writable){
 // There might be remaining data in this.output; write it out
-ret=this._flushOutput(socket);
+constret=this._flushOutput(socket);
 
 if(this.finished){
 // This is a queue to the server or client to bring in the next this.
@@ -854,7 +854,7 @@ OutgoingMessage.prototype._flushOutput = function _flushOutput(socket) {
 letret;
 // Retain for(;;) loop for performance reasons
 // Refs: https://github.com/nodejs/node/pull/30958
-for(vari=0;i<outputLength;i++){
+for(leti=0;i<outputLength;i++){
 const{ data, encoding, callback }=outputData[i];
 ret=socket.write(data,encoding,callback);
 }