benchmark: (events) use destructuring

PR-URL: #18250
Reviewed-By: Matteo Collina <matteo.collina@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>

Author: BridgeAR

benchmark/events/ee-add-remove.js

@@ -4,9 +4,7 @@ const events = require('events');
 
 const bench = common.createBenchmark(main, { n: [25e4] });
 
-function main(conf) {
-  const n = conf.n | 0;
-
+function main({ n }) {
   const ee = new events.EventEmitter();
   const listeners = [];
 

benchmark/events/ee-emit.js

@@ -8,11 +8,7 @@ const bench = common.createBenchmark(main, {
   listeners: [1, 5, 10],
 });
 
-function main(conf) {
-  const n = conf.n | 0;
-  const argc = conf.argc | 0;
-  const listeners = Math.max(conf.listeners | 0, 1);
-
+function main({ n, argc, listeners }) {
   const ee = new EventEmitter();
 
   for (var k = 0; k < listeners; k += 1)

benchmark/events/ee-listener-count-on-prototype.js

@@ -4,9 +4,7 @@ const EventEmitter = require('events').EventEmitter;
 
 const bench = common.createBenchmark(main, { n: [5e7] });
 
-function main(conf) {
-  const n = conf.n | 0;
-
+function main({ n }) {
   const ee = new EventEmitter();
 
   for (var k = 0; k < 5; k += 1) {

benchmark/events/ee-listeners-many.js

@@ -4,9 +4,7 @@ const EventEmitter = require('events').EventEmitter;
 
 const bench = common.createBenchmark(main, { n: [5e6] });
 
-function main(conf) {
-  const n = conf.n | 0;
-
+function main({ n }) {
   const ee = new EventEmitter();
   ee.setMaxListeners(101);
 

benchmark/events/ee-listeners.js

@@ -4,9 +4,7 @@ const EventEmitter = require('events').EventEmitter;
 
 const bench = common.createBenchmark(main, { n: [5e6] });
 
-function main(conf) {
-  const n = conf.n | 0;
-
+function main({ n }) {
   const ee = new EventEmitter();
 
   for (var k = 0; k < 5; k += 1) {

benchmark/events/ee-once.js

@@ -4,9 +4,7 @@ const EventEmitter = require('events').EventEmitter;
 
 const bench = common.createBenchmark(main, { n: [2e7] });
 
-function main(conf) {
-  const n = conf.n | 0;
-
+function main({ n }) {
   const ee = new EventEmitter();
 
   function listener() {}