benchmark,lib: change var to const

Refs: https://github.com/nodejs/node/pull/26679

PR-URL: https://github.com/nodejs/node/pull/26915
Reviewed-By: Michaël Zasso <targos@protonmail.com>
Reviewed-By: Tobias Nießen <tniessen@tnie.de>
Reviewed-By: Refael Ackermann <refack@gmail.com>

1 files changed, 11 insertions, 13 deletions

diff --git a/lib/events.js b/lib/events.js
index 6a141f44d8..1eb4fc50f6 100644
--- a/lib/events.js
+++ b/lib/events.js
@@ -284,8 +284,8 @@ function onceWrapper(...args) {
 }
 
 function _onceWrap(target, type, listener) {
-  var state = { fired: false, wrapFn: undefined, target, type, listener };
-  var wrapped = onceWrapper.bind(state);
+  const state = { fired: false, wrapFn: undefined, target, type, listener };
+  const wrapped = onceWrapper.bind(state);
   wrapped.listener = listener;
   state.wrapFn = wrapped;
   return wrapped;
@@ -309,15 +309,15 @@ EventEmitter.prototype.prependOnceListener =
 // Emits a 'removeListener' event if and only if the listener was removed.
 EventEmitter.prototype.removeListener =
     function removeListener(type, listener) {
-      var list, events, position, i, originalListener;
+      let originalListener;
 
       checkListener(listener);
 
-      events = this._events;
+      const events = this._events;
       if (events === undefined)
         return this;
 
-      list = events[type];
+      const list = events[type];
       if (list === undefined)
         return this;
 
@@ -330,9 +330,9 @@ EventEmitter.prototype.removeListener =
             this.emit('removeListener', type, list.listener || listener);
         }
       } else if (typeof list !== 'function') {
-        position = -1;
+        let position = -1;
 
-        for (i = list.length - 1; i >= 0; i--) {
+        for (var i = list.length - 1; i >= 0; i--) {
           if (list[i] === listener || list[i].listener === listener) {
             originalListener = list[i].listener;
             position = i;
@@ -365,9 +365,7 @@ EventEmitter.prototype.off = EventEmitter.prototype.removeListener;
 
 EventEmitter.prototype.removeAllListeners =
     function removeAllListeners(type) {
-      var listeners, events, i;
-
-      events = this._events;
+      const events = this._events;
       if (events === undefined)
         return this;
 
@@ -397,13 +395,13 @@ EventEmitter.prototype.removeAllListeners =
         return this;
       }
 
-      listeners = events[type];
+      const listeners = events[type];
 
       if (typeof listeners === 'function') {
         this.removeListener(type, listeners);
       } else if (listeners !== undefined) {
         // LIFO order
-        for (i = listeners.length - 1; i >= 0; i--) {
+        for (var i = listeners.length - 1; i >= 0; i--) {
           this.removeListener(type, listeners[i]);
         }
       }
@@ -466,7 +464,7 @@ EventEmitter.prototype.eventNames = function eventNames() {
 };
 
 function arrayClone(arr, n) {
-  var copy = new Array(n);
+  const copy = new Array(n);
   for (var i = 0; i < n; ++i)
     copy[i] = arr[i];
   return copy;