lib: replace var with let/const

PR-URL: https://github.com/nodejs/node/pull/30391
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Michaël Zasso <targos@protonmail.com>
Reviewed-By: Gireesh Punathil <gpunathi@in.ibm.com>
Reviewed-By: Ruben Bridgewater <ruben@bridgewater.de>
Reviewed-By: Trivikram Kamat <trivikr.dev@gmail.com>

1 files changed, 11 insertions, 11 deletions

diff --git a/lib/events.js b/lib/events.js
index 5feb76482e..8e16904cc8 100644
--- a/lib/events.js
+++ b/lib/events.js
@@ -31,7 +31,7 @@ const {
   ReflectOwnKeys,
 } = primordials;
 
-var spliceOne;
+let spliceOne;
 
 const {
   kEnhanceStackBeforeInspector,
@@ -64,7 +64,7 @@ EventEmitter.prototype._maxListeners = undefined;
 
 // By default EventEmitters will print a warning if more than 10 listeners are
 // added to it. This is a useful default which helps finding memory leaks.
-var defaultMaxListeners = 10;
+let defaultMaxListeners = 10;
 
 function checkListener(listener) {
   if (typeof listener !== 'function') {
@@ -121,7 +121,7 @@ EventEmitter.prototype.getMaxListeners = function getMaxListeners() {
 // Returns the length and line number of the first sequence of `a` that fully
 // appears in `b` with a length of at least 4.
 function identicalSequenceRange(a, b) {
-  for (var i = 0; i < a.length - 3; i++) {
+  for (let i = 0; i < a.length - 3; i++) {
     // Find the first entry of b that matches the current entry of a.
     const pos = b.indexOf(a[i]);
     if (pos !== -1) {
@@ -218,7 +218,7 @@ EventEmitter.prototype.emit = function emit(type, ...args) {
   } else {
     const len = handler.length;
     const listeners = arrayClone(handler, len);
-    for (var i = 0; i < len; ++i)
+    for (let i = 0; i < len; ++i)
       ReflectApply(listeners[i], this, args);
   }
 
@@ -226,9 +226,9 @@ EventEmitter.prototype.emit = function emit(type, ...args) {
 };
 
 function _addListener(target, type, listener, prepend) {
-  var m;
-  var events;
-  var existing;
+  let m;
+  let events;
+  let existing;
 
   checkListener(listener);
 
@@ -357,7 +357,7 @@ EventEmitter.prototype.removeListener =
       } else if (typeof list !== 'function') {
         let position = -1;
 
-        for (var i = list.length - 1; i >= 0; i--) {
+        for (let i = list.length - 1; i >= 0; i--) {
           if (list[i] === listener || list[i].listener === listener) {
             originalListener = list[i].listener;
             position = i;
@@ -426,7 +426,7 @@ EventEmitter.prototype.removeAllListeners =
         this.removeListener(type, listeners);
       } else if (listeners !== undefined) {
         // LIFO order
-        for (var i = listeners.length - 1; i >= 0; i--) {
+        for (let i = listeners.length - 1; i >= 0; i--) {
           this.removeListener(type, listeners[i]);
         }
       }
@@ -490,14 +490,14 @@ EventEmitter.prototype.eventNames = function eventNames() {
 
 function arrayClone(arr, n) {
   const copy = new Array(n);
-  for (var i = 0; i < n; ++i)
+  for (let i = 0; i < n; ++i)
     copy[i] = arr[i];
   return copy;
 }
 
 function unwrapListeners(arr) {
   const ret = new Array(arr.length);
-  for (var i = 0; i < ret.length; ++i) {
+  for (let i = 0; i < ret.length; ++i) {
     ret[i] = arr[i].listener || arr[i];
   }
   return ret;