benchmark: use let/const instead of var in buffers

PR-URL: #30945 Reviewed-By: Ruben Bridgewater <[email protected]> Reviewed-By: Trivikram Kamat <[email protected]>

Author: dnlup

benchmark/buffers/buffer-bytelength.js

@@ -16,8 +16,8 @@ const chars = [
 ];
 
 functionmain({ n, len, encoding }){
-varstrings=[];
-varresults=[len*16];
+letstrings=[];
+letresults=[len*16];
 if(encoding==='buffer'){
 strings=[Buffer.alloc(len*16,'a')];
 }else{

benchmark/buffers/buffer-compare-instance-method.js

@@ -12,47 +12,46 @@ function main({n, size, args }){
 constb1=Buffer.alloc(size,'a');
 constb0Len=b0.length;
 constb1Len=b1.length;
-vari;
 
 b1[size-1]='b'.charCodeAt(0);
 
 switch(args){
 case2:
 b0.compare(b1,0);
 bench.start();
-for(i=0;i<n;i++){
+for(leti=0;i<n;i++){
 b0.compare(b1,0);
 }
 bench.end(n);
 break;
 case3:
 b0.compare(b1,0,b1Len);
 bench.start();
-for(i=0;i<n;i++){
+for(leti=0;i<n;i++){
 b0.compare(b1,0,b1Len);
 }
 bench.end(n);
 break;
 case4:
 b0.compare(b1,0,b1Len,0);
 bench.start();
-for(i=0;i<n;i++){
+for(leti=0;i<n;i++){
 b0.compare(b1,0,b1Len,0);
 }
 bench.end(n);
 break;
 case5:
 b0.compare(b1,0,b1Len,0,b0Len);
 bench.start();
-for(i=0;i<n;i++){
+for(leti=0;i<n;i++){
 b0.compare(b1,0,b1Len,0,b0Len);
 }
 bench.end(n);
 break;
 default:
 b0.compare(b1);
 bench.start();
-for(i=0;i<n;i++){
+for(leti=0;i<n;i++){
 b0.compare(b1);
 }
 bench.end(n);

benchmark/buffers/buffer-hex.js

@@ -9,16 +9,15 @@ const bench = common.createBenchmark(main,{
 
 functionmain({ len, n }){
 constbuf=Buffer.alloc(len);
-vari;
 
-for(i=0;i<buf.length;i++)
+for(leti=0;i<buf.length;i++)
 buf[i]=i&0xff;
 
 consthex=buf.toString('hex');
 
 bench.start();
 
-for(i=0;i<n;i+=1)
+for(leti=0;i<n;i+=1)
 Buffer.from(hex,'hex');
 
 bench.end(n);

benchmark/buffers/buffer-indexof.js

@@ -25,7 +25,7 @@ const bench = common.createBenchmark(main,{
 });
 
 functionmain({ n, search, encoding, type }){
-varaliceBuffer=fs.readFileSync(
+letaliceBuffer=fs.readFileSync(
 path.resolve(__dirname,'../fixtures/alice.html')
 );
 

benchmark/buffers/buffer-iterate.js

@@ -29,23 +29,23 @@ function main({size, type, method, n }){
 }
 
 functionbenchFor(buffer,n){
-for(vark=0;k<n;k++){
-for(vari=0;i<buffer.length;i++){
+for(letk=0;k<n;k++){
+for(leti=0;i<buffer.length;i++){
 assert(buffer[i]===0);
 }
 }
 }
 
 functionbenchForOf(buffer,n){
-for(vark=0;k<n;k++){
+for(letk=0;k<n;k++){
 for(constbofbuffer){
 assert(b===0);
 }
 }
 }
 
 functionbenchIterator(buffer,n){
-for(vark=0;k<n;k++){
+for(letk=0;k<n;k++){
 constiter=buffer[Symbol.iterator]();
 letcur=iter.next();
 

benchmark/buffers/buffer-swap.js

@@ -36,7 +36,7 @@ Buffer.prototype.htons = function htons(){
 Buffer.prototype.htonl=functionhtonl(){
 if(this.length%4!==0)
 thrownewRangeError();
-for(vari=0;i<this.length;i+=4){
+for(leti=0;i<this.length;i+=4){
 swap(this,i,i+3);
 swap(this,i+1,i+2);
 }
@@ -66,7 +66,7 @@ function createBuffer(len, aligned){
 functiongenMethod(method){
 constfnString=`
  return function ${method}(n, buf){
- for (var i = 0; i <= n; i++)
+ for (let i = 0; i <= n; i++)
  buf.${method}();
  }`;
 return(newFunction(fnString))();

benchmark/buffers/buffer-tostring.js

@@ -15,29 +15,28 @@ function main({encoding, args, len, n }){
 if(encoding.length===0)
 encoding=undefined;
 
-vari;
 switch(args){
 case1:
 bench.start();
-for(i=0;i<n;i+=1)
+for(leti=0;i<n;i+=1)
 buf.toString(encoding);
 bench.end(n);
 break;
 case2:
 bench.start();
-for(i=0;i<n;i+=1)
+for(leti=0;i<n;i+=1)
 buf.toString(encoding,0);
 bench.end(n);
 break;
 case3:
 bench.start();
-for(i=0;i<n;i+=1)
+for(leti=0;i<n;i+=1)
 buf.toString(encoding,0,len);
 bench.end(n);
 break;
 default:
 bench.start();
-for(i=0;i<n;i+=1)
+for(leti=0;i<n;i+=1)
 buf.toString();
 bench.end(n);
 break;

benchmark/buffers/buffer-write-string.js

@@ -15,21 +15,19 @@ function main({len, n, encoding, args }){
 letstart=0;
 constbuf=Buffer.allocUnsafe(len);
 
-vari;
-
 switch(args){
 case'offset':
 string='a'.repeat(Math.floor(len/2));
 start=len-string.length;
 if(encoding){
 bench.start();
-for(i=0;i<n;++i){
+for(leti=0;i<n;++i){
 buf.write(string,start,encoding);
 }
 bench.end(n);
 }else{
 bench.start();
-for(i=0;i<n;++i){
+for(leti=0;i<n;++i){
 buf.write(string,start);
 }
 bench.end(n);
@@ -39,13 +37,13 @@ function main({len, n, encoding, args }){
 string='a'.repeat(len);
 if(encoding){
 bench.start();
-for(i=0;i<n;++i){
+for(leti=0;i<n;++i){
 buf.write(string,0,buf.length,encoding);
 }
 bench.end(n);
 }else{
 bench.start();
-for(i=0;i<n;++i){
+for(leti=0;i<n;++i){
 buf.write(string,0,buf.length);
 }
 bench.end(n);
@@ -55,13 +53,13 @@ function main({len, n, encoding, args }){
 string='a'.repeat(len);
 if(encoding){
 bench.start();
-for(i=0;i<n;++i){
+for(leti=0;i<n;++i){
 buf.write(string,encoding);
 }
 bench.end(n);
 }else{
 bench.start();
-for(i=0;i<n;++i){
+for(leti=0;i<n;++i){
 buf.write(string);
 }
 bench.end(n);