dns: switch var to const/let

Simple exchange var to const/let. PR-URL: #30302 Reviewed-By: Ruben Bridgewater <[email protected]> Reviewed-By: Anna Henningsen <[email protected]> Reviewed-By: Сковорода Никита Андреевич <[email protected]> Reviewed-By: Colin Ihrig <[email protected]> Reviewed-By: Trivikram Kamat <[email protected]> Reviewed-By: Michael Dawson <[email protected]> Reviewed-By: Gireesh Punathil <[email protected]>
nodejs · Nov 17, 2019 · 0f8662d · 0f8662d
1 parent 3e4a6a5
commit 0f8662d
Showing 1 changed file with 7 additions and 7 deletions.
diff --git a/lib/dns.js b/lib/dns.js
@@ -73,7 +73,7 @@ function onlookupall(err, addresses) {
   }
 
   const family = this.family;
-  for (var i = 0; i < addresses.length; i++) {
+  for (let i = 0; i < addresses.length; i++) {
     const addr = addresses[i];
     addresses[i] = {
       address: addr,
@@ -88,10 +88,10 @@ function onlookupall(err, addresses) {
 // Easy DNS A/AAAA look up
 // lookup(hostname, [options,] callback)
 function lookup(hostname, options, callback) {
-  var hints = 0;
-  var family = -1;
-  var all = false;
-  var verbatim = false;
+  let hints = 0;
+  let family = -1;
+  let all = false;
+  let verbatim = false;
 
   // Parse arguments
   if (hostname && typeof hostname !== 'string') {
@@ -206,7 +206,7 @@ function onresolve(err, result, ttls) {
 
 function resolver(bindingName) {
   function query(name, /* options, */ callback) {
-    var options;
+    let options;
     if (arguments.length > 2) {
       options = callback;
       callback = arguments[2];
@@ -248,7 +248,7 @@ Resolver.prototype.reverse = resolver('getHostByAddr');
 Resolver.prototype.resolve = resolve;
 
 function resolve(hostname, rrtype, callback) {
-  var resolver;
+  let resolver;
   if (typeof rrtype === 'string') {
     resolver = resolveMap[rrtype];
   } else if (typeof rrtype === 'function') {